DAC7541 Burr-Brown Corporation, DAC7541 Datasheet
DAC7541
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DAC7541 Summary of contents
Page 1
... Cable: BBRCORP © 1987 Burr-Brown Corporation DESCRIPTION The Burr-Brown DAC7541A is a low cost 12-bit, four-quadrant multiplying digital-to-analog converter. Laser-trimmed thin-film resistors on a monolithic CMOS circuit provide true 12-bit integral and differ- ential linearity over the full specified temperature range. ...
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... V min to V max max 100 500 A max = V = 0V, output amp is OPA606 except where stated. PIN 1 PIN 2 DAC7541A ( + UNITS A A MAX MIN 100 — ns typ 1000 — nV-s typ 1.0 — mVp-p max 0.6 — ...
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... ELECTROSTATIC DISCHARGE SENSITIVITY The DAC7541A is an ESD (electrostatic discharge) sensi- tive device. The digital control inputs have a special FET structure, which turns on when the input exceeds the supply by 18V, to minimize ESD damage. However, permanent damage may occur on unconnected devices subject to high energy electrostatic fields ...
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... DIE TOPOLOGY DAC7541A TYPICAL PERFORMANCE CURVES +15V, unless otherwise noted GAIN ERROR vs SUPPLY VOLTAGE 3 5/2 2 3 Supply Voltage (V) LINEARITY vs SUPPLY VOLTAGE 3/2 5/4 1 3/4 1/2 1 Supply Voltage (V) ® DAC7541A PAD Substrate Bias: Isolated. NC: No Connection. ...
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... Most applications require the addition of a voltage or current reference and an output operational amplifier. A simplified circuit of the DAC7541A is shown in Figure 1. The R-2R inverted ladder binarily divides the input currents that are switched between I switching allows a constant current to be maintained in each ladder leg independent of the input code ...
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... FIGURE 2. DAC7541A Equivalent Circuit (All inputs LOW). amplifier, board layout, and power supply decoupling will all affect the dynamic performance of the DAC7541A. The use of a compensation capacitor may be required when high- speed operational amplifiers are used. It may be connected across the amplifier’s feedback resistor to provide the nec- essary phase compensation to critically dampen the output ...
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... V +10V REF 4095 0 V – V OUT REF 4096 Where the B digital input is HIGH the B digital input is LOW 200k OPA604 10k +V CC 20k 20k 10k V OUT A 2 OPA604 or 5k 1/2 OPA2604 – 1 2048 DAC7541A ® ...
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... DIGITALLY CONTROLLED GAIN BLOCK The DAC7541A may be used in a digitally controlled gain block as shown in Figure 7. This circuit gives a range of gain from one (all bits = one) to 4096 (LSB = one). The transfer function is: – OUT • • • All bits off is an illegal state, as division by zero is impos- sible (no op amp feedback) ...