ADS1174IPAPT

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Texas Instruments

QUAD, SIMULTANEOUS SAMPLING, 16-BIT ANALOG-TO-DIGITAL CONVERTER

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ADS1174IPAPT

Active

Texas Instruments

QUAD, SIMULTANEOUS SAMPLING, 16-BIT ANALOG-TO-DIGITAL CONVERTER

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Description Specifications Series Pricing CAD Documents

Description

General part information

ADS1174 Series

The ADS1174 (quad) and ADS1178 (octal) are multiple delta-sigma (ΔΣ) analog-to-digital converters (ADCs) with data rates up to 52k samples-per-second (SPS), which allow synchronous sampling of four and eight channels. These devices use identical packages, and are also compatible with the high-performance 24-bit ADS1274 and ADS1278, permitting drop-in upgrades.

The delta-sigma architecture offers near ideal 16-bit ac performance (97dB SNR, -105dB THD, 1LSB linearity) combined with 0.005dB passband ripple and linear phase response.

The high-order, chopper-stabilized modulator achieves very low drift (2µV/°C offset, 2ppm/°C gain) and low noise (1LSBPP). The on-chip finite impulse response (FIR) filter provides a usable signal bandwidth up to 90% of the Nyquist rate with 100dB of stop band attenuation while suppressing modulator and signal out-of-band noise.

Technical Specifications

Parameters and characteristics for this part

Specification	ADS1174IPAPT

Architecture	Sigma-Delta
Configuration	ADC
Data Interface	SPI
Features	Simultaneous Sampling
Input Type	Single Ended, Differential
Mounting Type	Surface Mount
Number of A/D Converters	1 count
Number of Bits	16 bits
Number of Inputs	4
Operating Temperature (Max)	85 °C
Operating Temperature (Min)	-40 °C
Package / Case	64-PowerTQFP
Package Length	10 mm
Package Name	64-HTQFP
Package Width	10 mm
Reference Type	External
Sampling Rate (Per Second)	52 kHz
Voltage - Supply, Analog	5 V
Voltage - Supply, Digital (Max)	1.95 V
Voltage - Supply, Digital (Min)	1.65 V

ADS1174 Series

Quad, Simultaneous Sampling, 16-Bit Analog-to-Digital Converter

Part	Supplied Contents	Contents	Utilized IC / Part	Sampling Rate (Per Second)	Number of A/D Converters	Power (Typ)	Number of Bits	Input Range	Data Interface	Package Width	Package Name	Package Length	Operating Temperature (Min)	Operating Temperature (Max)	Package / Case	Voltage - Supply, Analog	Mounting Type	Voltage - Supply, Digital (Max)	Voltage - Supply, Digital (Min)	Reference Type	Architecture	Features	Input Type	Configuration	Number of Inputs
Texas Instruments ADS1174EVM-PDK	Board(s)	Board	ADS1174	52 kHz	4 count	31 mW	16 bits	±VREF	Serial
Texas Instruments ADS1174IPAPR				52 kHz	1 count		16 bits		SPI	10 mm	64-HTQFP	10 mm	-40 °C	85 °C	64-PowerTQFP	5 V	Surface Mount	1.95 V	1.65 V	External	Sigma-Delta	Simultaneous Sampling	Differential Single Ended	ADC	4
Texas Instruments ADS1174EVM	Board(s)	Board	ADS1174	52 kHz	4 count	31 mW	16 bits	±VREF	Serial
Texas Instruments ADS1174IPAPT				52 kHz	1 count		16 bits		SPI	10 mm	64-HTQFP	10 mm	-40 °C	85 °C	64-PowerTQFP	5 V	Surface Mount	1.95 V	1.65 V	External	Sigma-Delta	Simultaneous Sampling	Differential Single Ended	ADC	4

Pricing

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CAD

3D models and CAD resources for this part

Documents

Technical documentation and resources

Datasheet

Fundamentals of Precision ADC Noise Analysis (Rev. A)

How delta-sigma ADCs work, Part 1 (Rev. A)

Digital Filter Types in Delta-Sigma ADCs (Rev. A)

How delta-sigma ADCs work, Part 2

Voltage-reference impact on total harmonic distortion