OP4177ARZ vs OP4177ARZ-REEL vs OP400GPZ Comparison

The OP4177ARZ is a very high precision quad Operational Amplifier features extremely low offset voltage and drift, low input bias current, low noise and low power consumption. Outputs are stable with capacitive loads of over 1000pF with no external compensation. Supply current is less than 500µA per amplifier at 30V. Internal 500R series resistors protect the inputs, allowing input signal levels several volts beyond either supply without phase reversal. Applications for this amplifier 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.

.

Unity-gain stable

.

No phase reversal

.

Inputs internally protected beyond supply voltage

.

60µV Maximum low offset voltage

.

0.7µV/°C Maximum very low offset voltage drift

.

8nV/√Hz Typical low noise

.

>120dB Minimum CMRR, PSRR and AVO

.

400µA/amplifier Low supply current

Product Details 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 consumption. 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.

.

*Applications**

.

Wireless base station control circuits

.

Optical network control circuits

.

Instrumentation

.

Sensors and controls

.

Precision filters

.

Low offset voltage: 60 μV maximum

.

Very low offset voltage drift: 0.7 μV/°C maximum

.

Low input bias current: 2 nA maximum

.

Low noise: 8 nV/√Hz typical

.

CMRR, PSRR, and AVO > 120 dB minimum

.

Low supply current: 400 μA per amplifier

.

Dual supply operation: ±2.5 V to ±15 V

.

Unity-gain stable

.

No phase reversal

.

Inputs internally protected beyond supply voltage

The OP400GPZ is a low power Quad Operational Amplifier that features OP77-type performance. Precision performance is not sacrificed with the OP400 to obtain the space and cost savings offered by quad amplifiers. The OP400 features an extremely low input offset voltage of less than 150µV with a drift of less than 1.2µV/°C, guaranteed over the full military temperature range. Open-loop gain of the OP400 is more than 5 million into a 10kR load, input bias current is less than 3nA, CMR is more than 120dB and PSRR is less than 1.8µV/V. On-chip Zener zap trimming is used to achieve the low input offset voltage of the OP400 and eliminates the need for offset nulling. The OP400 conforms to the industry standard quad pinout, which does not have null terminals.

.

Low offset

.

Available in die form