ADI ADA4077-4

ADA4077-4 General Description

GENERAL DESCRIPTIONThe single ADA4077-1, dual ADA4077-2, and quad ADA4077-4 amplifiers feature extremely low offset voltage and drift, and low input bias current, noise, and power consumption. Outputs are stable with capacitive loads of more than 1000 pF with no external compensation.Applications for this amplifier include sensor signal conditioning (such as thermocouples, resistance temperature detectors (RTDs), strain gages), process control front-end amplifiers, and precision diode power measurement in optical and wireless transmission systems. The ADA4077-1/ADA4077-2/ADA4077-4 are useful in line powered and portable instrumentation, precision filters, and voltage or current measurement and level setting.Unlike other amplifiers, the ADA4077-1/ADA4077-2/ADA4077-4 have an MSL1 rating that is compliant with the most stringent of assembly processes, and they are specified over the extended industrial temperature range from −40°C to +125°C for the most demanding operating environments.The ADA4077-1 and ADA4077-2 are available in an 8-lead SOIC package, including the B grade, and in an 8-lead MSOP (A grade only). The ADA4077-4 is offered in a 14-lead TSSOP and a 14-lead SOIC package.FEATURES   Offset voltage:      25 μV maximum at 25°C (B grade, 8-lead SOIC, single/ dual)      50 μV maximum at 25°C (A grade, 8-lead SOIC, single/ dual)      50 μV maximum at 25°C (A grade, 14-lead SOIC, quad)   Offset voltage drift:      0.25 μV/°C maximum (B grade, 8-lead SOIC, single/dual)      0.55 μV/°C maximum (A grade, 8-lead SOIC, single/dual)      0.75 μV/°C maximum (A grade, 14-lead SOIC, quad)   MSL1 rated   Low input bias current: 1 nA maximum at TA = 25°C   Low voltage noise density: 6.9 nV/√Hz typical at f = 1000 Hz   CMRR, PSRR, and AV> 120 dB minimum   Low supply current: 400 μA per amplifier typical   Wide gain bandwidth product: 3.9 MHz at ±5 V   Dual-supply operation:      Specified at ±5 V to ±15 V      Operates at ±2.5 V to ±15 V   Unity gain stable   No phase reversal   Long-term offset voltage drift (10,000 hours): 0.5 μV typical   Temperature hysteresis: 1 μV typicalAPPLICATIONS   Process control front-end amplifiers   Optical network control circuits   Instrumentation   Precision sensors and controls   Precision filters

Features

• Offset voltage:
• 25 μV maximum at 25°C (B grade, 8-lead SOIC, single/ dual)
• 50 μV maximum at 25°C (A grade, 8-lead SOIC, single/ dual)
• 50 μV maximum at 25°C (A grade, 14-lead SOIC, quad)
• Offset voltage drift:
• 0.25 μV/°C maximum (B grade, 8-lead SOIC, single/dual)
• 0.55 μV/°C maximum (A grade, 8-lead SOIC, single/dual)
• 0.75 μV/°C maximum (A grade, 14-lead SOIC, quad)
• MSL1 rated
• Low input bias current: 1 nA maximum at TA = 25°C
• Low voltage noise density: 6.9 nV/√Hz typical at f = 1000 Hz
• CMRR, PSRR, and AV> 120 dB minimum
• Low supply current: 400 μA per amplifier typical
• Wide gain bandwidth product: 3.9 MHz at ±5 V
• Dual-supply operation:
• Specified at ±5 V to ±15 V
• Operates at ±2.5 V to ±15 V
• Unity gain stable
• No phase reversal
• Long-term offset voltage drift (10,000 hours): 0.5 μV typical
• Temperature hysteresis: 1 μV typical

Application

• Process control front-end amplifiers
• Optical network control circuits
• Instrumentation
• Precision sensors and controls
• Precision filters

Specifications