ADS1211

ACTIVE

24-bit, 15.6-kSPS, 8-ch delta-sigma ADC with VREF and PGA

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Data sheet

document-pdfAcrobat 24-Bit Analog-to-Digital Converter datasheet (Rev. B)

ADS1211

ACTIVE

Data sheet

Order now

Product details

Resolution (bps)

24

Sample rate (max) (ksps)

16

Number of input channels

4

Interface type

SPI

Architecture

Delta-Sigma

Input type

Differential, Single-ended

Multichannel configuration

Multiplexed

Rating

Catalog

Reference mode

External, Internal

Input voltage range (max) (V)

5

Input voltage range (min) (V)

0

Operating temperature range (°C)

-40 to 85

Power consumption (typ) (mW)

27.5

Analog supply (min) (V)

4.75

Analog supply voltage (max) (V)

5.25

Digital supply (min) (V)

4.75

Digital supply (max) (V)

5.25

Resolution (bps)

24

Sample rate (max) (ksps)

16

Number of input channels

4

Interface type

SPI

Architecture

Delta-Sigma

Input type

Differential, Single-ended

Multichannel configuration

Multiplexed

Rating

Catalog

Reference mode

External, Internal

Input voltage range (max) (V)

5

Input voltage range (min) (V)

0

Operating temperature range (°C)

-40 to 85

Power consumption (typ) (mW)

27.5

Analog supply (min) (V)

4.75

Analog supply voltage (max) (V)

5.25

Digital supply (min) (V)

4.75

Digital supply (max) (V)

5.25

SOIC (DW)

24

159.65 mm² 15.5 x 10.3

DELTA-SIGMA A/D CONVERTER
23 BITS EFFECTIVE RESOLUTION AT 10Hz AND 20 BITS AT 1000Hz
DIFFERENTIAL INPUTS
PROGRAMMABLE GAIN AMPLIFIER
FLEXIBLE SPI™ COMPATIBLE SSI INTERFACE WITH 2-WIRE MODE
PROGRAMMABLE CUT-OFF FREQUENCY UP TO 15.6kHz
INTERNAL/EXTERNAL REFERENCE
ON CHIP SELF-CALIBRATION
ADS1211 INCLUDES 4-CHANNEL MUX
APPLICATIONS
- INDUSTRIAL PROCESS CONTROL
- INSTRUMENTATION
- BLOOD ANALYSIS
- SMART TRANSMITTERS
- PORTABLE INSTRUMENTS
- WEIGH SCALES
- PRESSURE TRANSDUCERS

All trademarks are the property of their respective owners.

DELTA-SIGMA A/D CONVERTER
23 BITS EFFECTIVE RESOLUTION AT 10Hz AND 20 BITS AT 1000Hz
DIFFERENTIAL INPUTS
PROGRAMMABLE GAIN AMPLIFIER
FLEXIBLE SPI™ COMPATIBLE SSI INTERFACE WITH 2-WIRE MODE
PROGRAMMABLE CUT-OFF FREQUENCY UP TO 15.6kHz
INTERNAL/EXTERNAL REFERENCE
ON CHIP SELF-CALIBRATION
ADS1211 INCLUDES 4-CHANNEL MUX
APPLICATIONS
- INDUSTRIAL PROCESS CONTROL
- INSTRUMENTATION
- BLOOD ANALYSIS
- SMART TRANSMITTERS
- PORTABLE INSTRUMENTS
- WEIGH SCALES
- PRESSURE TRANSDUCERS

All trademarks are the property of their respective owners.

The ADS1210 and ADS1211 are precision, wide dynamic range, delta-sigma analog-to-digital converters with 24-bit resolution operating from a single +5V supply. The differential inputs are ideal for direct connection to transducers or low level voltage signals. The delta-sigma architecture is used for wide dynamic range and to guarantee 22 bits of no missing code performance. An effective resolution of 23 bits is achieved through the use of a very low-noise input amplifier at conversion rates up to 10Hz. Effective resolutions of 20 bits can be maintained up to a sample rate of 1kHz through the use of the unique Turbo modulator mode of operation. The dynamic range of the converters is further increased by providing a low-noise programmable gain amplifier with a gain range of 1 to 16 in binary steps.

The ADS1210 and ADS1211 are designed for high resolution measurement applications in smart transmitters, industrial process control, weigh scales, chromatography and portable instrumentation. Both converters include a flexible synchronous serial interface which is SPI compatible and also offers a two-wire control mode for low cost isolation.

The ADS1210 is a single channel converter and is offered in both 18-pin DIP and 18-lead SOIC packages. The ADS1211 includes a 4-channel input multiplexer and is available in 24-pin DIP, 24-lead SOIC, and 28-lead SSOP packages.

The ADS1210 and ADS1211 are precision, wide dynamic range, delta-sigma analog-to-digital converters with 24-bit resolution operating from a single +5V supply. The differential inputs are ideal for direct connection to transducers or low level voltage signals. The delta-sigma architecture is used for wide dynamic range and to guarantee 22 bits of no missing code performance. An effective resolution of 23 bits is achieved through the use of a very low-noise input amplifier at conversion rates up to 10Hz. Effective resolutions of 20 bits can be maintained up to a sample rate of 1kHz through the use of the unique Turbo modulator mode of operation. The dynamic range of the converters is further increased by providing a low-noise programmable gain amplifier with a gain range of 1 to 16 in binary steps.

The ADS1210 and ADS1211 are designed for high resolution measurement applications in smart transmitters, industrial process control, weigh scales, chromatography and portable instrumentation. Both converters include a flexible synchronous serial interface which is SPI compatible and also offers a two-wire control mode for low cost isolation.

The ADS1210 is a single channel converter and is offered in both 18-pin DIP and 18-lead SOIC packages. The ADS1211 includes a 4-channel input multiplexer and is available in 24-pin DIP, 24-lead SOIC, and 28-lead SSOP packages.

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