AD7631BSTZ

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AD7631BSTZ

+BOM

IC ADC 18BIT SAR 48LQFP

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Specifications

Attribute Value
Package / Case Bulk,Tray
Series PulSAR®
Part Status Active
Number of Bits 18
Sampling Rate(Per Second) 250k
Number of Inputs 1
Input Type Differential
Data Interface SPI, Parallel, DSP
Configuration S/H-ADC
Ratio - S / H: ADC 1:1
Number of A/D Converters 1
Architecture SAR
Reference Type External, Internal
Voltage - Supply, Analog 5V
Voltage - Supply, Digital 5V
Operating Temperature -40°C ~ 85°C
Supplier Device Package 48-LQFP (7x7)

Overview

Description

The AD7631BSTZ is a 16-bit, 1 MSPS, successive approximation register (SAR) analog-to-digital converter (ADC) from Analog Devices. It features ±0.5 LSB INL and ±0.5 LSB DNL for high accuracy, with no missing codes.
Key features:
- 1 MSPS throughput with low power consumption (50 mW at 1 MSPS).
- Single 5 V supply operation.
- On-chip reference & buffer for simplified design.
- Parallel & serial (SPI/QSPI) interfaces for flexible connectivity.
- Wide input range: ±10 V, ±5 V, or 0 to +10 V (software-selectable).
Applications include industrial automation, medical instrumentation, and data acquisition systems. The BSTZ suffix denotes a LQFP-48 package with an industrial temperature range (-40°C to +85°C).
For detailed specs, refer to the datasheet on Analog Devices' website.

Equivalent

Equivalent products to the AD7631BSTZ (16-bit, 250 kSPS SAR ADC) include:
- AD7634 (16-bit, 250 kSPS, higher channel count)
- LTC1867 (16-bit, 250 kSPS, similar performance)
- ADS8860 (16-bit, 1 MSPS, faster alternative)
- MAX11156 (16-bit, 500 kSPS, lower power)
These offer comparable resolution and speed. Check datasheets for pin compatibility and specific features.

Features

The AD7631BSTZ is a 16-bit, 1 MSPS successive approximation register (SAR) ADC with the following key features:
- Resolution: 16-bit
- Sampling Rate: 1 MSPS
- Input Range: ±10V, ±5V, or 0 to +10V (software-selectable)
- Interface: Parallel or serial (SPI/QSPI-compatible)
- Power Supply: ±5V (analog), +2.5V to +5.25V (digital)
- Power Consumption: 100 mW (typical)
- DNL: ±0.5 LSB (max)
- INL: ±1.5 LSB (max)
- On-Chip Reference: 2.5V with buffer
- Operating Temp: -40°C to +85°C
- Package: 48-lead LQFP
Ideal for high-speed, high-precision applications like industrial control, medical imaging, and data acquisition.

Pinout

The AD7631BSTZ is a 16-bit, 1 MSPS successive approximation register (SAR) ADC.
- Pin Count: 48 (LQFP package)
- Key Functions:
- Analog Input: Single-ended or differential (16-bit resolution)
- Reference Input: Internal/external reference support
- Digital Interface: Parallel (16-bit) or serial (SPI-compatible)
- Power Supply: +5V (analog), +2.7V to +5.25V (digital)
- Control Pins: CNVST (conversion start), BUSY (status)
Designed for high-speed, precision applications like industrial and medical systems.

Manufacturer

The AD7631BSTZ is manufactured by Analog Devices, Inc. (ADI), a leading global semiconductor company specializing in high-performance analog, mixed-signal, and digital signal processing (DSP) integrated circuits. Founded in 1965 and headquartered in Norwood, Massachusetts, ADI serves industries like automotive, healthcare, industrial automation, and communications. The company is renowned for its precision data converters, amplifiers, and power management ICs, with the AD7631BSTZ being a 16-bit, 250 kSPS successive-approximation register (SAR) ADC. ADI emphasizes innovation, reliability, and cutting-edge technology in its product portfolio.

Application

The AD7631BSTZ is a 16-bit, 1 MSPS SAR ADC used in high-precision applications. Key areas include:
- Medical Imaging: MRI, CT scanners, and ultrasound systems.
- Industrial Automation: Data acquisition, process control, and instrumentation.
- Communications: Base stations and spectrum analysis.
- Test & Measurement: Oscilloscopes and signal analyzers.
- Defense/Aerospace: Radar, sonar, and avionics systems.
Its high speed, accuracy, and low power make it ideal for demanding signal processing tasks.

Package

The AD7631BSTZ comes in a 48-lead LQFP (Low-Profile Quad Flat Package). This surface-mount package measures 7mm x 7mm and is suitable for high-performance applications. It offers robust thermal and electrical performance, making it ideal for precision analog-to-digital converters. The LQFP package ensures compact integration while maintaining reliability in industrial and automotive environments.

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