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MAX9638：3V/5V Low-Power, Low Input-Bias, CMOS, Rail-to-Rail I/O Op Amps

Delivers Low-Power, Cost-Effective Solutions Where Low Noise and Low IBIAS Are Critical

The MAX9636/MAX9637/MAX9638 are single-supply, CMOS input op amps featuring wide bandwidth at low quiescent current, making them suitable for a broad range of battery-powered applications such as portable medical instruments, portable media players, and smoke detectors. A combination of extremely low input bias currents, low input current noise and low input voltage noise allows interface to high-impedance sources such as photodiode and piezoelectric sensors. The ICs feature a maximized ratio of gain bandwidth (GBW) to supply current. The devices operate from a single 2.1V to 5.5V supply at a typical quiescent supply current of 36µA. For additional power conservation, the MAX9636 and MAX9638 offer a low-power shutdown mode that reduces supply current to 1µA and places the amplifiers' outputs into a high-impedance state. The ICs are specified over the automotive operating temperature range (-40°C to +125°C). The single is offered in a space-saving, 6-pin SC70 package, while the dual is offered in tiny, 8-pin SC70 and 10-pin UTQFN packages.

Key Features Ideal for Precision Transimpedance Amplifier Applications Ultra-Low 0.1pA Bias Current Wide 1.5MHz Bandwidth Low Input Current-Noise Density: 0.9fA/√Hz Extend Battery Life Single-Supply Operation VDD = 2.1V to 5.5V Low 36µA Quiescent Current 1µA Quiescent Current in Shutdown Save Board Space 6- and 8-Pin SC70 and 10-Pin UTQFN Packages

MAX9636, MAX9637, MAX9638: Block Diagram Applications/Uses Battery-Powered Devices Piezoelectric Transducer Amplifiers Portable Medical Instruments Smoke Detectors Tablets Transimpedance Amplifiers

DataSheet

Parametrics

Design kits & evaluation modules

• MAX9636EVKIT
• MAX9638EVKIT

Quality and Environmental Data

• MAX9638.pdf

Ordering Information