Texas Instruments ADS1286 12-Bit Micro Power Sampling Analog-to-Digital Converter

Summary

The ADS1286 is a high-precision, low-power 12-bit Analog-to-Digital Converter (ADC) featuring an SPI/SSI serial interface. It is engineered for demanding remote and isolated data acquisition applications requiring minimal power consumption and guaranteed data integrity. This detailed technical manual provides experienced engineers with comprehensive specifications, including resolution, linearity ranges, noise floors, timing diagrams, and complete operating parameters necessary for reliable system design and seamless integration into industrial control systems.

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查询ADS1286_06供应商

ADS1286 ADS1286

ADS1286

12-Bit Micro Power Sampling ANALOG-TO-DIGITAL CONVERTER

FEATURES DESCRIPTION SERIAL INTERFACE The ADS1286 is a 12-bit, 20k Hz analog-to-digital

converter with a differential input and sample and hold

GUARANTEED NO MISSING CODES

amplifier and consumes only 250µA of supply cur-

20k Hz SAMPLING RATE

rent. The ADS1286 offers an SPI and SSI compatible

LOW SUPPLY CURRENT: 250µA

serial interface for communications over a two or three wire interface. The combination of a serial two wire APPLICATIONS interface and micropower consumption makes the ADS1286 ideal for remote applications and for those

REMOTE DATA ACQUISITION requiring isolation. ISOLATED DATA ACQUISITION The ADS1286 is available in a 8-pin plastic mini DIP

TRANSDUCER INTERFACE and a 8-lead SOIC.

BATTERY OPERATED SYSTEMS

SAR Control

CDAC Serial –In Interface DCLOCK

CS/SHDN

Comparator S/H Amp

International Airport Industrial Park • Mailing Address: PO Box 11400, Tucson, AZ 85734 • Street Address: 6730 S. Tucson Blvd., Tucson, AZ 85706 • Tel: (520) 746-1111 Twx: 910-952-1111 • Internet: http://www.burr-brown.com/ • Cable: BBRCORP • Telex: 066-6491 • FAX: (520) 889-1510 • Immediate Product Info: (800) 548-6132

PDS-1335B Printed in U.S.A. October, 1998

SBAS053

Page Summary Contents For Texas Instruments ADS1286 12-Bit Micro Power Sampling Analog-to-Digital Converter

Page 1 查询ADS1286_06供应商 ADS1286 ADS1286 ADS1286 12-Bit Micro Power Sampling ANALOG-TO-DIGITAL CONVERTER FEATURES DESCRIPTION SERIAL INTERFACE The ADS1286 is a 12-bit, 20k Hz analog-to-digital converter with a...

Page 2 SPECIFICATIONS At TA = TMIN to TMAX, +VCC = +5V, VREF = +5V, f SAMPLE = 12.5k Hz, , f CLK = 16 • f SAMPLE, unless otherwise specified. ADS1286, ADS1286A ADS1286K, ADS1286B ADS1286C, ADS1286L PARAMETER...

Page 3 ABSOLUTE MAXIMUM RATINGS(1) ELECTROSTATIC +VCC +6V DISCHARGE SENSITIVITY Analog Input –0.3V to (+VCC + 300m V) Logic Input –0.3V to (+VCC + 300m V) Electrostatic discharge can cause damage ranging fro...

Page 4 el ta fr om 5V ef er en ce LS TYPICAL PERFORMANCE CURVES ha ng in ffs et LS ef er en ce ur re nt µA At TA = +25, VCC = +5V, VREF = +5V, f SAMPLE = 12.5k Hz, f CLK = 16 • f SAMPLE, unless otherwise spe...

Page 5 TYPICAL PERFORMANCE CURVES (CONT) At TA = +25, VCC = +5V, VREF = +5V, f SAMPLE = 12.5k Hz, f CLK = 16 • f SAMPLE, unless otherwise specified. ffe ct iv um be of its rm s) ig na l-t o- (N oi se is to r...

Page 6 up pl ur re nt µA TYPICAL PERFORMANCE CURVES (CONT) ow er up pl ej ec tio (d ag ni tu de d B At TA = +25, VCC = +5V, VREF = +5V, f SAMPLE = 12.5k Hz, f CLK = 16 • f SAMPLE, unless otherwise specified....

Page 7 TYPICAL PERFORMANCE CURVES (CONT) At TA = +25, VCC = +5V, VREF = +5V, f SAMPLE = 12.5k Hz, f CLK = 16 • f SAMPLE, unless otherwise specified. In te gr al in ea rit rr or LS DIGITAL INPUT LINE THRESHOL...

Page 8 TIMING DIAGRAMS AND TEST CIRCUITS 3kΩ VOH Test Point tr tf 100p F CLOAD Load Circuit for td DO, tr, and tf Voltage Waveforms for DOUT Rise and Fall Times tr, and tf Test Point DCLOCK td DO 3kΩ tdis Wa...

Page 9 t CYC CS/SHDN POWER t SUCS DCLOCK t CSD NULL NULL BIT HI-ZHI-Z BIT DOUT B11 B10 B9 B8 B7 B6 B5 B4 B3 B2 B1 B0(1) B11 B10 B9 B8 (MSB) t SMPL t CONV t DATA Note: (1) After completing the data transfer, ...

Page 10 MINIMIZING POWER DISSIPATION REDUCED REFERENCE up pl ur re nt µA In systems that have significant time between conversions, OPERATION the lowest power drain will occur with the minimum CS LOW time. Br...

Page 11 OPA237 500kΩ C1 MUX R2 R6 VREF 10µF DCLOCK C3 DOUT TC1 ADS1286 1kΩ TC2 0.1µF CS/SHDN 0.1V Thermocouple A1 TC3 U1 ISO Thermal Block 3-Wire Interface FIGURE 5. Thermocouple Application Using a MUX to Sc...

Page 12 PACKAGE OPTION ADDENDUM www.ti.com 8-Aug-2006 PACKAGING INFORMATION Orderable Device Status Package Package Pins Package Eco Plan Lead/Ball Finish MSL Peak Temp Type Drawing Qty ADS1286P ACTIVE PDIP G...

Page 13 PACKAGE OPTION ADDENDUM www.ti.com 8-Aug-2006 (1) The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs. LIFEBUY: TI has announced that the device will...

Page 14 IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and servic...

Manual Details

Brand	Texas Instruments
Pages	14
File Size	138.95 KB
Published	June 17, 2026

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Frequently Asked Questions

What resolution does the ADS1286 offer?

It is a 12-bit analog-to-digital converter with guaranteed no missing codes.

What serial interfaces does the ADS1286 support?

It supports SPI and SSI compatible serial interfaces over two or three wire connections.

What is the typical supply current of the ADS1286?

It consumes 250μA of supply current typically during operation.

What are the package options for the ADS1286?

It is available in an 8-pin plastic mini DIP and an 8-lead SOIC package.