Datasheet

ManualsBrandsTEXAS INSTRUMENTS ManualsData collecting ICsData acquisition IC - DA converter (DAC) SOIC 14

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OPA132

IVC102

DAC8831

FEATURES DESCRIPTION

APPLICATIONS

DAC

DAC8830

SDI

SCLK

REF

DGND

OUT

AGND

Serial

Interface

Input

DAC Latch

RFB

INV

AGNDF

AGNDS

DGND

DAC

DAC Latch

Input

DAC8831

Functional Block Diagram

DAC8830

Functional Block Diagram

−

OPA277

OPA704

OPA727

SDI

SCLK

LDAC

OUT

INV

REF

−

REF

−

Serial Interface

and Control Logic

DAC8830

DAC8831

SLAS449D – FEBRUARY 2005 – REVISED SEPTEMBER 2007

16-Bit, Ultra-Low Power, Voltage-Output

Digital-to-Analog Converters

234

• 16-Bit Resolution

The DAC8830 and DAC8831 are single, 16-bit,

serial-input, voltage-output digital-to-analog

• 2.7 V to 5.5 V Single-Supply Operation

converters (DACs) operating from a single 3 V to 5 V

• Very Low Power: 15 μ W for 3 V Power

power supply. These converters provide excellent

• High Accuracy, INL: 1 LSB

linearity (1 LSB INL), low glitch, low noise, and fast

• Low Noise: 10 nV/ √ Hz settling (1.0 μ S to 1/2 LSB of full-scale output) over

the specified temperature range of – 40 ° C to +85 ° C.

• Fast Settling: 1.0 μ S

The output is unbuffered, which reduces the power

• Fast SPI™ Interface, up to 50 MHz

consumption and the error introduced by the buffer.

• Reset to Zero-Code

These parts feature a standard high-speed (clock up

• Schmitt-Trigger Inputs for Direct Optocoupler

to 50 MHz), 3 V or 5 V SPI serial interface to

Interface

communicate with a DSP or microprocessor.

• Industry-Standard Pin Configuration

The DAC8830 output is 0 V to V

REF

. However, the

DAC8831 provides bipolar output ( ± V

REF

) when

working with an external buffer. The DAC8830 and

• Portable Equipment

DAC8831 are both reset to zero code after power up.

For optimum performance, a set of Kelvin

• Automatic Test Equipment

connections to external reference and analog ground

• Industrial Process Control

input are provided on the DAC8831.

• Data Acquisition Systems

The DAC8830 is available in an SO-8 package, and

• Optical Networking

the DAC8831 in an SO-14 package. Both have

industry standard pinouts (see Table 3 , the

cross-reference table in the Application Information

section for details). The DAC8831 is also available in

a QFN-14 package.

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 SPI, QSPI are trademarks of Motorola, Inc.

3 Microwire is a trademark of National Semiconductor Corp.

4 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 (34 pages)

