ADA4097-2HCPZ-RL7

Overview

The ADA4097-2HCPZ-RL7 is a dual-channel, precision operational amplifier manufactured by Analog Devices Inc. It features an ultrawide common-mode input range extending from −VS to +VS and beyond, supporting Over-The-Top operation up to 70 V relative to the negative supply. The device operates on a wide power supply voltage range of +3 V to +50 V (±25 V for PSRR) with a typical low power supply current of 32.5 µA per channel. Key electrical specifications include a maximum input offset voltage of ±60 µV, a gain-bandwidth product of 130 kHz, and a slew rate of 0.1 V/µs. It offers high CMRR and PSRR, input overdrive tolerance without phase reversal, and robust ESD protection. The H-grade variant supports an extended operating temperature range from −55°C to +150°C.

Feature Summary

• Over-The-Input Capability: Inputs operate from −VS to +VS and beyond, tolerating voltages up to 70 V above the negative rail without phase reversal or damage.
• Precision Performance: Features low input offset voltage (±60 µV max), low drift (±1 µV/°C max for B grade), and low noise characteristics suitable for sensitive signal conditioning.
• Robust Protection: Includes high electrostatic discharge ratings (±2 kV HBM, ±1.25 kV FICDM) and thermal shutdown protection to ensure reliability in abusive environments.
• Low Power Shutdown: Available in specific packages with a dedicated shutdown pin that reduces supply current to a maximum of 20 µA when activated.

Applications

• Industrial sensor conditioning
• Supply current sensing
• Battery and power supply monitoring
• Front-end amplifiers in abusive environments
• 4 mA to 20 mA transmitters

Procurement Notes

Verify the exact ordering suffix against the manufacturer's official documentation to confirm package type and temperature grade. The 'H' designation indicates the extended temperature range (-55°C to +150°C). Confirm availability status as components may be subject to limited supply or discontinuation notices. Ensure compatibility with your PCB footprint, specifically the LFCSP package dimensions if applicable.

Selection Notes

Select this component for applications requiring high-voltage common-mode input ranges and precision amplification in harsh environments. The dual-channel configuration is ideal for differential sensing or multi-channel data acquisition systems. Consider the shutdown feature if power conservation is critical during idle periods. Ensure the load requirements do not exceed the specified short-circuit current limits and capacitive drive capabilities.

Part Context

The ADA4097-2 is part of the ADA4097 family of robust, precision op amps designed for industrial applications. It complements the single-channel ADA4097-1. The HCPZ-RL7 suffix denotes the dual-channel version in a Lead-frame Chip-Scale Package (LFCSP) with reel packaging and the H-grade temperature rating. This series addresses the need for high-voltage interface solutions in modern industrial instrumentation.

Replacement Considerations

Check for direct substitutes within the ADA4097 family or other Analog Devices high-voltage precision op amps. Verify pinout compatibility and electrical parameter equivalence, particularly regarding the Over-The-Top input range and supply voltage limits. Ensure any replacement maintains the required temperature grade and package dimensions for your existing design.

FAQ

What is the maximum common-mode input voltage relative to the negative supply?

The common-mode input range extends from −VS to −VS + 70 V, allowing the inputs to operate significantly above the positive supply rail.

Does the device support shutdown functionality?

Yes, the ADA4097-2 in the 10-lead LFCSP package includes SHDNx pins that allow the amplifier to be placed in a low-power shutdown state, reducing supply current to a maximum of 20 µa.

What is the operating temperature range for the H-grade variant?

The H-grade variant supports an extended operating temperature range from −55°C to +150°C.