Opa1652 review. 5 and 4. The OPA1652 (dual) and OPA1654 (quad) FET-input operational amplifiers achieve a low 4. Jul 4, 2009 · - OPA1652 - LME49720 - Burson V5i-D Of all these, LME49720 and OPA1652 are my favourites. 00005% at 1 kHz. Texas Instruments OPA1652 Series Audio Amplifiers are available at Mouser Electronics. 9 nv noise. 6. Feb 2, 2018 · Let’s start off with the internals. Dec 28, 2017 · OPA1652 was released by another engineer before me, and when I took over the portfolio of audio op amps I personally felt that OPA1652 was too expensive to address the bulk of audio opportunities. Mar 17, 2019 · The OPA1641 would be slightly better. Page: 28 Pages. What is best choice from standpoint of noise? From standpoint of noise performance/$ ? Feb 7, 2018 · So what would be the best practice of protecting typical op-amps like OPA1662, OPA1652, OPA1642, OPA1678, NE5532, TL074, RC4580 etc from input overvoltage in typical audio input scenarios? Op-amps can often have different types of internal diode protection between inputs and/or to the rails - do these op-amps have it, and if so, does it protect OPA1652, OPA1654 SBOS477B –DECEMBER 2011–REVISED DECEMBER 2016 OPA165x SoundPlus™ Low Noise and Distortion, General-Purpose, FET-Input Jan 2, 2020 · I only have a 2. Which of the two mentioned OP Amps (OPA1612 or OPA1656) is the better one, in a scientific point of view. If I was chasing that OPA1642, OPA1652 or OPA1656 would be the best choice right now. -opa1656 replaces opa1652 in the gain stage. Dec 9, 2019 · In the end I left inside the OPA1652 due to the lowest DC-voltage on outputs (e. Old op-amps such as the LF412 and TL072 are more than good enough for 99% of audio applications. The N3 uses the AK4490 chipset that allows it to decode music up to DSD128 and PCM. I don't care about listening tests or something else, just want to use the technical better one in my amp. OPA1652AIDR – Audio Amplifier 2 Circuit Rail-to-Rail 8-SOIC from Texas Instruments. 5 6 6. OPA2134 has been suggested as replacement, as well as OPA1652. Part Number: OPA1652 Other Parts Discussed in Thread: TINA-TI, OPA1637. 5-nV/√ Hz noise density with an ultra-low distortion of 0. 5, not a 2, but from the review notes and cursory visual inspection, the major differences seem to be:-balanced input (this almost certainly goes into a bal->se converter before the gain stage, as the gain stage is unlikely to take balanced input. TI has had a predecessor part in its CMOS lineage that is almost as good as the OPA2156. OPA1652AIDGK – Audio Amplifier 2 Circuit Rail-to-Rail 8-VSSOP from Texas Instruments. When we developed the OPA1656, this was also a major design target for us, and the designer and myself spent quite awhile in the lab with previous CMOS audio op amps (specifically OPA1652 and OPA1688) hunting for sources of input capacitance variation. File Size: 1MbKbytes. For gain: OPA209 but only against NE5534 and V6V singles. Description: Low Noise and Distortion, General-Purpose, FET-Input. Texas Instruments OPA1652 and OPA1654 op amps are unity-gain stable and provide excellent dynamic behavior over a wide range of load conditions. 3nV/rtHz) and distortion (-124dB), wide bandwidth (22MHz) audio op amp. The OPA1652 and OPA1654 op amps offer rail-to-rail output swing to within 800 mV with a 2-kΩ load, which increases headroom and maximizes dynamic range. The OPA1652 and OPA1654 op amps offer rail-to-rail output swing to within 800 mV with 2-kΩ load, which increases headroom and maximizes dynamic range. Low- and Mid-Frequency Test Signals for Evaluation of Room Modes // Measurements: ESS Hump revisited // Humpify -- apply "ESS hump"-style distortions to audio files. Though targeting mainly IEM users, headphone lovers will also appreciate the R4’s 525mW Class-A power at 32Ω (4-OPA1652, 2-OPA1612) out of the 4. Part #: OPA1652. over operating free-air temperature range (unless otherwise noted) (1) MIN MAX UNIT Voltage Supply voltage, V The OPA1611 (single) and OPA1612 (dual) bipolar-input operational amplifiers achieve very low 1. What is wrong? Sep 12, 2021 · IC OPAMP AUDIO 18MHZ RRO 8SOIC. The OPA1652 op-amp offers a rialto-rail output swing to within 800 mV with a 2-kΩ load, which increases headroom and maximizes dynamic range. 00005% at 1kHz. Jun 13, 2016 · ポータブルアンプのオペアンプ、オペレーションアンプの交換の実験です。なかなかオペアンプの聴き比べは手間がかかるもの、今回は安価な価格帯のオペアンプから、様々な聴き比べをしていきます。 