AD7854L
FEATURES
Specified for VDD of 3 V to 5.5 V Read-Only Operation AD7854- 200 k SPS; AD7854L- 100 k SPS System and Self-Calibration Low Power Normal Operation AD7854: 15 m W (VDD = 3 V) AD7854L: 5.5 m W (V DD = 3 V) Automatic Power-Down After Conversion (25 W) AD7854: 1.3 m W 10 k SPS AD7854L: 650 W 10 k SPS Flexible Parallel Interface 12-Bit Parallel/8-Bit Parallel (AD7854) 28-Lead DIP, SOIC and SSOP Packages (AD7854) APPLICATIONS Battery-Powered Systems (Personal Digital Assistants, Medical Instruments, Mobile munications) Pen puters Instrumentation and Control Systems High Speed Modems
3 V to 5 V Single Supply, 200 k SPS 12-Bit Sampling ADCs AD7854/AD7854L-
FUNCTIONAL BLOCK DIAGRAM
AVDD AGND AIN(+) T/H AIN(- ) 2.5V REFERENCE REFIN/ REFOUT P BUF DGND CREF1 CHARGE REDISTRIBUTION DAC CLKIN CREF2 CALIBRATION MEMORY AND CONTROLLER SAR + ADC CONTROL CONVST BUSY DVDD
AD7854/AD7854L
PARALLEL INTERFACE/CONTROL REGISTER
DB11- DB0
HBEN
GENERAL DESCRIPTION
PRODUCT HIGHLIGHTS
The...