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DAC8830 DAC8831 IVC 102 OP A1 32 DA C8 ® 831 SLAS449D – FEBRUARY 2005 – REVISED SEPTEMBER 2007 16-Bit, Ultra-Low Power, Voltage-Output Digital-to-Analog Converters FEATURES DESCRIPTION 1 • • • • • • • • • 234 • 16-Bit Resolution 2.7 V to 5.5 V Single-Supply Operation Very Low Power: 15 μW for 3 V Power High Accuracy, INL: 1 LSB Low Noise: 10 nV/√Hz Fast Settling: 1.
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DAC8830 DAC8831 www.ti.com SLAS449D – FEBRUARY 2005 – REVISED SEPTEMBER 2007 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. ESD damage can range from subtle performance degradation to complete device failure.
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DAC8830 DAC8831 www.ti.com SLAS449D – FEBRUARY 2005 – REVISED SEPTEMBER 2007 ELECTRICAL CHARACTERISTICS All specifications at TA = TMIN to TMAX, VDD = +3 V or VDD = +5 V, VREF = +2.5 V unless otherwise noted. DAC8830, DAC8831 PARAMETER CONDITIONS MIN TYP MAX UNIT STATIC PERFORMANCE Resolution Linearity error 16 bits DAC8830ICD, DAC8831ICD, DAC8831ICRGY ±0.5 ±1 DAC8830IBD, DAC8831IBD, DAC8831IBRGY ±0.5 ±2 DAC8830ID, DAC8831ID, DAC8831IRGY ±0.5 ±4 ±0.
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DAC8830 DAC8831 www.ti.com SLAS449D – FEBRUARY 2005 – REVISED SEPTEMBER 2007 ELECTRICAL CHARACTERISTICS (continued) All specifications at TA = TMIN to TMAX, VDD = +3 V or VDD = +5 V, VREF = +2.5 V unless otherwise noted. DAC8830, DAC8831 PARAMETER CONDITIONS MIN TYP MAX UNIT VDD V REFERENCE INPUT Reference input voltage range Reference input impedance (4) 1.
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DAC8830 DAC8831 www.ti.
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DAC8830 DAC8831 www.ti.com SLAS449D – FEBRUARY 2005 – REVISED SEPTEMBER 2007 t td CS DAC Updated t Delay t sck t Lead t wsck t Lag t wsck t DSCLK SCLK t su t ho BIT15 (MSB) SDI BIT14 BIT13, . . . ,1 BIT0 --- Don't Care Figure 1. DAC8830 Timing Diagram Case1: LDAC tied to LOW t td CS DAC Updated t Delay t sck t Lead t wsck t Lag t wsck t DSCLK SCLK t su t ho SDI BIT 15 (MSB) LDAC BIT 14 BIT 13, . . .
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DAC8830 DAC8831 www.ti.com SLAS449D – FEBRUARY 2005 – REVISED SEPTEMBER 2007 TIMING CHARACTERISTICS: VDD = +5 V (1) (2) At –40°C to +85°C, unless otherwise noted.
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DAC8830 DAC8831 www.ti.com SLAS449D – FEBRUARY 2005 – REVISED SEPTEMBER 2007 TYPICAL CHARACTERISTICS: VDD = +5 V At TA = +25°C and VREF = +2.5 V, unless otherwise noted. LINEARITY ERROR vs DIGITAL INPUT CODE DIFFERENTIAL LINEARITY ERROR vs DIGITAL INPUT CODE 1.00 1.00 TA = +25_C VREF = 2.5 V 0.50 0.50 0.25 0.25 0 −0.25 −0.25 −0.50 −0.75 −0.75 −1.
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DAC8830 DAC8831 www.ti.com SLAS449D – FEBRUARY 2005 – REVISED SEPTEMBER 2007 TYPICAL CHARACTERISTICS: VDD = +5 V (continued) At TA = +25°C and VREF = +2.5 V, unless otherwise noted. LINEARITY ERROR vs DIGITAL INPUT CODE DIFFERENTIAL LINEARITY ERROR vs DIGITAL INPUT CODE 1.00 1.00 TA = +25_ C VREF = 5 V TA = +25_C VREF = 5 V 0.75 0.50 0.50 0.25 0.25 DNL (LSB) INL (LSB) 0.75 0 −0.25 0 −0.25 −0.50 −0.50 −0.75 −0.75 −1.00 −1.
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DAC8830 DAC8831 www.ti.com SLAS449D – FEBRUARY 2005 – REVISED SEPTEMBER 2007 TYPICAL CHARACTERISTICS: VDD = +5 V (continued) At TA = +25°C and VREF = +2.5 V, unless otherwise noted. REFERENCE CURRENT vs CODE (UNIPOLAR MODE) REFERENCE CURRENT vs CODE (BIPOLAR MODE) 300 300 VREF = 2.5 V VREF = 2.
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DAC8830 DAC8831 www.ti.com SLAS449D – FEBRUARY 2005 – REVISED SEPTEMBER 2007 TYPICAL CHARACTERISTICS: VDD = +5 V (continued) At TA = +25°C and VREF = +2.5 V, unless otherwise noted. MAJOR-CARRY GLITCH (FALLING) MAJOR-CARRY GLITCH (RISING) VREF = 2.5V VREF = 2.5V 5V/div 5V/div LDAC LDAC VOUT VOUT 0.1V/div 0.1V/div Time (0.5ms/div) Time (0.5ms/div) Figure 21. Figure 22. DAC SETTLING TIME (FALLING) DAC SETTLING TIME (RISING) VREF = 2.5V 5V/div VREF = 2.
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DAC8830 DAC8831 www.ti.com SLAS449D – FEBRUARY 2005 – REVISED SEPTEMBER 2007 TYPICAL CHARACTERISTICS: VDD = +3 V At TA = +25°C and VREF = +2.5 V, unless otherwise noted. LINEARITY ERROR vs DIGITAL INPUT CODE DIFFERENTIAL LINEARITY ERROR vs DIGITAL INPUT CODE 1.00 1.00 TA = +25_C VREF = 1.5 V 0.50 0.50 0.25 0.25 0 −0.25 −0.25 −0.50 −0.75 −0.75 −1.
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DAC8830 DAC8831 www.ti.com SLAS449D – FEBRUARY 2005 – REVISED SEPTEMBER 2007 TYPICAL CHARACTERISTICS: VDD = +3 V (continued) At TA = +25°C and VREF = +2.5 V, unless otherwise noted. LINEARITY ERROR vs DIGITAL INPUT CODE DIFFERENTIAL LINEARITY ERROR vs DIGITAL INPUT CODE 1.00 1.00 TA = +25_ C VREF = 3 V TA = +25_C VREF = 3 V 0.75 0.50 0.50 0.25 0.25 DNL (LSB) INL (LSB) 0.75 0 −0.25 0 −0.25 −0.50 −0.50 −0.75 −0.75 −1.00 −1.