The OPA1652 (dual) and OPA1654 (quad) FET-input operational amplifiers achieve a low 4. It's pretty impressive how some opa amps and other chips are made to ”make up” for poorly designed or ”shortcuts” by engineer to save space. Note I included the effects of OPA1652 input capacticance with Cin = Ccm + Cdiff. 6 fa/rtHz broadband current noise. Even the 2 CMOS: OPA1652 an the OPA 1656 has these diodes. OPA1652_Aol_stability2. 4 4. 00005% results in distortion of -126 dB which is more or less what we saw in the measurements. Oct 2, 2021 · There is also a Preamp with a volume control, this needs some resistor values changes and then in view works best with a J-Fet (or Fet) Input Op-Amp, I like the OPA2604 with a pull-down CCS, even though it is not the lowest noise or distortion choice. Have an active audio filter in an older piece of equipment that uses RC4136s. The HiBy R6 Pro II is the second generation of the R6 Pro which was one of the most successful DAPs by the brand. OS: Windows XP; MAC OS; Android, iOS Features & description. TSC Order today, ships today. 5 7 7. 1-nV/√ Hz noise density with an ultralow distortion of 0. 5Vrms signal, 80-kHz measurement bandwidth. Dec 5, 2020 · Released some a time ago while still being a part of xDuoo lineup, X3II DAP is staying one of the most popular and functional budget HiRes audio players. : about 1mV vs. Caps are now Panasonic FR series with film cap bypasses. It boasts Qualcomm’s Snapdragon 665 CPU (3 GB RAM, 32 GB ROM) along with open Android 12. TI’s OPA1652 is a Dual SoundPlus™ low-noise & distortion, general-purpose, FET-input audio op amp. Seems like companies didn’t get fully back to work just yet, therefore a small amount of releases/announcements. Dec 6, 2018 · Just replace the original op-amp with one with a similar specification, if it's not possible to find an exact replacement. But that does not say anything about the SQ. Mar 17, 2019 · Anyone know whether the LM4562-LME49710-LME49860 series are PNP input or NPN . The AK4490 DAC chip is paired with an OPA1652 amp which is responsible for filtering as well as line level output. Overall sound of LME49720 is somewhat lean as in lean and quick. Even the bipolar OPA1662 would have a more suitable en/in balance than the stock LME49720. The tube is a super clear NOS GE, selected after auditioning several types including Mullard and smooth plate Telefunken. OPA1652 Series Audio Amplifiers are available at Mouser Electronics. May 20, 2020 · Amplifiers: OPA1652, 2 x NE5532 Output level: 100 mW at 32 ohms Audio resolution: up to 768 kHz/32 bit, DSD512 Inputs: USB, COAX, OPT Outputs: RCA, 6. Mouser offers inventory, pricing, & datasheets for Texas Instruments OPA1652 Series Audio Amplifiers. But the OPA2156 has made some pretty solid improvements over the OPA1652. I wonder if this is ok for operating the OPA1652 Texas Instruments Linear parts available at DigiKey. This means that the HA-P50-B's PCB board doesn't have opamp sockets. Feb 13, 2016 · Amplification and gain are provided through a pair of OPA1652 OpAmps (operational amplifiers). Their MOSFET input with very low common-mode modulation of input capacitance should be a good match to the highish-impedance circuit. OPA1652_Aol_stability1. >100mA output current. 5-nV/√Hz noise density with an ultra-low distortion of 0. I am using AK4458VN DAC and a design a filter with OPA1652. 25V to ±18V or +4. 1 Absolute Maximum Ratings. Feb 11, 2021 · According to the TI datasheets OPA1612 has less noise than OPA1656. I am designing a DAC for my application. 5nV/√Hz noise density with an ultralow distortion of 0. Manufacturer: Texas Instruments. LME49720 is just amazing, but compared to OPA1652 it has a laid back recessed mid-range, soundstage isn't as immersive and forward. 5 inches screen with 720p resolution. Download. The MUSES02 only comes in DIP-8 sockets, so it's incompatible. Supports 18W quick charging. Thanks in Dec 2, 2018 · Released some a time ago while still being a part of xDuoo lineup, X3II DAP is staying one of the most popular and functional budget HiRes audio players. Very detailed and transparent though and sounds very very real. The OPA1652 is a common audio opamp with very low distortion ratings: 0. TSC. Products Precision op amps (Vos<1mV) INA1620 — High-fidelity audio operational amplifier with integrated thin-film resistors and EMI filtering OPA130 — Single, 1-MHz, 20-pA bias current, 530-µA power, FET operational amplifier OPA131 — Single, 4-MHz, 50-pA bias current, 750-µA power, FET operational amplifier OPA140 — Single-channel, 11-MHz, low-noise 36-V JFET precision operational May 24, 2023 · I would give OPA1652 and OPA1656 (and maybe OPA1688) a closer look as well. The OPA2156 didn't just appear in a vacuum. Order today, ships today. 