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ADS1202

ACTIVE

Current-shunt delta-sigma modulator, 10MHz CLK, +/-250mV input, 16-bit resolution

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Data sheet

ADS1202

ACTIVE
Data sheet Order now

Product details

Resolution (Bits) 16 Number of input channels 1 Interface type Serial Architecture Delta-Sigma Modulator Input type Differential Rating Catalog Reference mode Internal Input voltage range (max) (V) 0.25 Input voltage range (min) (V) -0.25 Features Oscillator Operating temperature range (°C) -40 to 85 Power consumption (typ) (mW) 30 Analog supply (min) (V) 4.5 Analog supply voltage (max) (V) 5.5 SNR (dB) 70.5 Digital supply (min) (V) 4.5 Digital supply (max) (V) 5.5
Resolution (Bits) 16 Number of input channels 1 Interface type Serial Architecture Delta-Sigma Modulator Input type Differential Rating Catalog Reference mode Internal Input voltage range (max) (V) 0.25 Input voltage range (min) (V) -0.25 Features Oscillator Operating temperature range (°C) -40 to 85 Power consumption (typ) (mW) 30 Analog supply (min) (V) 4.5 Analog supply voltage (max) (V) 5.5 SNR (dB) 70.5 Digital supply (min) (V) 4.5 Digital supply (max) (V) 5.5
TSSOP (PW) 8 19.2 mm² 3 x 6.4
  • 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
  • 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.

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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ADS1203 ACTIVE Current-shunt delta-sigma modulator, 10MHz CLK, +/-250mV input, 16-bit resolution, ext ref option External reference, higher temperature range (-40 to 125C), INL max of 4 LSB
ADS1208 ACTIVE 10MHz Modulator With Built-in Current Excitation for Hall Sensors External reference, higher input range (0-5V), iDACs, INL max of 8 LSB
Similar functionality to the compared device
ADS1204 ACTIVE Four Delta-Sigma Modulators, 10MHz CLK, 0-5V Input, 16-Bit Resolution Higher channel count (4-Ch), single ended and differential input types, simultaneous sampling

Technical documentation

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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
Technical article System trade-offs when using delta-sigma modulators and digital filters 03 Feb 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

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Evaluation board

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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 (...)

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Support software

ADS1202REF — ADS1202 family FPGA software code examples

The ADS1202 reference design provides two isolated ADS1202 circuits for a variety of applications. It includes a Sinc3 filter implemented in a Xilinx® XC2S150 FPGA. Optional optocouplers can be used to provide electrical isolation.

The modular form factor of the reference design allows direct (...)

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Support software

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Supported products & hardware

Supported products & hardware

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Precision ADCs
ADS1202 — Current-shunt delta-sigma modulator, 10MHz CLK, +/-250mV input, 16-bit resolution
Hardware development
Support software
ADS1202REF — ADS1202 family FPGA software code examples
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Support software

SLAC056 — ADS1202 Reference Design DSP Software

Supported products & hardware

Supported products & hardware

Products
Precision ADCs
ADS1202 — Current-shunt delta-sigma modulator, 10MHz CLK, +/-250mV input, 16-bit resolution
Hardware development
Support software
ADS1202REF — ADS1202 family FPGA software code examples
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Supported products & hardware

