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SP9316B-4 Datasheet(PDF) 4 Page - Sipex Corporation |
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SP9316B-4 Datasheet(HTML) 4 Page - Sipex Corporation |
4 / 8 page Corporation SIGNAL PROCESSING EXCELLENCE 184 USING THE SP9316 General Configuration The SP9316 can be configured for unipolar voltage operation (2-quadrant multiplication) or bipolar voltage operation (4-quadrant multi- plication.) Coding is binary and offset binary respectively. In bipolar operation both the ref- erence signal and the number represented by the digital input applied to the SP9316 may be of either positive or negative polarity. Pin 20 — MSB LATCH — MSB Latch control. Level–triggered. Logic 0 strobes data into latch; logic 1 allows data to update DAC directly. Pin 21 — DB 16 — Data Bit 16 (LSB) . Pin 22 — DB 15 — Data Bit 15. Pin 23 — DB 14 — Data Bit 14. Pin 24 — DB 13 — Data Bit 13. PIN ASSIGNMENTS Pin 1 — DB 12 — Data Bit 12. Pin 2 — DB 11 — Data Bit 11. Pin 3 — DB 10 — Data Bit 10. Pin 4 — DB 9 — Data Bit 9. Pin 5 — DB 8 — Data Bit 8. Pin 6 — DB 7 — Data Bit 7. Pin 7 — DB 6 — Data Bit 6. Pin 8 — DB 5 — Data Bit 5. Pin 9 — DB 4 — Data Bit 4. Pin 10 — DB 3 — Data Bit 3. Pin 11 — DB 2 — Data Bit 2. Pin 12 — DB 1 — Data Bit 1 (MSB). Pin 13 — V REF In — Voltage Reference Input. Pin 14 — R FB — Feedback Resistor. Pin 15 — I OUT2 — Current Output. Pin 16 — I OUT1 — Inverted Current Output. Pin 17 — VDD — +15V Power Supply. Pin 18 — GND — Analog GND. Pin 19 — LSB LATCH — LSB Latch control. Level–triggered. Data is latched with strobe at logic 0; logic 1 allows data to update DAC directly. FEATURES… The SP9316 is a 16-bit, monolithic CMOS, multiplying digital-to-analog converter with two 8-bit input registers for direct microprocessor interface. It offers two– and four–quadrant mul- tiplying capability with TTL/DTL and CMOS logic compatibility. It is ideally suited for Auto- mated Test Equipment, medical instrumenta- tion and high–energy physics applications. Op- erating from a single +15V supply, power dissi- pation is less than 60mW. High accuracy and monotonicity are achieved without laser–trim- ming through the use of a highly accurate, low– TCR thin–film resistor process. A unique digital decoding technique of the 4 MSB’s results in excellent linearity and stability over both time and temperature. The SP9316 is packaged in hermetic 24-pin ceramic or molded plastic. Models are available for operation over the commercial (0 °C to 70°C) and military (–55°C to +125 °C) temperature ranges. For product screened to MIL–STD–883, please consult the factory. Figure 1. Unipolar Operation VREF BIT 1 (MSB) MSB LATCH LSB LATCH _ + A SP9316 400Ω DIGITAL INPUT +15V IOUT1 IOUT2 ROS VOUT All "ones": VOUT = –VREF + 1LSB 0.01µF 1µF + 17 18 13 14 RFB 16 15 BIT 16 (LSB) GND NOTE: To maintain specified linearity, the external amplifier (A) must be nulled. Apply an "all zeroes" digital input and adjust ROS for VOUT = 0±1mV. |
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Similar Description - SP9316B-4 |
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