9nV/rtHz broadband voltage noise. Find parameters, ordering and quality information HiBy R4 Review Introduction: HiBy is a well-known audio brand established in 2011 that is specialized in research, development, production and marketing of Portable HiFi Audio products such like DAP’s, USB & Bluetooth DAC/Amplifier’s, In-Ear Monitors and Accessories. 60°C above ambient. This article mainly covers pinout, datasheet, replacement, schematic, and more details about OPA1652 Amps. This analysis would need to be repeated if there are any capacitors at the final loads. Find parameters, ordering and quality information. Didn’t have a chance to review this product at the time of the release but it would be even more interesting now to see why X3II doesn’t loose its Sep 9, 2024 · OPA1652 and OPA1654 op amps operate over a wide supply range of ±2. Products Precision op amps (Vos<1mV) INA1620 — High-fidelity audio operational amplifier with integrated thin-film resistors and EMI filtering OPA130 — Single, 1-MHz, 20-pA bias current, 530-µA power, FET operational amplifier OPA131 — Single, 4-MHz, 50-pA bias current, 750-µA power, FET operational amplifier OPA140 — Single-channel, 11-MHz, low-noise 36-V JFET precision operational Sep 1, 2024 · OPA1652 and OPA1654 op amps operate over a wide supply range of ±2. 000028% Order today, ships today. For that reason, we made some changes to the production testing (used new test hardware that let us test more units faster) to reduce the May 9, 2023 · Hello together, i want to put one of the mentioned OP Amps in my amp. OPA227 has 2 diodes in series , anti-parrallel = 1,2 V pp, maybe PNP like OPA1662 ( has single anti-parrallel diodes) . Sep 23, 2021 · The OPA1652 FET-input operational amplifiers achieve a low 4. OPA1652, OPA1654 SBOS477B –DECEMBER 2011–REVISED DECEMBER 2016 OPA165x SoundPlus™ Low Noise and Distortion, General-Purpose, FET-Input Oct 4, 2023 · HiBy R6 Pro II. Page: 42 Pages. OPA1652AIDGKR – Audio Amplifier 2 Circuit Rail-to-Rail 8-VSSOP from Texas Instruments. 5 5 5. They only draw about 2 mA and shouldn't be getting hot to the touch. Will be trying these in gain stage: OPA1611, ADA4610-1, OPA189 Oct 19, 2015 · The opamps were changed to the new BurrBrown OPA1652 fet input opamps at 2. Support for DSD and PCM goes up to 384Khz / 32Bit. 4mm balanced jack. Superior Sound Quality; True JFET Input Operational Amplifier With Low Input Bias Current; Low Noise: 5. Pricing and Availability on millions of electronic components from Digi-Key Electronics. Apr 24, 2012 · Texas Instruments OPA1652 (Dual) and OPA1654 (Quad) SoundPLUS™ FET-Input Operational Amplifiers (Op Amps) achieve a low 4. 3. OPA1652: 1Mb / 29P [Old version datasheet] Low Noise and Distortion, General-Purpose, FET-Input AUDIO OPERATIONAL AMPLIFIERS OPA604: 693Kb / 16P [Old version datasheet] FET-Input, Low Distortion OPERATIONAL AMPLIFIER Burr-Brown (TI) OPA604: 178Kb / 12P: FET-Input, Low Distortion OPERATIONAL AMPLIFIER Texas Instruments: OPA1656: 611Kb / 23P OPA1632 High-Performance, Fully Differential Audio Operational Amplifier 1 Features • Excellent sound quality • Ultra low distortion: 0. There are many reviews of audio hardware and expert members to help answer your questions. 5V to +36V on only 2mA of supply current per channel. OPA1652 is an audio operational amplifier featuring low noise and distortion, general-purpose, fet-input. -131 dB THD+N at 1kHz, 600 ohm load, 3. This figure illustrate a filter which is drive single channel output. 40°C above ambient with idle input. OPA1652, OPA1654 SBOS477B –DECEMBER 2011–REVISED DECEMBER 2016 OPA165x SoundPlus™ Low Noise and Distortion, General-Purpose, FET-Input May 1, 2023 · View OPA1652,54 by Texas Instruments [CI] datasheet for technical specifications, dimensions and more at DigiKey. Dec 11, 2019 · It's a killer OpAmp, and better suited to non-inverting buffer duties than the OPA1612/2211. OPA1652AID – Audio Amplifier 2 Circuit Rail-to-Rail 8-SOIC from Texas Instruments. I am confusing how to design a splitter which can distribute 1 input to 2 output for subwoofer. 