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MFG:ADI D/C:09
Part Number: AD7547
MFG: ADI
D/C: 09
Description: The AD7547 contains two 12-bit current output DACs on one monolithic chip. Also on-chip are the level ...
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AD7547
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DataSheet
General Description
AD7547 General Description
The AD7547 contains two 12-bit current output DACs on one monolithic chip. Also on-chip are the level shifters, data registers and control logic for easy microprocessor interfacing. There are 12 data inputs. CSA, CSB, WR control DAC selection and loading. Data is latched into the DAC registers on the rising edge of WR. The device is speed compatible with most microprocessors and accepts TTL, 74HC and 5 V CMOS logic level inputs.
The D/A converters provide 4-quadrant multiplication capabilities with separate reference inputs and feedback resistors. Monolithic construction ensures that thermal and gain error tracking is excellent. 12-bit monotonicity is guaranteed for both DACs over the full temperature range.
The AD7547 is manufactured using the Linear Compatible CMOS (LC2MOS) process. This allows fast digital logic and precision linear circuitry to be fabricated on the same die.
AD7547 Maximum Ratings
VDD to DGND . . . . . . . . . . . . . . . . . . . . . . . . . . 0.3 V, +17 V
VREFA, VREFB to AGND . . . . . . . . . . . . . . . . . . .. . . . . . . ±25 V
VRFBA, VRFBB to AGND . . . . . . . . . . . . . . . . . . . .. . . . . . ±25 V
Digital Input Voltage to DGND . . . . . ...... . 0.3 V, VDD +0.3 V
IOUTA, IOUTB to DGND . . . . . . . . . . ... . . 0.3 V, VDD +0.3 V
AGND to DGND . . . . . . . . . . . . . . . . .... . 0.3 V, VDD +0.3 V
Power Dissipation (Any Package)
To +75°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .450 mW
Derates above +75°C . . . . . . . . . . . . . . . . . . . . 6 mW/°C
Operating Temperature Range
Commercial Plastic (J, K, L Versions) . . . . 40°C to +85°C
Industrial Hermetic (A, B, C Versions) . . . 40°C to +85°C
Extended Hermetic (S, T, U Versions) . . 55°C to +125°C
Storage Temperature . . . . . . . . . . . . . .65°C to +150°C
Lead Temperature (Soldering, 10 secs) . . . . . . . . ... +300°C
VREFA, VREFB to AGND . . . . . . . . . . . . . . . . . . .. . . . . . . ±25 V
VRFBA, VRFBB to AGND . . . . . . . . . . . . . . . . . . . .. . . . . . ±25 V
Digital Input Voltage to DGND . . . . . ...... . 0.3 V, VDD +0.3 V
IOUTA, IOUTB to DGND . . . . . . . . . . ... . . 0.3 V, VDD +0.3 V
AGND to DGND . . . . . . . . . . . . . . . . .... . 0.3 V, VDD +0.3 V
Power Dissipation (Any Package)
To +75°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .450 mW
Derates above +75°C . . . . . . . . . . . . . . . . . . . . 6 mW/°C
Operating Temperature Range
Commercial Plastic (J, K, L Versions) . . . . 40°C to +85°C
Industrial Hermetic (A, B, C Versions) . . . 40°C to +85°C
Extended Hermetic (S, T, U Versions) . . 55°C to +125°C
Storage Temperature . . . . . . . . . . . . . .65°C to +150°C
Lead Temperature (Soldering, 10 secs) . . . . . . . . ... +300°C
AD7547 Features
·Two 12-Bit DACs in One Package
·DAC Ladder Resistance Matching: 0.5%
·Space Saving Skinny DIP and Surface
Mount Packages
·4-Quadrant Multiplication
·Low Gain Error (1 LSB max Over Temperature)
·Fast Interface Timing
AD7547 Typical Application
·Automatic Test Equipment
·Programmable Filters
·Audio Applications
·Synchro Applications
·Process Control
AD7547
PDF/DataSheet Download
- Datasheet: AD7547
- File Size: 194430 KB
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