Supported products & hardware

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AMC1106E05 — Small Basic Isolated Delta-Sigma Modulator With ±50mV Input and Manchester-Encoded CMOS Interface AMC1106M05 — ±50-mV input, precision current sensing basic isolated modulator AMC1203 — ±250-mV input, precision current sensing basic isolated modulator with int clock AMC1204 — ±250-mV input, precision current sensing basic isolated modulator AMC1204-Q1 — Automotive, ±250-mV input, precision current sensing basic isolated modulator AMC1210 — 4-channel digital filter for delta-sigma modulators AMC1303E0510 — ±50-mV input, current sensing reinforced isolated modulator with 10-MHz int clock & Manchester code AMC1303E0520 — ±50-mV input, current sensing reinforced isolated modulator with 20-MHz int clock & Manchester code AMC1303E2510 — ±250-mV input, current sensing reinforced isolated modulator with 10-MHz int clock & Manchester code AMC1303E2520 — ±250-mV input, current sensing reinforced isolated modulator with 20-MHz int clock & Manchester code AMC1303M0510 — ±50-mV input, precision current sensing reinforced isolated modulator with 10-MHz int clock AMC1303M0520 — ±50-mV input, precision current sensing reinforced isolated modulator with 20-MHz int clock AMC1303M2510 — ±250-mV input, precision current sensing reinforced isolated modulator with 10-MHz int clock AMC1303M2520 — ±250-mV input, precision current sensing reinforced isolated modulator with 20-MHz int clock AMC1304L05 — ±50-mV input, precision current sensing reinforced isolated modulator with LDO & LVDS interface AMC1304L05-Q1 — Automotive, ±50-mV input, current sensing reinforced isolated modulator with LDO & LVDS interface AMC1304L25 — ±250-mV input, precision current sensing reinforced isolated modulator with LDO & LVDS Interface AMC1304L25-Q1 — Automotive, ±250-mV input, current sensing reinforced isolated modulator with LDO & LVDS Interface AMC1304M05 — ±50-mV input, precision current sensing reinforced isolated modulator with LDO AMC1304M05-Q1 — Automotive, ±50-mV input, precision current sensing reinforced isolated modulator with LDO AMC1304M25 — ±250-mV input, precision current sensing reinforced isolated modulator with LDO AMC1304M25-Q1 — Automotive, ±250-mV input, precision current sensing reinforced isolated modulator with LDO AMC1305L25 — ±250-mV input, precision current sensing reinforced isolated modulator with LVDS interface AMC1305L25-Q1 — Automotive, ±250-mV input, current sensing reinforced isolated modulator with LVDS Interface AMC1305M05 — ±50-mV input, precision current sensing reinforced isolated modulator AMC1305M05-Q1 — Automotive, ±50-mV input, precision current sensing reinforced isolated modulator AMC1305M25 — ±250-mV input, precision current sensing reinforced isolated modulator AMC1305M25-Q1 — Automotive, ±250-mV input, precision current sensing reinforced isolated modulator AMC1306E05 — ±50-mV input, precision current sensing reinforced isolated modulator with Manchester code AMC1306E25 — ±250-mV input, precision current sensing reinforced isolated modulator with Manchester code AMC1306M05 — ±50-mV input, precision current sensing reinforced isolated modulator AMC1306M25 — ±250-mV input, precision current sensing reinforced isolated modulator AMC1336 — ±1-V input, precision voltage sensing reinforced isolated modulator AMC1336-Q1 — Automotive, ±1-V input, precision voltage sensing reinforced isolated delta-sigma modulator AMC3306M05 — ±50-mV input, precision current sensing reinforced isolated modulator with integrated DC/DC AMC3306M25 — ±250-mV input, precision current sensing reinforced isolated modulator with integrated DC/DC AMC3336 — ±1-V input, precision voltage sensing reinforced isolated modulator with integrated DC/DC AMC3336-Q1 — Automotive ±1-V input, precision voltage sensing reinforced isolated modulator with integrated DC/DC
Precision ADCs
ADS1201 — High Dynamic Range Delta-Sigma Modulator ADS1202 — Current-shunt delta-sigma modulator, 10MHz CLK, +/-250mV input, 16-bit resolution ADS1203 — Current-shunt delta-sigma modulator, 10MHz CLK, +/-250mV input, 16-bit resolution, ext ref option ADS1204 — Four Delta-Sigma Modulators, 10MHz CLK, 0-5V Input, 16-Bit Resolution ADS1205 — Two 1-Bit, 10MHz, 2nd-Order, Delta-Sigma Modulator ADS1208 — 10MHz Modulator With Built-in Current Excitation for Hall Sensors ADS1209 — 16-Bit, 10MHz, 2-Ch, Delta-Sigma Modulator AMC1035 — Precision delta-sigma modulator with ±1-V bipolar input and 2.5-V reference output AMC1035-Q1 — Automotive precision delta-sigma modulator with ±1-V bipolar input and 2.5-V reference output
Hardware development
Evaluation board
AMC1304L25EVM — AMC1304L25 Evaluation Module
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Simulation tool

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PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
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Simulation tool

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TSSOP (PW) 8 View options
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