ADA4511-2ARZ

The ADA4511-2 is a dual, 40V, high precision, low input bias current, low offset voltage, low offset voltage drift, low noise, rail-to-rail input and output op amp suitable for any position in a signal chain, including sensing, conditioning, and output driving. Through trimming, the ADA4511-2 achieves low offset drift (typical ±0.4 μV/°C, maximum ±2 μV/°C) and low offset voltage (typical ±25 μV, maximum ±75 μV). The device delivers excellent dc and ac accuracy for a wide range of signal chain applications. Its integrated robust multiplexer-compatible architecture effectively addresses common system distortion and settling issues, providing the superior precision required for multiplexed multichannel precision signal chains. The ADA4511-2 operates over a −40°C to +125°C temperature range and is available in 8-lead SOIC_N and 8-lead MSOP packages.

Applications

• Multiplexed data acquisition systems
• Electronic test and measurement
• Automatic test equipment
• Medical instrumentation
• Energy monitoring

Key features

• Low offset voltage drift: ±2 μV/°C maximum
• Low offset voltage: ±75 μV maximum
• Low voltage noise: 1 μVₚ₋ₚ typical, 0.1 Hz to 10 Hz
• Low voltage noise density: 5 nV/√Hz typical at f = 1 kHz
• High CMRR: 140 dB typical
• Low input bias current: ±10 pA maximum
• Wide gain bandwidth product: 10.4 MHz typical
• High slew rate: 19 V/μs typical
• Low THD: −134 dB at f = 1 kHz
• Low quiescent current: 1.45 mA per amplifier typical
• Wide supply voltage range: 6 V to 40 V, ±3 V to ±20 V
• Integrated EMI filter
• MUX-compatible inputs
• Rail-to-rail high impedance: differential and common mode
• Fast settling time
• Rail-to-rail output
• No phase reversal
• Robust capacitive load drive: 1 nF
• Wide specified temperature range: −40°C to +125°C
• Available in 8-pin SOIC_N and 8-pin MSOP packages