Analog Devices Inc. AD7960BCPZ-RL7

Overview

AD7960BCPZ-RL7 from Analog Devices is an 18-bit, 5 MSPS charge redistribution successive approximation register (SAR) analog-to-digital converter with true differential input, ±4.096 V or ±5 V input range, and LVDS serial interface. It delivers 99 dB SNR, ±0.8 LSB typical INL, and zero pipeline latency-enabling high-fidelity digitization in MRI gradient control and digital X-ray acquisition systems.

For engineers reviewing the AD7960BCPZ-RL7 datasheet, AD7960BCPZ-RL7 pinout, AD7960BCPZ-RL7 application, or AD7960BCPZ-RL7 equivalent, key selection criteria include throughput vs. power trade-offs (39–64.5 mW), echo/self-clocked LVDS interface mode selection, reference buffer enable/disable configuration, and thermal stability across −40°C to +85°C operation.

Technical Context

The AD7960BCPZ-RL7 implements a fully differential SAR architecture with no pipeline delay, enabling real-time sampling for time-critical applications like computed tomography and spectroscopy. Its internal conversion clock, configurable reference buffer (2.048 V → 4.096 V or external 4.096 V/5 V), and dual-mode CNV± control (LVDS or CMOS) support flexible system integration.

It features a 28 MHz (EN2 = 0) or 9 MHz (EN2 = 1) −3 dB input bandwidth, aperture jitter of 1 ps, and oversampled dynamic range up to 120 dB at OSR = 256-making it suitable for high-resolution DC-coupled and wideband AC signal acquisition where linearity and noise floor are critical.

Key Specifications

Pinout & Package

AD7960BCPZ-RL7 is housed in a 32-lead, 5 mm × 5 mm LFCSP (QFN) package with exposed pad (EP) for thermal management. Pin assignments follow standard Analog Devices LFCSP layout with dedicated analog/digital supplies, differential LVDS I/O, and configurable enable/control pins.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-speed, high-resolution ADC applications.

Compared with AD7961BCPZ-RL7 and AD7982BRUZ, AD7960BCPZ-RL7 uniquely combines 18-bit resolution, 5 MSPS throughput, true differential LVDS interface, and zero-latency SAR architecture-making it irreplaceable in applications demanding simultaneous high speed, high fidelity, and deterministic timing.

Availability

AD7960BCPZ-RL7 is available at Aetrix Electronics and suitable for digital imaging systems, MRI gradient control, and high-speed data acquisition requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for AD7960BCPZ-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 leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving precision instrumentation, industrial automation, and medical electronics markets.

The AD7960 belongs to Analog Devices' PulSAR® family of high-speed SAR ADCs, designed specifically for applications demanding both high resolution and high throughput-such as medical imaging, scientific instrumentation, and automated test equipment.

FAQ

What is the maximum throughput rate supported by the AD7960BCPZ-RL7?

The AD7960BCPZ-RL7 supports a maximum throughput rate of 5 MSPS, corresponding to a minimum conversion cycle time of 200 ns. This is achievable in both self-clocked and echoed clock LVDS interface modes, with timing validated across the full −40°C to +85°C operating temperature range per the official datasheet Rev. C specifications.

Does the AD7960BCPZ-RL7 include an internal reference buffer?

Yes, the AD7960BCPZ-RL7 includes an internal reference buffer that can generate a 4.096 V output from a 2.048 V input applied to the REFIN pin. The buffer is enabled or disabled via the EN0–EN3 configuration pins; when enabled, it adds ~18 mW to total power dissipation but eliminates need for external reference buffering circuitry.

What are the supported analog input voltage ranges for the AD7960BCPZ-RL7?

The AD7960BCPZ-RL7 supports two true differential input voltage ranges: ±4.096 V (with 4.096 V reference) or ±5 V (with 5 V reference). The input pins (IN+, IN−) swing 180° out of phase between 0 V and the selected reference voltage, and the common-mode voltage is internally set to VCM = REF/2.

How does the LVDS interface of the AD7960BCPZ-RL7 operate in self-clocked versus echoed clock mode?

In self-clocked mode (DCO+ grounded), the AD7960BCPZ-RL7 outputs a 20-bit frame (2-bit header + 18-bit data) with built-in synchronization; in echoed clock mode (DCO± active), DCO± replicates CLK± and data is sampled on the rising edge of DCO+. Both modes use LVDS signaling compliant with ANSI-644, supporting noise-immune communication over longer traces.

Is the AD7960BCPZ-RL7 pin-compatible with other PulSAR® ADCs like the AD7961BCPZ-RL7?

Yes, the AD7960BCPZ-RL7 and AD7961BCPZ-RL7 share identical 32-lead LFCSP (5 mm × 5 mm) packaging and pinout-including matching VDD1/VDD2/VIO, IN+/IN−, CNV±, D±, DCO±, CLK±, REF, and EN0–EN3 assignments-enabling drop-in replacement where 16-bit resolution is acceptable and system firmware supports the reduced word length.