ADS1203
Current-shunt delta-sigma modulator, 10MHz CLK, +/-250mV input, 16-bit resolution, ext ref option
ADS1203
- 16-Bit Resolution
- 14-Bit Linearity
- ±250mV Input Range with Single +5V Supply
- 1% Internal Reference Voltage
- 1% 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 +125°C - APPLICATIONS
- Motor Control
- Current Measurement
- Industrial Process Control
- Instrumentation
- Smart Transmitters
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The ADS1203 is a delta-sigma () modulator with a 95dB dynamic range, operating from a single +5V supply. The differential inputs are ideal for direct connection 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. An effective resolution of 14 bits or SNR of 85dB (typical) can be maintained with a digital filter bandwidth of 40kHz at a modulator rate of 10MHz. The ADS1203 is designed for use in medium- to high-resolution measurement applications including current measurements, smart transmitters, and industrial process control. The ADS1203 is available in TSSOP-8 and QFN-16 (3x3) packages.
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Technical documentation
Type | Title | Date | ||
---|---|---|---|---|
* | Data sheet | Motor Control, Current Measurement, 1-Bit, 10MHz, 2nd-Order, Delta-Sig Modulator datasheet (Rev. C) | 09 Jan 2008 | |
Application note | QFN and SON PCB Attachment (Rev. C) | PDF | HTML | 06 Dec 2023 | |
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.
AMC1210MB-EVM — AMC1210 motherboard evaluation module
The AMC1210MB-EVM is a complete evaluation kit for the AMC1210 & ADS1205 in resolver applications and part of a modular evaluation system for evaluating TI delta-sigma modulators. The AMC1210MB-EVM software allows use of the AMC1210 in a variety of configurations for resolver and current shunt (...)
ADS1202REF — ADS1202 family FPGA software code examples
The modular form factor of the reference design allows direct (...)
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 |
VQFN (RGT) | 16 | Ultra Librarian |
Ordering & quality
- RoHS
- REACH
- Device marking
- Lead finish/Ball material
- MSL rating/Peak reflow
- MTBF/FIT estimates
- Material content
- Qualification summary
- Ongoing reliability monitoring
- Fab location
- Assembly location
Recommended products may have parameters, evaluation modules or reference designs related to this TI product.
Support & training
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