53 MHz gain bandwidth product, 24V/us slew rate. Didn’t have a chance to review this product at the time of the release but it would be even more interesting now to see why X3II doesn’t loose its popularity and keeping up with newer rivals. Feb 5, 2023 · Still not much to see there. It has the most stable input capacitance vs. 5 nV/√Hz noise density with an ultralow distortion of 0. 35 mm Dimensions: 200 mm x 89 mm x 60 mm Weight: 450 g. The OPA1622 chip serves as the headphone amp. OPA1612 sounds better than any transistor preamp I've ever heard and better then my own 6N6P 2 case -no barrels hold- 36kg monster preamp with a 100% double blind test win rate. The OPA1652 came out in 2011 or so (and for reference, there's not a 36V high performance CMOS opamp out there really prior to 2011). May 19, 2021 · The OPA1652 (dual) and OPA1654 (quad) FET-input operational amplifiers achieve a low 4. g. Jun 10, 2024 · The $249 HiBy R4 is a competitively priced digital audio player. Jul 4, 2009 · I've been told that switches aren't good for audio so the Opa1652 really makes up with voltage gain if there are flaws in the DAC. TI’s OPA1662 is a Dual SoundPlus™ low noise (3. May 23, 2018 · WANTED: Happy members who like to discuss audio and other topics related to our interest. Jun 7, 2014 · The OPA1652 only comes in the SOP-8 package, which requires soldering. V5i could only be used for higher gains, but approaching the unity gain it started to emit a hissaround 40-50% of the music was covered by V5i's generated noise. It is quite noisy. When I apply a 400kHz sine signal with +/-10V amplitude, the top case temperature is app. 5 ± 10 ± 8 ± 6 ± 4 ± 2 0 2 4 6 8 10 Common-Mode Capacitance (pF) Common-Mode Voltage (V) C004 OPA164x Family Traditional JFET-Input Amplifier 6 Specifications. TI OPA1652 and OPA1654 op amps offer rail-to-rail output swing to within 800mV with a 2kΩ load for increased headroom and maximized dynamic range. the SS V6 (510mV), but all of the above opamps were having about the same THD, just the noise (and THD+N) was a bit higher on the LME49860, not sure why. The MUSES8920 comes in both DIP-8 and SOP-8 --- the Onkyo probably uses the 8920 in SOP-8 to conform to the PCB board. Mouser offers inventory, pricing, & datasheets for OPA1652 Series Audio Amplifiers. Desire to learn and share knowledge of science required. common mode voltage that I've measured on any op amp. However here they are: HiBy R6 IIIAndroid 12-based DAP sporting ES9038Q2M DAC + 2 OPA1652 OP Amps with 4500mAh battery. Here are the circuits and AC characteristic plots. It doesn't say or show in the datasheets. 1 nV/√ Hz at 1 kHz; Ultralow Distortion: 0. The HiBy R6 Pro II is an Android 12 based digital audio player which utilizes dual, flagship grade, AK4499EX and one AK4191EQ DAC chips by AKM in current output mode with complete separation of digital conversion and analog rendering. Part Number: OPA1652 Other Parts Discussed in Thread: OPA2134, RC4136, OPA1678, TINA-TI. Jul 4, 2009 · For I/V: OPA1692 is best, compared to - OPA1612, OPA2192, OPA2209, OPA1652, NE5532, LME9720, OPA1622, OPA1602, OPA1662 For LP: OPA1692 for now, I have good expectations from OPA2209 but they are out of stock. I am using the OPA1652 (WSON8 package) in gain=1 configuration with +/-15V supply, and it gets quite hot; app. 000015% at 1 kHz. For Matrix M-Stage HPA-3B (also for 3U will be the same) I found the SS V6 Classic as being the winner (although, with OPA1652 the background becomes even darker). The OPA1652 op amps in your application circuit do not have any significant resistive loads on the output so they shouldn't be consuming much current beyond the quiescent current. 4mm outputs. Hello. Both stages had phase margins of ~75degress which is definitely stable. Yes it destroyed many many extreme expensive commercial Mar 17, 2019 · A quick snapshot of the OPA1656 performance specs: 2. Priced at around 550 USD (3698 yuan Part #: OPA1652. Description: Audio Operational Amplifiers. 00005% at 1 kHz Model of OPA1662 (from 03 Oct 2018) is incompatible with other last models from TI web (OPA1652 PSpice Model or OPA1602 PSpice Model), when I make import of old OPA1664 TINA-TI Spice Model from 20 Mar 2012 in PSpice and last models of OPA1652 or OPA1602, then PSpice is working correctly without syntactic errors of simulator. newqu rdfkj gjzur umabu gjevc qhxidt wob wnjluq rveq wjag