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ADS1205

ACTIVE

Two 1-Bit, 10MHz, 2nd-Order, Delta-Sigma Modulator

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Data sheet

ADS1205

ACTIVE
Data sheet Order now

Product details

Resolution (Bits) 16 Number of input channels 2 Interface type Serial Architecture Delta-Sigma Modulator Input type Differential, Single-ended Multichannel configuration Simultaneous Sampling Rating Catalog Reference mode External, Internal Input voltage range (max) (V) 5 Input voltage range (min) (V) 0 Features Oscillator Operating temperature range (°C) -40 to 85 Power consumption (typ) (mW) 59 Analog supply (min) (V) 4.5 Analog supply voltage (max) (V) 5.5 SNR (dB) 88.9 Digital supply (min) (V) 2.7 Digital supply (max) (V) 5.5
Resolution (Bits) 16 Number of input channels 2 Interface type Serial Architecture Delta-Sigma Modulator Input type Differential, Single-ended Multichannel configuration Simultaneous Sampling Rating Catalog Reference mode External, Internal Input voltage range (max) (V) 5 Input voltage range (min) (V) 0 Features Oscillator Operating temperature range (°C) -40 to 85 Power consumption (typ) (mW) 59 Analog supply (min) (V) 4.5 Analog supply voltage (max) (V) 5.5 SNR (dB) 88.9 Digital supply (min) (V) 2.7 Digital supply (max) (V) 5.5
VQFN (RGE) 24 16 mm² 4 x 4
  • 16-Bit Resolution
  • 14-Bit Linearity
  • ±2.5V Input Range at 2.5V
  • Internal Reference Voltage: 2%
  • Gain Error: 0.5%
  • Two Independent Delta-Sigma Modulators
  • Two Input Reference Buffers
  • On-Chip 20MHz Oscillator
  • Selectable Internal or External Clock
  • Operating Temperature Range: -40°C to +85°C
  • QFN-24 (4x4) Package
  • APPLICATIONS
    • Motor Control
    • Current Measurement
    • Industrial Process Control
    • Instrumentation
    • Resolver

All trademarks are the property of their respective owners.
  • 16-Bit Resolution
  • 14-Bit Linearity
  • ±2.5V Input Range at 2.5V
  • Internal Reference Voltage: 2%
  • Gain Error: 0.5%
  • Two Independent Delta-Sigma Modulators
  • Two Input Reference Buffers
  • On-Chip 20MHz Oscillator
  • Selectable Internal or External Clock
  • Operating Temperature Range: -40°C to +85°C
  • QFN-24 (4x4) Package
  • APPLICATIONS
    • Motor Control
    • Current Measurement
    • Industrial Process Control
    • Instrumentation
    • Resolver

All trademarks are the property of their respective owners.

The ADS1205 is a two-channel, high-performance, delta-sigma () modulator with more than 98dB dynamic range, operating from a single +5V supply. The differential inputs are ideal for direct connection to transducers in an industrial environment. 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 14 bits can be obtained with a digital filter bandwidth of 40kHz at a modulator rate of 10MHz. The ADS1205 is designed for use in high-resolution measurement applications including current measurements, smart transmitters, industrial process control, and resolvers. It is available in a QFN-24 (4x4) package.

The ADS1205 is a two-channel, high-performance, delta-sigma () modulator with more than 98dB dynamic range, operating from a single +5V supply. The differential inputs are ideal for direct connection to transducers in an industrial environment. 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 14 bits can be obtained with a digital filter bandwidth of 40kHz at a modulator rate of 10MHz. The ADS1205 is designed for use in high-resolution measurement applications including current measurements, smart transmitters, industrial process control, and resolvers. It is available in a QFN-24 (4x4) package.
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Technical documentation

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Type Title Date
* Data sheet Two 1-Bit, 10MHz, 2nd-Order, Delta-Sigma Modulators datasheet (Rev. B) 14 Aug 2007
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
EVM User's guide AMC1210MB-EVM User's Guide (Rev. A) 04 Feb 2016
E-book Best of Baker's Best: Precision Data Converters -- Delta-Sigma ADCs 19 Mar 2015
Analog Design Journal Closed-loop motor control: An introduction to rotary resolvers and encoders 11 Apr 2014
Analog Design Journal How delta-sigma ADCs work, Part 2 09 Nov 2011
Application note Using the AMC1210 in Resolver Motor Control Systems 18 May 2006

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