AD7440 PDF Datasheet
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Description
This is (AD7440 / AD7450A) Differential Input / 1 MSPS 10-Bit and 12-Bit ADCs in an 8-Lead SOT-23. PRELIMINARY TECHNICAL DATA
a
Preliminary Technical Data
FEATURES Fast Throughput Rate: 1MSPS Specified for VDD of 3 V and 5 V Low Power at max Throughput Rate: 3.75 mW typ at 1MSPS with 3 V Supplies 9 mW typ at 1MSPS with 5 V Supplies Fully Differential Analog Input Wide Input Bandwidth: 70dB SINAD at 200kH- 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: 1 A max 8 Lead SOT-23 and MSOP Packages APPLICATIONS Transducer Interface Battery Powered Systems Data Acquisition Systems Portable Instrumentation Motor Control Communications GENERAL DESCRIPTION
Differential Input, 1MSPS, 12- & 10-Bit ADCs in 8-lead SOT-23 AD7450A, AD7440
FUNCTIONAL BLOCK DIAGRAM
VDD
VIN+ VINVREF
T, H
12-BIT SUCCESSIVE APPROXIMATION ADC
SCLK
AD7450A, AD7440
CONTROL LOGIC
SDATA +5
GND
The AD7450A, AD7440 are respectively 12- and 10-bit, high speed, low power, successive-appro.