The OPx177 family consists of very high precision, single, dual, and quad amplifiers featuring extremely low offset voltage and drift, low input bias current, low noise, and low power consump-tion. Outputs are stable with capacitive loads of over 1000 pF with no external compensation. Supply current is less than 500 μA per amplifier at 30 V. Internal 500 Ω series resistors protect the inputs, allowing input signal levels several volts beyond either supply without phase reversal.
Unlike previous high voltage amplifiers with very low offset voltages, the OP1177 (single) and OP2177 (dual) amplifiers are available in tiny 8-lead surface-mount MSOP and 8-lead narrow SOIC packages. The OP4177 (quad) is available in TSSOP and 14-lead narrow SOIC packages. Moreover, specified performance in the MSOP and the TSSOP is identical to performance in the SOIC package. MSOP and TSSOP are available in tape and reel only.
The OPx177 family offers the widest specified temperature range of any high precision amplifier in surface-mount packaging. All versions are fully specified for operation from −40°C to +125°C for the most demanding operating environments.
Applications for these amplifiers include precision diode power measurement, voltage and current level setting, and level detection in optical and wireless transmission systems. Additional applications include line-powered and portable instrumentation and controls—thermocouple, RTD, strain-bridge, and other sensor signal conditioning—and precision filters.
Features and Benefits | AmplifiersSPICE Models |
| Document | note |
| OP1177/OP2177/OP4177: Precision Low Noise, Low InputBias Current Operational Amplifiers Data Sheet (Rev. G) | PDF 487 kB |
| Part Number | Package | Packing Qty | Temp Range | Price 100-499 | Price 1000+ | RoHS |
|---|---|---|---|---|---|---|
| OP2177ARMZ Production | 8 ld MSOP | OTH 50 | -40 to 125C | 1.7 | 1.53 | Y |
| OP2177ARMZ-R7 Production | 8 ld MSOP | REEL 1000 | -40 to 125C | 0 | 1.53 | Y |
| OP2177ARMZ-REEL Production | 8 ld MSOP | REEL 3000 | -40 to 125C | 0 | 1.53 | Y |
| OP2177ARZ Production | 8 ld SOIC | OTH 98 | -40 to 125C | 1.7 | 1.53 | Y |
| OP2177ARZ-REEL Production | 8 ld SOIC | REEL 2500 | -40 to 125C | 0 | 1.53 | Y |
| OP2177ARZ-REEL7 Production | 8 ld SOIC | REEL 1000 | -40 to 125C | 0 | 1.53 | Y |
| Part Number | Description | Price | RoHS |
|---|---|---|---|
| EVAL-AD7761FMCZ | Evaluation Board | 138 | Y |
| EVAL-AD7768-4FMCZ | Evaluation Board | 138 | Y |
| EVAL-AD7768FMCZ | Evaluation Board | 138 | Y |
| EVAL-PRAOPAMP-2CPZ | Dual CP-8 lead LFCSP Evaluation Board | 20.19 | Y |
| EVAL-PRAOPAMP-2RMZ | Dual RM-8 lead MSOP Evaluation Board | 20.19 | Y |
| EVAL-PRAOPAMP-2RZ | Dual R-8 lead SOIC Evaluation Board | 20.19 | Y |
| EVAL-SDP-CH1Z | Controller Board | 199 | Y |
