Texas Instruments ADS1202 Data Handbook/Manual
Summary
The ADS1202 is a high-precision 16-bit Sigma-Delta Analog-to-Digital Converter designed for robust industrial measurement in challenging environments. This technical guide provides comprehensive details on its operation, featuring reliable performance from a single +5V supply and ideal differential input handling. Professionals in industrial process control, motor management, smart transmitter development, and weight scale applications will find detailed specifications covering resolution, linearity, power ratings, and diverse operational modes for seamless integration into demanding systems.
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ADS1202
SBAS275 – DECEMBER 2002
Motor Control Current Shunt
1-Bit, 10MHz, 2nd-Order, Delta-Sigma Modulator FEATURES DESCRIPTION
16-BIT RESOLUTION The ADS1202 is a precision, 80d B dynamic range, delta- sigma (∆∑) modulator operating from a single +5V supply.
13-BIT LINEARITY
The differential inputs are ideal for direct connections to
RESOLUTION/SPEED TRADE-OFF:
transducers or low-level signals. With the appropriate digital
10-Bit Effective Resolution with 20µs Signal
filter and modulator rate, the device can be used to achieve
Delay (12-bit with 77µs)
16-bit Analog-to-Digital (A/D) conversion with no missing ±250m V INPUT RANGE WITH SINGLE 5V SUPPLY codes. Effective resolution of 12 bits can be maintained with a digital filter bandwidth of 10k Hz at a modulator rate of
2% INTERNAL REFERENCE VOLTAGE
10MHz. The ADS1202 is designed for use in medium reso-
2% GAIN ERROR
lution measurement applications including current measure- FLEXIBLE SERIAL INTERFACE WITH FOUR ments, smart transmitters, industrial process control, weigh DIFFERENT MODES scales, chromatography, and portable instrumentation. It is available in a TSSOP-8 package.
IMPLEMENTED TWINNED BINARY CODING AS SPLIT PHASE OR MANCHESTER CODING FOR ONE LINE INTERFACING OPERATING TEMPERATURE RANGE: –40°C to +85°C
APPLICATIONS MOTOR CONTROL
VIN+ MDAT
2nd-Order
CURRENT MEASUREMENT ∆∑ Modulator
VIN– MCLK
INDUSTRIAL PROCESS CONTROL
INSTRUMENTATION Interface
RC Oscillator
Circuit
20MHz
VDD M0
SMART TRANSMITTERS
GND M1
PORTABLE INSTRUMENTS Reference
Buffer Voltage
WEIGHT SCALES 2.5V
PRESSURE TRANSDUCERS
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date. Copyright © 2002, Texas Instruments Incorporated Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters.
www.ti.com
Page Summary Contents For Texas Instruments ADS1202 Data Handbook/Manual
Manual Details
| Brand | Texas Instruments |
|---|---|
| Pages | 21 |
| File Size | 308.87 KB |
| Published | June 04, 2026 |
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Frequently Asked Questions
What are the primary applications for the ADS1202?
It is suitable for motor control, current measurement, industrial process control, and smart transmitter applications.
How is the device powered and what is its resolution?
The chip operates from a single +5V supply and features an 80dB dynamic range sigma-16-BIT modulator.
What are the required differential input ranges for analog signals?
The recommended operating condition for the analog input voltage range is –250mV to +250mV.
What precautions must be taken when handling this integrated circuit?
Users must take appropriate precautions regarding electrostatic discharge (ESD) as failure to observe proper handling can cause damage.