AD7845BQ Analog Devices Inc, AD7845BQ Datasheet
AD7845BQ
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AD7845BQ Summary of contents
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FEATURES 12-Bit CMOS MDAC with Output Amplifier 4-Quadrant Multiplication Guaranteed Monotonic ( MIN Space-Saving 0.3" DIPs and 24- or 28-Terminal Surface Mount Packages Application Resistors On Chip for Gain Ranging, etc. 2 Low Power LC MOS APPLICATIONS ...
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AD7845–SPECIFICATIONS V connected load = 100 pF. All specifications T OUT FB OUT Parameter J Version K Version ACCURACY Resolution 12 12 Relative Accuracy ...
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... AD7845JN +70 C AD7845KN +70 C AD7845JP +70 C AD7845KP +70 C AD7845JR +70 C AD7845KR +70 C AD7845AQ – +85 C AD7845BQ – +85 C AD7845AR – +85 C AD7845BR – +85 C AD7845SQ/883B – +125 C AD7845TQ/883B – +125 C AD7845SE/883B – +125 C NOTES 1 Analog Devices reserves the right to ship either ceramic (D-24A) or cerdip (Q-24) hermetic packages ...
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AD7845 DIP, SOIC TERMINOLOGY LEAST SIGNIFICANT BIT This is the analog weighting of 1 bit of the digital word REF DAC. For the AD7845, 1 LSB = 12 2 RELATIVE ACCURACY Relative accuracy or endpoint nonlinearity is ...
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Figure 2. Frequency Response –1 Figure 5. THD vs. Frequency Figure 8. Unity Gain Inverter Pulse Response (Large Signal) REV. B Typical Performance Characteristics–AD7845 Figure 3. Output Voltage Swing vs. Resistive Load Figure 6. Typical AD7845 Linearity vs. ...
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AD7845 Pin Mnemonic 1 V OUT 2-11 DB11–DB2 12 DGND 13-14 DB1–DB0 REF 18 AGND CIRCUIT ...
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UNIPOLAR BINARY OPERATION Figure 13 shows the AD7845 connected for unipolar binary operation. When signal, the circuit performs IN 2-quadrant multiplication. The code table for Figure 13 is given in Table I. Figure 13. Unipolar Binary ...
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AD7845 CATION APPLI S CIRCUITS PROGRAMMABLE GAIN AMPLIFIER (PGA) The AD7845 performs a PGA function when connected as in Figure 15. In this configuration, the R-2R ladder is connected in the amplifier feedback loop the amplifier input resis- ...
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Figure 17. Programmable Current Sink 4–20 mA CURRENT LOOP The AD7845 provides an excellent way of making a 4-20 mA current loop circuit. This is basically a variation of the circuits in Figures 16 and 17 and is shown in ...
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AD7845 MICROPROCESSOR INTERFACING 16-BIT MICROPROCESSOR SYSTEMS Figures 19, 20 and 21 show how the AD7845 interfaces to three popular 16-bit microprocessor systems. These are the MC68000, 8086 and the TM32010. The AD7845 is treated as a memory-mapped peripheral to the ...
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Figure 23 and 24 are the interface circuits for the Z80 and MC6809 microprocessors. Again, these use the same basic format as the 8085A interface. Figure 23. AD7845 to Z80 Interface Figure 24. MC6809 Interface REV. B DIGITAL FEEDTHROUGH In ...
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AD7845 24-Lead Plastic DIP (N-24) 24-Lead Cerdip (Q-24) 24-Lead Ceramic DIP (D-24A) OUTLINE DIMENSIONS Dimensions shown in inches and (mm). 28-Terminal Leadless Ceramic Chip Carrier 28-Terminal Plastic Leaded Chip Carrier 0.6141 (15.60) 0.5985 (15.20 PIN 1 0.0500 0.0118 ...