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
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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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Supported products & hardware

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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
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Package Pins Download
TSSOP (PW) 8 View options

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