ADS1202
Current-shunt delta-sigma modulator, 10MHz CLK, +/-250mV input, 16-bit resolution
ADS1202
- 16-BIT RESOLUTION
- 13-BIT LINEARITY
- RESOLUTION/SPEED TRADE-OFF:
10-Bit Effective Resolution with 20 µs Signal
Delay (12-bit with 77 µs) - ±250mV INPUT RANGE WITH SINGLE 5V SUPPLY
- 2% INTERNAL REFERENCE VOLTAGE
- 2% GAIN ERROR
- FLEXIBLE SERIAL INTERFACE WITH FOUR DIFFERENT MODES
- 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
- CURRENT MEASUREMENT
- INDUSTRIAL PROCESS CONTROL
- INSTRUMENTATION
- SMART TRANSMITTERS
- PORTABLE INSTRUMENTS
- WEIGHT SCALES
- PRESSURE TRANSDUCERS
The ADS1202 is a precision, 80dB dynamic range, delta-sigma () modulator operating from a single +5V supply. The differential inputs are ideal for direct connections to transducers or low-level signals. With the appropriate digital filter and modulator rate, the device can be used to achieve 16-bit Analog-to-Digital (A/D) conversion with no missing codes. Effective resolution of 12 bits can be maintained with a digital filter bandwidth of 10kHz at a modulator rate of 10MHz. The ADS1202 is designed for use in medium resolution measurement applications including current measurements, smart transmitters, industrial process control, weigh scales, chromatography, and portable instrumentation. It is available in a TSSOP-8 package.
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Technical documentation
Type | Title | Date | ||
---|---|---|---|---|
* | Data sheet | ADS1202: Motor Control Current Shunt, 1-Bit, 10MHz, 2nd-Order D-S Modulator datasheet (Rev. B) | 12 Jul 2004 | |
Application note | Digital Filter Types in Delta-Sigma ADCs (Rev. A) | PDF | HTML | 29 Mar 2023 | |
Analog Design Journal | How delta-sigma ADCs work, Part 1 (Rev. A) | 19 Sep 2016 | ||
E-book | Best of Baker's Best: Precision Data Converters -- Delta-Sigma ADCs | 19 Mar 2015 | ||
Analog Design Journal | How delta-sigma ADCs work, Part 2 | 09 Nov 2011 | ||
Application note | Using the ADS1202 Reference Design | 19 Nov 2003 | ||
Application note | Clock Divider Circuit for the ADS1202 in Mode 3 Operation | 15 Sep 2003 | ||
Application note | Interfacing the ADS1202 Modltr With a Pulse Transformer in Galvanically Isolated | 02 Jun 2003 | ||
Application note | Combining ADS1202 with FPGA Digital Filter for Current Msrmnt in Motor Cntrl App | 28 Apr 2003 | ||
Application note | Choosing an Optocoupler for the ADS1202 Operating in Mode 1 | 12 Feb 2003 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.
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The modular form factor of the reference design allows direct (...)
SLAC056 — ADS1202 Reference Design DSP Software
Supported products & hardware
Products
Precision ADCs
Hardware development
Support software
ANALOG-ENGINEER-CALC — PC software analog engineer's calculator
The analog engineer’s calculator is designed to speed up many of the repetitive calculations that analog circuit design engineers use on a regular basis. This PC-based tool provides a graphical interface with a list of various common calculations ranging from setting operational-amplifier (...)
Supported products & hardware
Products
Precision op amps (Vos<1mV)
General-purpose op amps
Audio op amps
Transimpedance amplifiers
High-speed op amps (GBW ≥ 50 MHz)
Power op amps
Video amplifiers
Line drivers
Transconductance amplifiers & laser drivers
Fully differential amplifiers
Precision ADCs
Biosensing AFEs
High-speed ADCs (≥10 MSPS)
Receivers
Touchscreen controllers
Difference amplifiers
Instrumentation amplifiers
Audio line receivers
Analog current-sense amplifiers
Digital power monitors
Analog current-sense amplifiers with integrated shunt resistor
Digital power monitors with integrated shunt resistor
Die & wafer services
SBAR010 — Delta Sigma Modulator Filter Calculator
Supported products & hardware
Products
Isolated ADCs
Precision ADCs
Hardware development
Evaluation board
PSPICE-FOR-TI — PSpice® for TI design and simulation tool
TINA-TI — SPICE-based analog simulation program
Package | Pins | CAD symbols, footprints & 3D models |
---|---|---|
TSSOP (PW) | 8 | Ultra Librarian |
Ordering & quality
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- Device marking
- Lead finish/Ball material
- MSL rating/Peak reflow
- MTBF/FIT estimates
- Material content
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- Ongoing reliability monitoring
- Fab location
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Support & training
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