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-approximation (SAR) analog-to-digital converters that feature a fully differential analog input.These parts operate from a single 3 V or 5 V power supply and feature throughput rates up to 1MSPS.
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 200kHz Input Frequency Flexible Power/Serial Clock Speed Management No Pipeline Delays High Speed Serial Interface - SPI TM /QSPI TM /.