The OPA1655 and OPA1656 (OPA165x) are Burr-Brown™ op amps designed specifically for audio and industrial applications, where maintaining signal fidelity is crucial. The FET-input architecture achieves a low 2.9‑nV/√Hz voltage noise density and 6‑fA/√Hz current noise density, allowing for very-low noise performance in a wide variety of circuits. The high bandwidth and high open-loop-gain design of the OPA165x delivers a low distortion of 0.000035% (–129 dB) at 20 kHz, and improves audio signal fidelity across the full audio bandwidth. These devices also feature excellent output current drive capability, offering rail-to-rail output swing to within 250 mV of the power supplies with a 2‑kΩ load, and can deliver 100 mA of output current.
The OPA165x operate over a very wide supply range of ±2.25 V to ±18 V or (4.5 V to 36 V) on 3.9 mA of supply current to accommodate the power-supply constraints of many types of audio products. The temperature range is specified from –40°C to +125°C.
PART NUMBER | CHANNEL | PACKAGE(1) |
---|---|---|
OPA1655 | Single | D (SOIC, 8) |
DBV (SOT-23, 5) | ||
OPA1656 | Dual | D (SOIC, (8) |
Changes from Revision B (December 2021) to Revision C (September 2022)
Changes from Revision A (July 2019) to Revision B (December 2021)
Changes from Revision * (March 2019) to Revision A (July 2019)
PIN | TYPE | DESCRIPTION | ||
---|---|---|---|---|
NAME | NO. | |||
D (SOIC) | DBV (SOT-23) | |||
–IN | 2 | 4 | Input | Inverting input |
+IN | 3 | 3 | Input | Noninverting input |
OUT | 6 | 1 | Output | Output |
V– | 4 | 2 | Power | Negative (lowest) power supply |
V+ | 7 | 5 | Power | Positive (highest) power supply |
PIN | TYPE | DESCRIPTION | |
---|---|---|---|
NAME | NO. | ||
–IN A | 2 | Input | Inverting input, channel A |
+IN A | 3 | Input | Noninverting input, channel A |
–IN B | 6 | Input | Inverting input, channel B |
+IN B | 5 | Input | Noninverting input, channel B |
OUT A | 1 | Output | Output, channel A |
OUT B | 7 | Output | Output, channel B |
V– | 4 | Power | Negative (lowest) power supply |
V+ | 8 | Power | Positive (highest) power supply |