AD7451 Datasheet PDF | Analog Devices

Analog Devices AD7451

The AD7451/AD7441 are respectively 12- and 10-bit, high speed, low power, successive-approximation (SAR) analog-to-digital converters that feature a pseudo differential analog input. These parts operate from a single 2.7 V to 5.25 V power supply and feature throughput rates up to 1MSPS. The parts contains a low-noise, wide bandwidth, differential track and hold amplifier (T/H) which can handle input frequencies in excess of 1MHz with the -3dB point being 20MHz typically.

Part No.	AD7451
Datasheet	AD7451 Download
Manufacturer	Analog Devices
Description	ADC
Buy	Stock & Price

FEATURES

Fast Throughput Rate: 1MSPS Specified for VDD of 2.7 V to 5.25 V Low Power at max Throughput Rate: 3.75 mW typ at 1MSPS with VDD = 3 V 9 mW typ at 1MSPS with VDD = 5 V Pseudo Differential Analog Input Wide Input Bandwidth: 70dB SINAD at 300kHz Input Frequency Flexible Power/Serial Clock Speed Management No Pipeline Delays High Speed Serial Interface - SPI TM /QSPI TM / MICROWIRE T M / DSP Compatible Power-Down Mode: 1µA max 8 Pin SOT-23 and µSOIC Packages

APPLICATIONS

Transducer Interface Battery Powered Systems Data Acquisition Systems Portable Instrumentation Motor Control Communications

GENERAL DESCRIPTION

Pseudo Differential, 1MSPS, 12- & 10-Bit ADCs in 8-lead SOT-23 AD7451/AD7441 FUNCTIONAL BLOCK DIAGRAM VDD VIN+ VINVREF T/H 12-BIT SUCCESSIVE APPROXIMATION ADC SCLK AD7451/ AD7441 CONTROL LOGIC SDATA +5 GND The reference voltage is 2.5 V and is applied externally to the VREF pin. The conversion process and data acquisition are controlled using CS and the serial clock allowing the device to interface with Microprocessors or DSPs.