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AD8606ARMZ

Dual precision op-amp, 65µV VOS, 1pA IB, 8nV/√Hz, 10MHz, MSOP-8

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Manufacturer Part：

AD8606ARMZ

Package：

MSOP-8 (3.0×3.0×0.85 mm, 0.65mm pitch)

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Description

Product Overview

The AD8606ARMZ from Analog Devices is a dual precision, low-noise, rail-to-rail input/output CMOS operational amplifier. With 65 µV max offset voltage, 1 pA max input bias current, 8 nV/√Hz noise, and 10 MHz bandwidth, it uses ADI’s patented DigiTrim technology for exceptional precision without laser trimming. Packaged in a tiny MSOP-8 for space-constrained precision analog designs.

Key Specifications

Number of Channels 2 (dual)
Input Offset Voltage (VOS) 65 µV max (B grade)
Input Bias Current (IB) 1 pA max
Input Voltage Noise Density 8 nV/√Hz @ 1 kHz
Gain Bandwidth Product (GBW) 10 MHz
Slew Rate 5 V/µs
Open-Loop Gain 1000 V/mV (120 dB)
CMRR 85 dB min (B grade)
PSRR 80 dB min
Supply Voltage 2.7V to 5.5V (single supply)
Supply Current per Amplifier 1 mA typical
Output Current 80 mA peak
Operating Temperature -40°C to +125°C
Package MSOP-8 (3×3 mm)

Features

  • Ultra-low offset voltage: 65 µV max using DigiTrim technology
  • Ultra-low input bias current: 1 pA max (CMOS input)
  • Low noise: 8 nV/√Hz voltage noise density
  • Rail-to-rail input and output for maximum dynamic range
  • 10 MHz bandwidth with 5 V/µs slew rate
  • Unit-gain stable
  • Single-supply operation: 2.7V to 5.5V
  • Extended industrial temperature: -40°C to +125°C

Applications

  • Photodiode transimpedance amplifiers
  • Portable and loop-powered instrumentation
  • Multipole active filters
  • High-impedance sensor signal conditioning
  • Audio amplification in portable devices

The AD8606ARMZ from Analog Devices is a dual precision CMOS op-amp with 65 µV max offset, 1 pA max bias current, 8 nV/√Hz noise, and 10 MHz GBW in a tiny MSOP-8 package. Using patented DigiTrim technology for laser-free trimming, its rail-to-rail I/O and wide supply range (2.7-5.5V) make it ideal for photodiode amplifiers, portable instrumentation, active filters, and high-impedance sensor conditioning.

The AD8606ARMZ uses a CMOS input stage with DigiTrim technology, where digital correction codes are stored in on-chip fuses to trim the input offset voltage to 65 µV max without laser trimming. The CMOS input pair provides ultra-low input bias current (1 pA max) since MOSFET gate leakage is extremely low. The rail-to-rail input stage uses complementary N-channel and P-channel input pairs that transition as the common-mode voltage sweeps through the supply range. The rail-to-rail output stage uses a common-source configuration to swing within millivolts of both supply rails. The 10 MHz gain-bandwidth product and 5 V/µs slew rate support moderate-speed precision applications. The 120 dB open-loop gain ensures minimal gain error in closed-loop configurations.

Pin Name Type Function
1 OUT A Output Amplifier A output
2 -IN A Input Amplifier A inverting input
3 +IN A Input Amplifier A non-inverting input
4 V- Power Negative supply / ground (0V for single supply)
5 +IN B Input Amplifier B non-inverting input
6 -IN B Input Amplifier B inverting input
7 OUT B Output Amplifier B output
8 V+ Power Positive supply (2.7-5.5V)
  • Photodiode transimpedance amplifiers with low bias current
  • Portable and loop-powered precision instrumentation (4-20 mA)
  • Multi-pole active filters with low DC error
  • High-impedance sensor conditioning: pH, electrochemical, piezo
  • Audio amplification in battery-powered portable devices
Manufacturer Part Number Package Notes
ADI AD8605ARTZ SOT-23-5 Single channel version, same specs
ADI AD8608ARUZ TSSOP-14 Quad channel version, same specs
ADI ADA4522-2ARMZ MSOP-8 Zero-drift, 88µV max offset, lower noise
TI OPA2365AIDGKR VSSOP-8 50MHz, 0.2pA IB, similar precision
TI LMV358IDGKR VSSOP-8 Low cost, lower performance CMOS dual
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Address: Room 2919, Guoli Building, Huaqiang North, Futian District, Shenzhen, Guangdong, China
 

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