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DAC8830 DAC8831 www.ti.com SLAS449D – FEBRUARY 2005 – REVISED SEPTEMBER 2007 TYPICAL CHARACTERISTICS: VDD = +3 V (continued) At TA = +25°C and VREF = +2.5 V, unless otherwise noted. REFERENCE CURRENT vs CODE (BIPOLAR MODE) DIGITAL FEEDTHROUGH 300 VREF = 2.5 V VREF = 1.5 V Reference Current (µA) 250 SDI 5V/div 200 150 VOUT 20mV/div 100 50 0 0 Time (50ns/div) 8192 16384 24576 32768 40960 49152 57344 65536 Digital Input Code Figure 38. Figure 39.
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DAC8830 DAC8831 www.ti.com SLAS449D – FEBRUARY 2005 – REVISED SEPTEMBER 2007 supply ranging from 2.7 V to 5 V, and typically consume 5 μA. Data are written to these devices in a 16-bit word format, via an SPI serial interface. To ensure a known power-up state, these parts are designed with a power-on reset function. The DAC8830 and DAC8831 are reset to zero code. In unipolar mode, the DAC8830 and DAC8831 are reset to 0 V, and in bipolar mode, the DAC8831 is reset to –VREF.
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DAC8830 DAC8831 www.ti.com SLAS449D – FEBRUARY 2005 – REVISED SEPTEMBER 2007 POWER-ON RESET Both devices have a power-on reset function to ensure the output is at a known state upon power-up. In the DAC8830 and DAC8831, at power-up, the DAC latch and Input Registers contain all 0s until new data are loaded from the input serial shift register. Therefore, after power-up, the output from pin VOUT of the DAC8830 is 0 V.
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DAC8830 DAC8831 www.ti.com SLAS449D – FEBRUARY 2005 – REVISED SEPTEMBER 2007 APPLICATION INFORMATION Unipolar Output Operation These DACs are capable of driving unbuffered loads of 60 kΩ. Unbuffered operation results in low supply current (typically 5 μA) and a low offset error. The DAC8830 provides a unipolar output swing ranging from 0 V to VREF. The DAC8831 can be configured to output both unipolar and bipolar voltages.
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DAC8830 DAC8831 www.ti.com SLAS449D – FEBRUARY 2005 – REVISED SEPTEMBER 2007 +5 V +2.5 V 0.1 µF VDD 0.1 µF + 10 µF OPA277 OPA704 OPA727 VREF−S VREF−F RINV RFB RFB +V CS SCLK SDI Serial Interface and Control Logic LDAC DAC INV VOUT VO = 0 to +VREF −V AGNDF Input Register DAC Latch AGNDS DAC8831 DGND Figure 46.
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DAC8830 DAC8831 www.ti.com SLAS449D – FEBRUARY 2005 – REVISED SEPTEMBER 2007 Bipolar Output Operation With the aid of an external operational amplifier, the DAC8831 may be configured to provide a bipolar voltage output. A typical circuit of such an operation is shown in Figure 47. The matched bipolar offset resistors RFB and RINV are connected to an external operational amplifier to achieve this bipolar output swing; typically, RFB = RINV = 28 kΩ. +5 V +2.5 V 0.1 µF 0.
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DAC8830 DAC8831 www.ti.com SLAS449D – FEBRUARY 2005 – REVISED SEPTEMBER 2007 Output Amplifier Selection For bipolar mode, a precision amplifier should be used, supplied from a dual power supply. This provides the ±VREF output. In a single-supply application, selection of a suitable operational amplifier may be more difficult because the output swing of the amplifier does not usually include the negative rail; in this case, AGND.
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DAC8830 DAC8831 www.ti.com SLAS449D – FEBRUARY 2005 – REVISED SEPTEMBER 2007 CROSS-REFERENCE The DAC8830 and DAC8831 have an industry-standard pinout configuration (see Table 3). Table 3.
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PACKAGE OPTION ADDENDUM www.ti.
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PACKAGE OPTION ADDENDUM www.ti.
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PACKAGE OPTION ADDENDUM www.ti.com 31-Oct-2013 Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes.
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PACKAGE MATERIALS INFORMATION www.ti.com 4-Nov-2013 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 DAC8830IBDR SOIC D 8 2500 330.0 12.4 6.4 5.2 2.1 8.0 12.0 Q1 DAC8830ICDR SOIC D 8 2500 330.0 12.4 6.4 5.2 2.1 8.0 12.0 Q1 DAC8830IDR SOIC D 8 2500 330.0 12.4 6.4 5.2 2.1 8.0 12.0 Q1 DAC8831IBDR SOIC D 14 2500 330.
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PACKAGE MATERIALS INFORMATION www.ti.com 4-Nov-2013 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) DAC8830IBDR SOIC D 8 2500 367.0 367.0 35.0 DAC8830ICDR SOIC D 8 2500 367.0 367.0 35.0 DAC8830IDR SOIC D 8 2500 367.0 367.0 35.0 DAC8831IBDR SOIC D 14 2500 367.0 367.0 38.0 DAC8831IBRGYT VQFN RGY 14 250 210.0 185.0 35.0 DAC8831ICDR SOIC D 14 2500 367.0 367.0 38.
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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 JESD46, latest issue, and to discontinue any product or service per JESD48, latest issue. Buyers should obtain the latest relevant information before placing orders and should verify that such information is current and complete.