Datasheet

ManualsBrandsTEXAS INSTRUMENTS ManualsData collecting ICsData acquisition IC - DA converter (DAC) TSSOP 16

DAC8871

FEATURES DESCRIPTION

APPLICATIONS

DAC

DAC8871

Control

Logic

V -S

REFL

V -F

REFL

V -F

REFH

V -S

REFH

OUT

AGND

DGND

RSTSEL

RST

LDAC

Serial

Interface

SCLK

SDI

Input

Data

DAC

Latch

DAC8871

www.ti.com

............................................................................................................................................................. SBAS396A – JUNE 2007 – REVISED JUNE 2008

16-Bit, Single-Channel, ± 18V Output (Unbuffered), Ultra-Low Power, Serial Interface

DIGITAL-TO-ANALOG CONVERTER

2345

• 16-Bit Resolution

The DAC8871 is a 16-bit, single-channel, serial input,

voltage output digital-to-analog converter (DAC). The

• Output: ± 18V for ± 18V Reference Input

output range is determined by the reference voltage,

• ± 18V Supply Operation

REFH

and V

REFL

. By properly selecting the reference,

• Very Low Power

the output can be unipolar or bipolar, and up to ± 18V.

• High Accuracy INL: 1LSB The DAC8871 provides excellent linearity (1LSB INL),

low noise, and fast settling (1 µ s to 1LSB of full scale

• Low Noise: 10nV/ √ Hz

output) over the specified temperature range of

• Fast Settling: 1 µ s to 1LSB

– 40 ° C to +105 ° C. The output is unbuffered, which

• Fast SPI™ Interface: Up To 50MHz

reduces the power consumption and the error

introduced by the buffer. This device features a

• 16-Pin TSSOP Package

standard high-speed clock (up to 50MHz), and a 3V

• Selectable Reset to Zero or Midscale

or 5V SPI serial interface to communicate with the

DSP or microprocessors. For optimum performance,

a set of Kelvin connections to external reference are

• Portable Equipment

provided.

• Automatic Test Equipment

The DAC8871 is available in a TSSOP-16 package.

• Industrial Process Control

• Data Acquisition Systems

• Optical Networking

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas

Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

2 TI DSP is a trademark of Texas Instruments.

3 SPI, QSPI are trademarks of Motorola, Inc.

4 Microwire is a trademark of National Semiconductor.

5 All other trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

Summary of content (23 pages)

