Analog Devices Inc. AD4696BCPZ-RL7

Overview

AD4696BCPZ-RL7 from Analog Devices is a 16-bit, 16-channel, 1 MSPS multiplexed SAR ADC with Easy Drive architecture, integrated oversampling and decimation, on-chip threshold detection, and autonomous conversion mode. It operates from a single 2.7 V to 5.5 V analog supply, delivers ±1.0 LSB INL max, 93 dB SINAD at 1 kHz, and supports unipolar/pseudobipolar input ranges up to ±VREF/2 - deployed in photodiode monitoring and medical instrumentation systems.

For engineers reviewing the AD4696BCPZ-RL7 datasheet, AD4696BCPZ-RL7 pinout, AD4696BCPZ-RL7 application, or AD4696BCPZ-RL7 equivalent, key selection considerations include its 1 MSPS sample rate, 32-lead 5 mm × 5 mm LFCSP package, 1.14–1.98 V logic interface, −40°C to +125°C operating range, and support for low-SPI-clock-rate dual-/quad-SDO modes in space-constrained precision data acquisition designs.

Technical Context

The AD4696BCPZ-RL7 implements a true 16-bit SAR core with no missing codes and integrates a 16-channel low-crosstalk multiplexer, customizable channel sequencer, and overvoltage protection clamps (±5 mA per input). Its Easy Drive architecture enables analog input high-Z and reference input high-Z modes, eliminating need for external high-speed drivers or reference buffers in many configurations.

Digital functionality includes on-chip oversampling (OSR = 1–64), decimation, offset/gain correction registers, threshold detection with alert indicators, and autocycle mode for interrupt-driven firmware. The device uses a standard SPI interface with configurable SDO modes and supports 1.14–1.98 V I/O voltage, enabling direct interfacing with ultra-low-voltage microcontrollers.

Key Specifications

Pinout & Package

AD4696BCPZ-RL7 is housed in a 32-lead, 5 mm × 5 mm lead frame chip scale package (LFCSP) with exposed thermal pad. Pin functions are defined per Analog Devices' Rev. B datasheet, Figure 14 (Pin Configuration and Function Descriptions).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar multichannel precision ADC applications.

Compared with AD4695BCPZ-RL7, the AD4696BCPZ-RL7 delivers double the throughput (1 MSPS vs. 500 kSPS) with identical power efficiency scaling and package compatibility; versus AD7616BSTZ, it offers superior noise performance via oversampling, lower system component count via Easy Drive, and embedded intelligence for event-driven sensing - at the cost of narrower input voltage range.

Availability

AD4696BCPZ-RL7 is available at Aetrix Electronics and suitable for photodiode monitoring, medical instrumentation, and automated test equipment requiring stable component supply, long-term lifecycle support, and guaranteed authentic sourcing from Analog Devices.

Supply support for AD4696BCPZ-RL7 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, Inc. is a global semiconductor company specializing in high-performance analog, mixed-signal, and digital signal processing technologies for precision measurement and control.

The AD4696BCPZ-RL7 belongs to the Easy Drive precision SAR ADC product line, engineered for multichannel, space-constrained, low-power data acquisition systems where analog front-end simplification and embedded digital intelligence reduce system-level design complexity.

FAQ

What is the maximum sample rate supported by the AD4696BCPZ-RL7?

The AD4696BCPZ-RL7 supports a maximum sample rate of 1 MSPS in conversion mode with autocycle disabled. This is confirmed in the Rev. B datasheet Table 1 under "Sampling Dynamics" and distinguishes it from the AD4695BCPZ-RL7 (500 kSPS). At 1 MSPS, the AD4696BCPZ-RL7 maintains ±1.0 LSB INL and 93 dB SINAD, enabling high-fidelity capture of fast transient signals across all 16 channels.

Does the AD4696BCPZ-RL7 include an internal reference buffer?

No, the AD4696BCPZ-RL7 does not include an internal reference buffer. Per the Rev. B datasheet General Description and Specifications sections, the on-chip reference buffer is exclusive to the WLCSP variant (e.g., AD4696BCPZ-RL7 is LFCSP; AD4696WBCPZ-RL7 is WLCSP). The AD4696BCPZ-RL7 requires an external buffered reference source applied to the REF pin, though its reference input high-Z mode reduces drive requirements to just 12 µA at 1 MSPS.

What package type is used for the AD4696BCPZ-RL7?

The AD4696BCPZ-RL7 uses a 32-lead, 5 mm × 5 mm lead frame chip scale package (LFCSP) with exposed thermal pad, as specified in the Ordering Guide and Outline Dimensions sections of the Rev. B datasheet. This package supports high channel density in compact PCB layouts and provides thermal performance suitable for operation from −40°C to +125°C without derating.

Can the AD4696BCPZ-RL7 operate with a 1.2 V digital I/O supply?

Yes, the AD4696BCPZ-RL7 supports VIO from 1.14 V to 1.98 V, making 1.2 V fully compliant. The Rev. B datasheet specifies this range in the "Digital Inputs" section and confirms logic compatibility down to 1.14 V. At 1.2 V, VIH minimum is 0.84 V and VIL maximum is 0.36 V - enabling direct interface with 1.2 V microcontrollers without level translation.

How does the Easy Drive feature reduce system component count in designs using the AD4696BCPZ-RL7?

The Easy Drive feature in the AD4696BCPZ-RL7 reduces system component count by enabling analog input high-Z mode (<6 µA input current at 1 MSPS) and reference input high-Z mode (12 µA at 1 MSPS), eliminating the need for external high-speed op-amp drivers and reference buffers in most configurations. This is validated in the Rev. B datasheet's "Easy Drive" features list and "Analog Front-End Design" section, where simplified AFE topologies are demonstrated using only RC filters and passive components.