AD7528 Analog Devices, AD7528 Datasheet
AD7528
Specifications of AD7528
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AD7528 Summary of contents
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... TTL/CMOS compatible input port. Control input DAC A/DAC B determines which DAC loaded. The AD7528’s load cycle is similar to the write cycle of a ran- dom access memory and the device is bus compatible with most 8-bit microprocessors, including 6800, 8080, 8085, Z80. ...
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... AD7528–SPECIFICATIONS Parameter Version 2 STATIC PERFORMANCE Resolution All Relative Accuracy Differential Nonlinearity All Gain Error Gain Temperature Coefficient Gain/ Temperature All Output Leakage Current OUT A (Pin 2) All OUT B (Pin 20) All Input Resistance (V ...
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... Temperature Ranges are Versions: – + Versions: – + Versions: – +125 C 2 Specifications applies to both DACs in AD7528. 3 Guaranteed by design but not production tested. 4 Logic inputs are MOS Gates. Typical input current (+ less than 1 nA. ...
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... Figure 3. To minimize power supply currents recommended that the digital input voltages be as close to the t supply rails ( The AD7528 may be operated with any supply voltage in the 0 range 5 V levels are CMOS compatible only, i.e., 1.5 V and 13 ...
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... AGND 10k R10 OUT 1 R3 20k R12 5k AGND –5– AD7528 Table I. Unipolar Binary Code Table DAC Latch Contents Analog Output MSB LSB (DAC A or DAC B) – – – – ...
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... Figure 7. Suggested PC Board Layout for AD7528 with AD644 Dual Op Amp ship between input frequency and channel to channel isolation. Figure 7 shows a printed circuit layout for the AD7528 and the AD644 dual op amp which minimizes feedthrough and crosstalk. SINGLE SUPPLY APPLICATIONS The AD7528 DAC R-2R ladder termination resistors are con- nected to AGND within the device ...
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... AD7528* WR DB0 DAC B AD0–AD7 DB7 Figure 12. AD7528 Dual DAC to 8085 CPU Interface In the circuit of Figure 13 the AD7528 is used to implement a programmable window comparator. DACs A and B are loaded V CC with the required upper and lower voltage limits for the test respectively. If the test input is not within the programmed ...
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... AD7528 DIGITALLY CONTROLLED DUAL TELEPHONE ATTENUATOR In this configuration the AD7528 functions as a 2-channel digi- tally controlled attenuator. Ideal for stereo audio and telephone signal level control applications. Table IV gives input codes vs. attenuation for 15.5 dB range. Attenuation dB Input Code = 256 10 exp ...