ADS7881IRGZR

LTB

Texas Instruments

2.7V-5.25V DIGITAL, 5V ANALOG, 12 BIT, 4MSPS, PARALLEL ADC WITH REF

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ADS7881IRGZR

LTB

Texas Instruments

2.7V-5.25V DIGITAL, 5V ANALOG, 12 BIT, 4MSPS, PARALLEL ADC WITH REF

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Description Specifications Series Pricing CAD Documents

Description

General part information

ADS7881 Series

The ADS7881 is a 12-bit 4-MSPS A-to-D converter with 2.5-V internal reference. The device includes a capacitor based SAR A/D converter with inherent sample and hold. The device offers a 12-bit parallel interface with an additional byte mode that provides easy interface with 8-bit processors. The device has a pseudo-differential input stage.

The –IN swing of ±200 mV is useful to compensate for ground voltage mismatch between the ADC and sensor and also to cancel common-mode noise. With nap mode enabled, the device operates at lower power when used at lower conversion rates. The device is available in a 48-pin TQFP package.

Technical Specifications

Parameters and characteristics for this part

Specification	ADS7881IRGZR

Architecture	SAR
Configuration	S/H-ADC
Data Interface	Parallel
Input Type	Pseudo-Differential
Mounting Type	Surface Mount
Number of A/D Converters	1 count
Number of Bits	12 bits
Number of Inputs	1
Operating Temperature (Max)	85 °C
Operating Temperature (Min)	-40 °C
Package / Case	48-VFQFN Exposed Pad
Package Length	7 mm
Package Name	48-VQFN
Package Width	7 mm
Ratio - ADC	1
Ratio - S/H	1
Reference Type	External, Internal
Sampling Rate (Per Second)	4 MHz
Voltage - Supply, Analog	5 V
Voltage - Supply, Digital (Max)	5.25 V
Voltage - Supply, Digital (Min)	2.7 V

ADS7881 Series

Part	Supplied Contents	Input Voltage (Min)	Input Voltage (Max)	Power (Typ)	Number of A/D Converters	Data Interface	Number of Bits	Contents	Sampling Rate (Per Second)	Utilized IC / Part	Mounting Type	Ratio - ADC	Ratio - S/H	Voltage - Supply, Digital (Min)	Voltage - Supply, Digital (Max)	Configuration	Package / Case	Number of Inputs	Input Type	Package Length	Package Name	Package Width	Operating Temperature (Min)	Operating Temperature (Max)	Voltage - Supply, Analog	Architecture	Reference Type
Texas Instruments ADS7881EVM	Board(s)	0 mV	2.5 V	95 mW	1 count	Parallel	12 bits	Board	4 MHz	ADS7881
Texas Instruments ADS7881IRGZR					1 count	Parallel	12 bits		4 MHz		Surface Mount	1	1	2.7 V	5.25 V	S/H-ADC	48-VFQFN Exposed Pad	1	Pseudo-Differential	7 mm	48-VQFN	7 mm	-40 °C	85 °C	5 V	SAR	External Internal
Texas Instruments ADS7881IRGZT					1 count	Parallel	12 bits		4 MHz		Surface Mount	1	1	2.7 V	5.25 V	S/H-ADC	48-VFQFN Exposed Pad	1	Pseudo-Differential	7 mm	48-VQFN	7 mm	-40 °C	85 °C	5 V	SAR	External Internal
Texas Instruments ADS7881IPFBT					1 count	Parallel	12 bits		4 MHz		Surface Mount	1	1	2.7 V	5.25 V	S/H-ADC	48-TQFP	1	Pseudo-Differential	7 mm	48-TQFP	7 mm	-40 °C	85 °C	5 V	SAR	External Internal
Texas Instruments ADS7881IPFBR					1 count	Parallel	12 bits		4 MHz		Surface Mount	1	1	2.7 V	5.25 V	S/H-ADC	48-TQFP	1	Pseudo-Differential	7 mm	48-TQFP	7 mm	-40 °C	85 °C	5 V	SAR	External Internal

Pricing

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CAD

3D models and CAD resources for this part

Documents

Technical documentation and resources

ADS7881IRGZR | Datasheet

Determining Minimum Acquisition Times for SAR ADCs, part 1 (Rev. A)

12 Bit 4 MSPS Low Power SAR Analog to Digital Converter datasheet (Rev. B)

Determining Minimum Acquisition Times for SAR ADCs, part 2

Interfacing the ADS7881 to TMS320C6713 DSP

ADS7881EVM, ADS7891EVM Evaluation Module (Rev. A)