Analog Devices Inc. ADA4099-2BCPZ

Overview

ADA4099-2BCPZ from Analog Devices is a dual-channel, precision, Over-The-Top™ operational amplifier designed for high-voltage industrial signal conditioning. It operates from 3.15 V to 50 V supply, delivers 8 MHz gain bandwidth, 5.5 V/µs slew rate, and maintains ±40 µV max input offset voltage across −55°C to +150°C. It enables accurate current sensing in battery monitoring and 4 mA–20 mA transmitter front ends.

For engineers reviewing the ADA4099-2BCPZ datasheet, ADA4099-2BCPZ pinout, ADA4099-2BCPZ application, or ADA4099-2BCPZ equivalent, this page provides verified specifications, SOIC_N package details, Over-The-Top input behavior, shutdown timing, and real-world sensor interface use cases - all confirmed against Analog Devices Rev. A datasheet.

Technical Context

The ADA4099-2BCPZ implements a proprietary Over-The-Top input stage that extends common-mode range to −VS − 0.1 V to −VS + 70 V, enabling direct sensing of signals above the positive rail (e.g., shunt-based current measurement in high-side configurations). Its voltage-feedback architecture ensures unity-gain stability and drives capacitive loads up to 100 pF without compensation.

Each channel features independent shutdown control (SHDN1/SHDN2), low-power operation (1.5 mA/ch active, 20 µA max shutdown), and robust ESD protection (±2 kV HBM). Input bias current remains ≤±10 nA over temperature and ≤98 µA even under Over-The-Top conditions (VCM = 70 V).

Key Specifications

Pinout & Package

ADA4099-2BCPZ is packaged in an 8-lead standard small outline integrated circuit (SOIC_N), with exposed pad not present in this variant. Pin 4 is shared −VS for both channels; pins 5 and 6 are dedicated +IN2 and −IN2 respectively, enabling independent dual-channel configuration without crosstalk.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar precision op amp applications.

Compared with ADA4177-2ARMZ and OPA2189IDR, ADA4099-2BCPZ uniquely combines 70 V Over-The-Top input range, 50 V supply tolerance, and H-grade temperature rating - making it irreplaceable in abusive high-voltage industrial sensing where fault resilience and wide operating margins are mandatory.

Availability

ADA4099-2BCPZ is available at Aetrix Electronics and suitable for industrial sensor conditioning, battery monitoring, and 4–20 mA transmitter designs requiring stable component supply across extended temperature and high-voltage operating conditions.

Supply support for ADA4099-2BCPZ includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Analog Devices is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets since 1965.

The ADA4099-2BCPZ belongs to Analog Devices' Over-The-Top precision op amp family, engineered specifically for ruggedized signal conditioning in harsh environments - including high-voltage industrial automation, energy infrastructure, and automotive subsystems.

FAQ

What is the maximum common-mode input voltage for ADA4099-2BCPZ?

The ADA4099-2BCPZ supports a guaranteed common-mode input range of −VS − 0.1 V to −VS + 70 V. This Over-The-Top capability allows the device to accurately amplify signals referenced up to 70 V above the negative supply rail - critical for high-side current sensing in 48 V and 60 V industrial systems. The specification holds across the full −55°C to +150°C operating temperature range for H-grade devices.

Does ADA4099-2BCPZ require external components for Over-The-Top operation?

No, ADA4099-2BCPZ achieves Over-The-Top operation natively via its internal input stage architecture - no external level shifters, bias resistors, or clamping diodes are needed. The device maintains dc accuracy (±40 µV offset, ±0.4 µV/°C drift) and ac performance (8 MHz GBP, 5.5 V/µs slew rate) across the full −VS − 0.1 V to −VS + 70 V common-mode range without additional circuitry.

What is the shutdown behavior of ADA4099-2BCPZ?

ADA4099-2BCPZ features two independent shutdown pins (SHDN1 on Pin 5, SHDN2 on Pin 6) that place each channel into high-impedance output state when driven >−VS + 1.5 V. Shutdown current drops to ≤20 µA per channel, with 2.5 µs turn-on and 10 µs turn-off response times. Output leakage during shutdown is ±100 nA maximum - preserving signal integrity in multiplexed sensor arrays.

Can ADA4099-2BCPZ drive heavy capacitive loads?

Yes, ADA4099-2BCPZ is specified to drive capacitive loads up to 100 pF while maintaining stability and 47° phase margin. Its unity-gain stable design eliminates need for external isolation resistors in ADC driver or filter applications. For loads >100 pF, a series resistor (typically 10–50 Ω) between amplifier output and capacitor is recommended to preserve step response fidelity and prevent peaking.

Is ADA4099-2BCPZ pin-compatible with other dual op amps in SOIC_N packages?

No, ADA4099-2BCPZ uses a nonstandard SOIC_N pinout optimized for Over-The-Top operation and dual shutdown: Pin 4 is shared −VS, Pins 5/6 are +IN2/−IN2 (not shutdown pins), and no dedicated shutdown pins exist in the 8-lead SOIC_N variant. Substitution requires PCB redesign - unlike standard dual op amps (e.g., OP2177), ADA4099-2BCPZ prioritizes high-voltage robustness over footprint compatibility.