Datasheet Texas Instruments ADS7870

Manufacturer	Texas Instruments
Series	ADS7870

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Parametrics

Parameters / Models	ADS7870EA	ADS7870EA/1K	ADS7870EA/1KG4	ADS7870EAG4
# Input Channels	8	8	8	8
Analog Voltage AVDD(Max), V	5.5	5.5	5.5	5.5
Analog Voltage AVDD(Min), V	2.7	2.7	2.7	2.7
Architecture	SAR	SAR	SAR	SAR
Digital Supply(Max), V	5.5	5.5	5.5	5.5
Digital Supply(Min), V	2.7	2.7	2.7	2.7
INL(Max), +/-LSB	2.5	2.5	2.5	2.5
Input Range(Max), V	5.5	5.5	5.5	5.5
Input Type	Differential,Single-Ended	Differential,Single-Ended	Differential,Single-Ended	Differential,Single-Ended
Integrated Features	Oscillator,PGA	Oscillator,PGA	Oscillator,PGA	Oscillator,PGA
Interface	SPI	SPI	SPI	SPI
Multi-Channel Configuration	Multiplexed	Multiplexed	Multiplexed	Multiplexed
Operating Temperature Range, C	-40 to 85	-40 to 85	-40 to 85	-40 to 85
Package Group	SSOP	SSOP	SSOP	SSOP
Package Size: mm2:W x L, PKG	28SSOP: 80 mm2: 7.8 x 10.2(SSOP)	28SSOP: 80 mm2: 7.8 x 10.2(SSOP)	28SSOP: 80 mm2: 7.8 x 10.2(SSOP)	28SSOP: 80 mm2: 7.8 x 10.2(SSOP)
Power Consumption(Typ), mW	6	6	6	6
Rating	Catalog	Catalog	Catalog	Catalog
Reference Mode	Ext,Int	Ext,Int	Ext,Int	Ext,Int
Resolution, Bits	12	12	12	12
SINAD, dB	N/A	N/A	N/A	N/A
Sample Rate (max), SPS	52kSPS	52kSPS	52kSPS	52kSPS
Sample Rate(Max), MSPS	0.052	0.052	0.052	0.052
THD(Typ), dB	N/A	N/A	N/A	N/A

Eco Plan

Application Notes

• Download
  Analog-to-Digital Converter Grounding Practices Affect System Performance (Rev. A)
  PDF, 69 Kb, Revision: A, File published: May 18, 2015
• Download
  AB-174: Getting the Full Potential from your ADC (Rev. A)
  PDF, 72 Kb, Revision: A, File published: Jun 28, 2002
  Many of today?s high-resolution ADCs (Analog-to-Digital Converters) are operating from a single supply and use fully differential inputs. This can be a problem for single-ended signals that are bipolar relative to common. This article illustrates circuit configurations that preserve the full-scale input range by using modern features, such as Programmable Gain Amplifiers (PGAs) and internal voltag
• Download
  A Glossary of Analog-to-Digital Specifications and Performance Characteristics (Rev. B)
  PDF, 425 Kb, Revision: B, File published: Oct 9, 2011
  This glossary is a collection of the definitions of Texas Instruments' Delta-Sigma (О”ОЈ), successive approximation register (SAR), and pipeline analog-to-digital (A/D) converter specifications and performance characteristics. Although there is a considerable amount of detail in this document, the product data sheet for a particular product specification is the best and final reference.
• Download
  Interfacing the ADS7870 and the MC68HC11E9 Analog to Microcomputer Made Easy
  PDF, 82 Kb, File published: Sep 27, 2000
  Assembly of a data-acquisition system with its many parts (multiplexed, amplifiers, ADC, voltage reference, etc.) can be complex and expensive. The new Burr-Brown ADS7870 solves the problem with its 12-bit low-power CMOS data acquisition system containing all parts mentioned, and extras. The space saving system is in a samll (SSOP-28 surface-mount) plastic package.
• Download
  Determining Minimum Acquisition Times for SAR ADCs, part 1 (Rev. A)
  PDF, 227 Kb, Revision: A, File published: Nov 10, 2010
  This application report analyzes a simple method for calculating minimum acquisition times for successive-approximation register analog-to-digital converters (SAR ADCs). The input structure of the ADC is examined along with the driving circuit. The voltage on the sampling capacitor is then determined for the case when a step function is applied to the input of the driving circuit. Three different
• Download
  Principles of Data Acquisition and Conversion (Rev. A)
  PDF, 132 Kb, Revision: A, File published: Apr 16, 2015
• Download
  Determining Minimum Acquisition Times for SAR ADCs, part 2
  PDF, 215 Kb, File published: Mar 17, 2011
  The input structure circuit of a successive-approximation register analog-to-digital converter (SAR ADC) incombination with the driving circuit forms a transfer function that can be used to determine minimum acquisition times for different types of applied input signals. This application report, which builds on Determining Minimum Acquisition Times for SAR ADCs When a Step Function is Applied to

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Manufacturer's Classification

• Semiconductors> Data Converters> Analog-to-Digital Converters (ADCs)> Precision ADCs (<=10MSPS)