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DAC8871 DA C8 871 www.ti.com .............................................................................................................................................................
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DAC8871 SBAS396A – JUNE 2007 – REVISED JUNE 2008 ............................................................................................................................................................. www.ti.com This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with appropriate precautions. Failure to observe proper handling and installation procedures can cause damage.
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DAC8871 www.ti.com ............................................................................................................................................................. SBAS396A – JUNE 2007 – REVISED JUNE 2008 ELECTRICAL CHARACTERISTICS All specifications at TA = TMIN to TMAX, VCC = +15V, VSS = –15V, VREFH = +10V, VREFL = –10V, and VDD = +5V, unless otherwise noted; specifications subject to change without notice.
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DAC8871 SBAS396A – JUNE 2007 – REVISED JUNE 2008 ............................................................................................................................................................. www.ti.com ELECTRICAL CHARACTERISTICS (continued) All specifications at TA = TMIN to TMAX, VCC = +15V, VSS = –15V, VREFH = +10V, VREFL = –10V, and VDD = +5V, unless otherwise noted; specifications subject to change without notice. DAC8871 PARAMETER CONDITIONS MIN TYP MAX UNIT VCC +13.5 +15 +19.
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DAC8871 www.ti.com ............................................................................................................................................................. SBAS396A – JUNE 2007 – REVISED JUNE 2008 PIN CONFIGURATION (NOT TO SCALE) PW PACKAGE TSSOP-16 (TOP VIEW) VOUT 1 16 DGND VCC 2 15 LDAC VSS 3 14 SDI AGND 4 13 SCLK DAC8871 VREFH-F 5 12 CS VREFH-S 6 11 RST VREFL-S 7 10 RSTSEL VREFL-F 8 9 VDD TERMINAL FUNCTIONS TERMINAL NO.
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DAC8871 SBAS396A – JUNE 2007 – REVISED JUNE 2008 ............................................................................................................................................................. www.ti.com TIMING DIAGRAMS tTD CS tDelay DAC Updated tSCK tLead tLag tWSCK tWSCK tDSCLK SCLK tSU Bit 15 (MSB) SDI LDAC tHO Bit 14 Bit 13, ..., Bit 1 Bit 0 LOW tRST RST -- Don’t Care Figure 1.
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DAC8871 www.ti.com ............................................................................................................................................................. SBAS396A – JUNE 2007 – REVISED JUNE 2008 TIMING CHARACTERISTICS: VDD = +5V (1) (2) At –40°C to +105°C, unless otherwise noted.
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DAC8871 SBAS396A – JUNE 2007 – REVISED JUNE 2008 ............................................................................................................................................................. www.ti.com TYPICAL CHARACTERISTICS At TA = +25°C, VDD = +5V, VCC = +15V, VSS = –15V, VREFH = +10V, and VREFL =–10V, unless otherwise noted. LINEARITY ERROR vs DIGITAL INPUT CODE 1.00 1.00 TA = +25°C VREFH = 10V VREFL = -5V 0.75 0.50 0.25 0 -0.25 0.50 0 -0.25 -0.50 -0.75 -0.75 -1.
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DAC8871 www.ti.com ............................................................................................................................................................. SBAS396A – JUNE 2007 – REVISED JUNE 2008 TYPICAL CHARACTERISTICS (continued) At TA = +25°C, VDD = +5V, VCC = +15V, VSS = –15V, VREFH = +10V, and VREFL =–10V, unless otherwise noted. LINEARITY ERROR vs DIGITAL INPUT CODE 1.00 DIFFERENTIAL LINEARITY ERROR vs DIGITAL INPUT CODE 1.00 TA = +25°C 0.75 0.50 0.
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DAC8871 SBAS396A – JUNE 2007 – REVISED JUNE 2008 ............................................................................................................................................................. www.ti.com TYPICAL CHARACTERISTICS (continued) At TA = +25°C, VDD = +5V, VCC = +15V, VSS = –15V, VREFH = +10V, and VREFL =–10V, unless otherwise noted. LINEARITY ERROR vs DIGITAL INPUT CODE DIFFERENTIAL LINEARITY ERROR vs DIGITAL INPUT CODE 1.00 1.00 VREFH = 10V VREFL = 0V 0.50 0.50 0.25 0.
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DAC8871 www.ti.com ............................................................................................................................................................. SBAS396A – JUNE 2007 – REVISED JUNE 2008 TYPICAL CHARACTERISTICS (continued) At TA = +25°C, VDD = +5V, VCC = +15V, VSS = –15V, VREFH = +10V, and VREFL =–10V, unless otherwise noted. INTEGRAL NONLINEARITY ERROR vs ANALOG SUPPLY VOLTAGE DIFFERENTIAL NONLINEARITY ERROR vs ANALOG SUPPLY VOLTAGE 2.0 1.0 1.5 0.8 0.6 0.4 0.
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DAC8871 SBAS396A – JUNE 2007 – REVISED JUNE 2008 ............................................................................................................................................................. www.ti.com TYPICAL CHARACTERISTICS (continued) At TA = +25°C, VDD = +5V, VCC = +15V, VSS = –15V, VREFH = +10V, and VREFL =–10V, unless otherwise noted.
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DAC8871 www.ti.com ............................................................................................................................................................. SBAS396A – JUNE 2007 – REVISED JUNE 2008 TYPICAL CHARACTERISTICS (continued) At TA = +25°C, VDD = +5V, VCC = +15V, VSS = –15V, VREFH = +10V, and VREFL =–10V, unless otherwise noted. MAJOR CARRY GLITCH (FALLING) 5V/div MAJOR CARRY GLITCH (RISING) 5V/div LDAC LDAC VOUT VOUT 200mV/div 200mV/div Time (0.5ms/div) Time (0.
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DAC8871 SBAS396A – JUNE 2007 – REVISED JUNE 2008 ............................................................................................................................................................. www.ti.com THEORY OF OPERATION GENERAL DESCRIPTION The DAC8871 is a 16-bit, single-channel, serial-input, voltage-output DAC. It operates from a dual power supply ranging from ±13.5V to ±19.8V, and typically consumes 10µA. The output range is from VREFL to VREFH.
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DAC8871 www.ti.com ............................................................................................................................................................. SBAS396A – JUNE 2007 – REVISED JUNE 2008 POWER-ON RESET AND HARDWARE RESET The DAC8871 has a power-on reset function. When the RSTSEL pin is low (tied to DGND), and after power-on or a hardware reset signal is applied to the RST pin, the DAC latch is cleared ('0') and the VOUT pin is set to negative full-scale.
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DAC8871 SBAS396A – JUNE 2007 – REVISED JUNE 2008 ............................................................................................................................................................. www.ti.com APPLICATION INFORMATION REFERENCE INPUT The DAC full-scale output voltage is determined by the reference voltage, as shown in the Output Range section. Reference input VREFH can be any voltage from 0V to +18V. Reference input VREFL can be any voltage from –18V to (VREFH – 1.25V).
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PACKAGE OPTION ADDENDUM www.ti.
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PACKAGE OPTION ADDENDUM www.ti.com 21-May-2010 Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties.
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PACKAGE MATERIALS INFORMATION www.ti.com 14-Jul-2012 TAPE AND REEL INFORMATION *All dimensions are nominal Device Package Package Pins Type Drawing SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) B0 (mm) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant DAC8871SBPWR TSSOP PW 16 2000 330.0 12.4 6.9 5.6 1.6 8.0 12.0 Q1 DAC8871SPWR TSSOP PW 16 2000 330.0 12.4 6.9 5.6 1.6 8.0 12.
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PACKAGE MATERIALS INFORMATION www.ti.com 14-Jul-2012 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) DAC8871SBPWR TSSOP PW 16 2000 367.0 367.0 35.0 DAC8871SPWR TSSOP PW 16 2000 367.0 367.0 35.
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IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, enhancements, improvements and other changes to its semiconductor products and services per JESD46C and to discontinue any product or service per JESD48B. Buyers should obtain the latest relevant information before placing orders and should verify that such information is current and complete.