Datasheet Texas Instruments ADS7825

Manufacturer	Texas Instruments
Series	ADS7825

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Packaging

Parametrics

Parameters / Models	ADS7825U	ADS7825U/1K	ADS7825UB	ADS7825UB/1K	ADS7825UBG4	ADS7825UE4	ADS7825UG4
# Input Channels	4	4	4	4	4	4	4
Analog Voltage AVDD(Max), V	5.25	5.25	5.25	5.25	5.25	5.25	5.25
Analog Voltage AVDD(Min), V	4.75	4.75	4.75	4.75	4.75	4.75	4.75
Architecture	SAR	SAR	SAR	SAR	SAR	SAR	SAR
Digital Supply(Max), V	5.25	5.25	5.25	5.25	5.25	5.25	5.25
Digital Supply(Min), V	4.75	4.75	4.75	4.75	4.75	4.75	4.75
INL(Max), +/-LSB	2	2	2	2	2	2	2
Input Range(Max), V	10	10	10	10	10	10	10
Input Range(Min), V	-10	-10	-10	-10	-10	-10	-10
Input Type	Single-Ended	Single-Ended	Single-Ended	Single-Ended	Single-Ended	Single-Ended	Single-Ended
Integrated Features	Over-Voltage Protection	Over-Voltage Protection	Over-Voltage Protection	Over-Voltage Protection	Over-Voltage Protection	Over-Voltage Protection	Over-Voltage Protection
Interface	Parallel,Serial	Parallel,Serial	Parallel,Serial	Parallel,Serial	Parallel,Serial	Parallel,Serial	Parallel,Serial
Multi-Channel Configuration	Multiplexed	Multiplexed	Multiplexed	Multiplexed	Multiplexed	Multiplexed	Multiplexed
Operating Temperature Range, C	-40 to 85	-40 to 85	-40 to 85	-40 to 85	-40 to 85	-40 to 85	-40 to 85
Package Group	SOIC	SOIC	SOIC	SOIC	SOIC	SOIC	SOIC
Package Size: mm2:W x L, PKG	28SOIC: 184 mm2: 10.3 x 17.9(SOIC)	28SOIC: 184 mm2: 10.3 x 17.9(SOIC)	28SOIC: 184 mm2: 10.3 x 17.9(SOIC)	28SOIC: 184 mm2: 10.3 x 17.9(SOIC)	28SOIC: 184 mm2: 10.3 x 17.9(SOIC)	28SOIC: 184 mm2: 10.3 x 17.9(SOIC)	28SOIC: 184 mm2: 10.3 x 17.9(SOIC)
Power Consumption(Typ), mW	50	50	50	50	50	50	50
Rating	Catalog	Catalog	Catalog	Catalog	Catalog	Catalog	Catalog
Reference Mode	Ext,Int	Ext,Int	Ext,Int	Ext,Int	Ext,Int	Ext,Int	Ext,Int
Resolution, Bits	16	16	16	16	16	16	16
SINAD, dB	86	86	86	86	86	86	86
SNR, dB	86	86	86	86	86	86	86
Sample Rate (max), SPS	40kSPS	40kSPS	40kSPS	40kSPS	40kSPS	40kSPS	40kSPS
Sample Rate(Max), MSPS	0.04	0.04	0.04	0.04	0.04	0.04	0.04
THD(Typ), dB	-90	-90	-90	-90	-90	-90	-90

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
  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
  Using the Continuos Parallel Mode with the ADS7824 and ADS7825
  PDF, 57 Kb, File published: Sep 27, 2000
  The ADS7824 and ADS7825 are 12-bit and 16-bit converters that have a four channel multiplexed front end. The channel selection on the analog input of these converters is programmable by way of the pins on the devices, A0 and A1. This feature provides the most flexibility by allowing the user to change to the preferred input channel on the fly. Additionally, the input channels can be cycled by util
• 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
• Download
  ADS7809 Tag Features
  PDF, 50 Kb, File published: Sep 27, 2000
  The ADS7809 is part of a family of capacitive redistribution SAR A/D converters that feature a serial output and a tag pin for cascading multiple converters. Other members of this family include the ADS7806, ADS7807, ADS7808, ADS7824, and ADS7825. Note that the even numbered converters are 12-bit converters and the odd numbered converters are 16-bit converters.

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Manufacturer's Classification

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