AD8628WAUJZ-R7

Part: AD8628/AD8629/AD8630 — Analog Devices

Type: Zero-Drift, Single-Supply, Rail-to-Rail Input/Output Operational Amplifier

Description: Ultralow offset, drift, and bias current operational amplifier featuring rail-to-rail input and output swing, low noise, and specified for 2.7 V to 5 V single supply operation.

Operating Conditions:

• Supply voltage: 2.7 V to 5 V single supply (±1.35 V to ±2.5 V dual supply)
• Operating temperature: -40°C to +125°C

Key Specs:

• Offset Voltage: 10 μV (max, -40°C ≤TA ≤ +125°C)
• Input Offset Drift: 0.02 μV/°C (max, -40°C ≤TA ≤ +125°C)
• Input Bias Current (AD8628/AD8629): 100 pA (max, TA = 25°C)
• Common-Mode Rejection Ratio (CMRR): 120 dB (min, VCM = 0V to 5V)
• Large Signal Voltage Gain (AVO): 120 dB (min, -40°C ≤TA ≤ +125°C, RL = 10 kΩ)
• Supply Current per Amplifier: 1.2 mA (max, -40°C ≤TA ≤ +125°C)
• Slew Rate: 1.0 V/μs (typ, RL = 10 kΩ)
• Gain Bandwidth Product: 2.5 MHz (typ)
• Voltage Noise (0.1 Hz to 10 Hz): 0.5 μV p-p (typ)

Features:

• Lowest auto-zero amplifier noise
• Low offset voltage: 1 μV
• Input offset drift: 0.002 μV/°C
• Rail-to-rail input and output swing
• 5 V single-supply operation
• High gain, CMRR, and PSRR: 130 dB
• Very low input bias current: 100 pA maximum
• Low supply current: 1.0 mA
• Overload recovery time: 50 μs
• No external components required
• Qualified for automotive applications

Applications:

• Automotive sensors
• Pressure and position sensors
• Strain gage amplifiers
• Medical instrumentation
• Thermocouple amplifiers
• Precision current sensing
• Photodiode amplifiers

Package:

• 5-lead TSOT
• 5-lead SOT-23
• 8-lead narrow SOIC
• 8-lead MSOP
• 14-lead narrow SOIC
• 14-lead TSSOP

Lowest auto-zero amplifier noise Low offset voltage: 1 μV Input offset drift: 0.002 μV/°C Rail-to-rail input and output swing 5 V single-supply operation High gain, CMRR, and PSRR: 130 dB Very low input bias current: 100 pA maximum Low supply current: 1.0 mA Overload recovery time: 50 μs No external components required Qualified for automotive applications

Automotive sensors Pressure and position sensors Strain gage amplifiers Medical instrumentation Thermocouple amplifiers Precision current sensing Photodiode amplifiers

VS = 5.0 V, VCM = 2.5 V , TA = 25°C, unless otherwise noted.

Table 1.

θJA is specified for worst-case conditions, that is, θJA is specified for the device soldered in a circuit board for surface-mount packages. This was measured using a standard two-layer board.