Low-Power/ Serial 16-Bit Sampling ANALOG-TO-DIGITAL CONVERTER
ADS7813
ADS7813
ADS7813
SBAS043C – MARCH 1997 – REVISED SEPTEMBER 2005
Low-Power, Serial 16-Bit Sampling ANALOG-TO-DI...
Description
ADS7813
ADS7813
ADS7813
SBAS043C – MARCH 1997 – REVISED SEPTEMBER 2005
Low-Power, Serial 16-Bit Sampling ANALOG-TO-DIGITAL CONVERTER
FEATURES
q 20µs max CONVERSION TIME q SINGLE +5V SUPPLY OPERATION q PIN-COMPATIBLE WITH 12-BIT ADS7812 q EASY-TO-USE SERIAL INTERFACE q 0.3" DIP-16 AND SO-16 q ±2.0LSB max INL q 87dB min SINAD q USES INTERNAL OR EXTERNAL
REFERENCE q MULTIPLE INPUT RANGES q 35mW max POWER DISSIPATION q NO MISSING CODES q 50µW POWER DOWN MODE
DESCRIPTION
The ADS7813 is a low-power, single +5V supply, 16-bit sampling analog-to-digital (A/D) converter. It contains a complete 16-bit capacitor-based SAR A/D with a sample/hold, clock, reference, and serial data interface.
The converter can be configured for a variety of input ranges including ±10V, ±5V, 0V to 10V, and 0.5V to 4.5V. A high impedance 0.3V to 2.8V input range is also available (input impedance > 10MΩ). For most input ranges, the input voltage can swing to +16.5V or –16.5V without damage to the converter.
A flexible SPI-compatible serial interface allows data to be synchronized to an internal or external clock. The ADS7813 is specified at a 40kHz sampling rate over the –40°C to +85°C temperature range. It is available in a 0.3" DIP-16 or an SO-16 package.
APPLICATIONS
q MEDICAL INSTRUMENTATION
q DATA ACQUISITION SYSTEMS
q ROBOTICS
q INDUSTRIAL CONTROL
q TEST EQUIPMENT
q DIGITAL SIGNAL PROCESSING
q DSP SERVO CONTROL
R1IN R2IN
40kΩ(1) 8kΩ(1)
R3IN
20kΩ(1)
BUF
CAP
REF
BUSY
PWRD
CONV
CS
...
Similar Datasheet