Home Data converters Analog-to-digital converters (ADCs) Precision ADCs
Home
Data converters
Analog-to-digital converters (ADCs)
Precision ADCs

ADS1205

ACTIVE

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

Order now
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 voltage (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 voltage (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.
filter Find other Precision ADCs
Download View video with transcript Video

Similar products you might be interested in

open-in-new Compare alternates
Same functionality with different pin-out to the compared device
ADS1209 ACTIVE 16-Bit, 10MHz, 2-Ch, Delta-Sigma Modulator Larger temperature range (-40 to 105 C)
Similar functionality to the compared device
ADS1203 ACTIVE Current-shunt delta-sigma modulator, 10MHz CLK, +/-250mV input, 16-bit resolution, ext ref option Lower channel count (1-Ch), single ended and differential input types
ADS1204 ACTIVE Four Delta-Sigma Modulators, 10MHz CLK, 0-5V Input, 16-Bit Resolution Higher channel count (4-Ch), higher power consumption (122 mW)

Technical documentation

star =Top documentation for this product selected by TI
No results found. Please clear your search and try again.
View all 8
Top documentation Type Title Format options 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
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

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

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 (...)

User guide: PDF
View Options
Simulation model

ADS1205, ADS1209 IBIS Model

SBAM024.ZIP (92 KB) - IBIS Model
Download
Calculation tool

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

Supported products & hardware
Launch Download
Calculation tool

SBAR010 — Delta Sigma Modulator Filter Calculator

Supported products & hardware

Supported products & hardware
Download
Design tool

ADC-DAC-TO-VREF-SELECT-DESIGN-TOOL — The ADC-TO-VREF-SELECT tool enables the pairing of TI ADCs, DACs, and series voltage references.

The ADC-TO-VREF-SELECT tool enables the pairing of TI analog-to-digital converters (ADCs) and series voltage references. Users can select an ADC device and the desired reference voltage, and the tool will list up to two voltage reference recommendations.
Supported products & hardware

Supported products & hardware
Launch
Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

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 (...)
Request
Simulation tool

TINA-TI — SPICE-based analog simulation program

TINA-TI provides all the conventional DC, transient and frequency domain analysis of SPICE and much more. TINA has extensive post-processing capability that allows you to format results the way you want them. Virtual instruments allow you to select input waveforms and probe circuit nodes voltages (...)
User guide: PDF
View Options
Reference designs

TIDA-RESOLVER-APPLICATIONS-REFERENCE-DESIGN — Motherboard/controller for the AMC1210

This is a reference design for resolver applications and part of a modular system for evaluating our delta-sigma modulators. The software included allows use of the AMC1210 in a variety of configurations for resolver and current-shunt applications and features a data-export utility to support data (...)
Test report: PDF
Schematic: PDF
Package Pins CAD symbols, footprints & 3D models
VQFN (RGE) 24 Ultra Librarian
TI's Standard Terms and Conditions for Evaluation Items apply.

Ordering & quality

Information included:
  • RoHS
  • REACH
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring
Information included:
  • Fab location
  • Assembly location

Recommended products may have parameters, evaluation modules or reference designs related to this TI product.

Support & training

TI E2E™ forums with technical support from TI engineers

View all forum topics

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​​​​​​​

Videos