DAC8822QB BURR-BROWN [Burr-Brown Corporation], DAC8822QB Datasheet
DAC8822QB
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DAC8822QB Summary of contents
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Burr Brown Products from Texas Instruments 16-Bit, Dual, Parallel Input, Multiplying FEATURES 0.5LSB DNL 1LSB INL Low Noise: 12nV/ Hz Low Power Operation per Channel at 2.7V DD 2mA Full-Scale Current, with V Settling Time: 0.5 ...
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... RELATIVE ACCURACY PRODUCT (LSB) DAC8822QB 2 DAC8822QC 1 (1) For the most current package and ordering information see the Package Option Addendum at the end of this document, or see the TI web site at www.ti.com. ...
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... Output noise density (1) Specified by design and characterization; not production tested. (2) All ac characteristic tests are performed in a closed-loop system using a = +2.7V to +5.5V virtual GND, GND = 0V, and V DD OUT CONDITIONS DAC8822QB INL DAC8822QC DNL Data = 0000h + Data = 0000h, Full temperature range Unipolar, data = FFFFh ...
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DAC8822 SBAS390A – DECEMBER 2006 – REVISED MARCH 2007 4 PIN ASSIGNMENTS DBT PACKAGE TSSOP-38 (TOP VIEW OFS ...
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PIN # NAME DESCRIPTION 1, 2, 24-28, D0-D15 Digital Input Data Bits D0 to D15. Signal level must be 30-38 Bipolar Offset Resistor A. Accepts up to 18V 2-quadrant mode, R OFS In 4-quadrant mode, ...
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DAC8822 SBAS390A – DECEMBER 2006 – REVISED MARCH 2007 TIMING AND FUNCTIONAL INFORMATION WR A0/1 DATA LDAC RS TIMING CHARACTERISTICS All specifications – +125° PARAMETER Data to WR setup time A0 ...
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CONTROL INPUTS RS WR LDAC Asynchronous operation. Reset the input and DAC register to '0' when the RSTSEL pin is tied to DGND, and midscale ...
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DAC8822 SBAS390A – DECEMBER 2006 – REVISED MARCH 2007 TYPICAL CHARACTERISTICS: V Channel A LINEARITY ERROR vs DIGITAL INPUT CODE 1 +25°C A 0.8 0.6 0.4 0.2 0 -0.2 -0.4 -0.6 -0.8 -1.0 0 8192 16384 24576 32768 ...
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TYPICAL CHARACTERISTICS: V Channel B DIFFERENTIAL LINEARITY ERROR vs DIGITAL INPUT CODE 1 +25 C ° A 0.8 0.6 0.4 0.2 0 -0.2 -0.4 -0.6 -0.8 -1.0 0 8192 16384 24576 32768 40960 49152 57344 65535 Code ...
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DAC8822 SBAS390A – DECEMBER 2006 – REVISED MARCH 2007 TYPICAL CHARACTERISTICS: V MIDSCALE DAC GLITCH V = +10V REF Code: 7FFFh to 8000h Time (0.2 s/div) m Figure 14. FULL-SCALE ERROR vs TEMPERATURE ...
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TYPICAL CHARACTERISTICS: V Channel A LINEARITY ERROR vs DIGITAL INPUT CODE 1 +25°C A 0.8 0.6 0.4 0.2 0 -0.2 -0.4 -0.6 -0.8 -1.0 0 8192 16384 24576 32768 40960 49152 57344 65535 Code Figure 18. LINEARITY ...
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DAC8822 SBAS390A – DECEMBER 2006 – REVISED MARCH 2007 TYPICAL CHARACTERISTICS: V Channel B LINEARITY ERROR vs DIGITAL INPUT CODE 1 +25°C A 0.8 0.6 0.4 0.2 0 -0.2 -0.4 -0.6 -0.8 -1.0 0 8192 16384 24576 32768 ...
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TYPICAL CHARACTERISTICS: V MIDSCALE DAC GLITCH V = +10V REF Code: 7FFFh to 8000h Time (0.2 s/div) m Figure 30. FULL-SCALE ERROR vs TEMPERATURE DAC ...
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DAC8822 SBAS390A – DECEMBER 2006 – REVISED MARCH 2007 TYPICAL CHARACTERISTICS: V SUPPLY CURRENT vs LOGIC INPUT VOLTAGE 180 160 V = +5.0V DD 140 120 100 +2. 0.5 1.0 1.5 ...
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The DAC8822 is a multiplying, dual-channel, current output, 16-bit DAC. The architecture, illustrated in Figure 40 R-2R ladder configuration with the three MSBs segmented. Each 2R leg of the ladder is either switched to GND or to ...
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DAC8822 SBAS390A – DECEMBER 2006 – REVISED MARCH 2007 DIGITAL INTERFACE The parallel bus interface of the DAC8822 is comprised of a 16-bit data bus D0—D15, address lines A0 and A1, and a WR control signal. Timing and control functionality ...
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APPLICATION INFORMATION (continued) BIPOLAR OUTPUT CIRCUIT The DAC8822 4-quadrant multiplying DAC, can be used to generate a bipolar output. The polarity of the full-scale output ( the inverse of the input reference voltage at V ...
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... DAC8822 REF REF GND Figure 44. Programmable Bidirectional Current Source Circuit CROSS-REFERENCE The DAC8822 has an industry-standard pinout. INL PRODUCT BIT (LSB) DAC8822QB 16 2 DAC8822QC Figure 44 to implement an improved Howland current pump D 65536 ) in the circuit is not suggested as a result of the change in the output ...
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... PACKAGING INFORMATION (1) Orderable Device Status DAC8822QBDBT ACTIVE DAC8822QBDBTR ACTIVE DAC8822QCDBT ACTIVE DAC8822QCDBTR ACTIVE (1) The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs. LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect. ...
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Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice. Customers should obtain the ...