AD5570 Analog Devices, AD5570 Datasheet
AD5570
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AD5570 Summary of contents
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... Data acquisition systems General-purpose instrumentation GENERAL DESCRIPTION The AD5570 is a single 16-bit serial input, voltage output DAC that operates from supply voltages of ±11 ±16.5 V. Integral linearity (INL) and differential nonlinearity (DNL) are accurate to 1 LSB. During power-up, when the supply voltages are changing clamped via a low impedance path ...
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... Added ESD Parameter to Table 4 ................................................... 8 Changes to Ordering Guide .......................................................... 24 9/06—Rev Rev. B Updated Format..................................................................Universal Changes to Table 3............................................................................ 6 Changes to Figure 43...................................................................... 21 Changes to AD5570 to 8xC51 Interface Section ........................ 21 Changes to Ordering Guide .......................................................... 24 4/05—Rev Rev. A Changes to Table 1............................................................................ 3 Changes to Table 4............................................................................ 8 Added Figure 16.............................................................................. 12 Revision 0: Initial Version DAC Architecture ...
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... Rev Page AD5570 = 5 kΩ 200 pF to AGND Test Conditions/Comments See Figure 16 With ±11.4 V supplies With ±16.5 V supplies With ±11.4 V supplies With ±16.5 V supplies At 16 bits to ±0.5 LSB To 0.0003% 512 LSB code change Measured from 10% to 90% ± ...
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... AD5570 1 Parameter POWER REQUIREMENTS Power-Down Current 6 Power-Supply Sensitivity Power Dissipation 1 Temperature ranges: A and B versions = − 40°C to +85°C; W and Y versions = −40°C to +125°C. 2 Typical specifications at ±12 V/±15 V, +25°C. 3 These numbers are generated from the life test of the part. ...
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... LDAC rising edge to SYNC rising edge (no update) ns min CLR pulse width ) and timed from a voltage level DB0 Figure 2. Serial Interface Timing Diagram Rev Page REFGND = AGND = DGND = REF +V )/ AD5570 = 5 kΩ, L ...
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... AD5570 TIMING CHARACTERISTICS DAISY-CHAINING AND READBACK V = +12 V ± 5 −12 V ± 200 pF to AGND; all specifications T L Table Parameter Limit MIN f 2 MAX t 500 1 t 200 2 t 200 ...
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... SCLK SYNC SDIN DB15 (N) LDAC SDO DB15 DB0 ( DB15 (N) Figure 4. Readback Timing Diagram Rev Page AD5570 DB0 ( DB14 (N) DB0 (N) ...
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... AD5570 ABSOLUTE MAXIMUM RATINGS T = 25°C, unless otherwise noted. A Table 4. Parameter V to AGND, AGNDS, DGND AGND, AGNDS, DGND SS AGND, AGNDS to DGND REFGND to AGND, ADNDS REFIN to AGND, AGNDS REFIN to REFGND Digital Inputs to DGND V to AGND, AGNDS OUT SDO to DGND Operating Temperature Range ...
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... REFIN REFGND REFIN CLR REFGND 3 14 AD5570 LDAC OUT TOP VIEW SYNC AGNDS 5 12 (Not to Scale) SCLK AGND 6 11 SDIN SDO DGND 8 9 Figure 5. Pin Configuration OUT Rev Page AD5570 to AGND. The contents of the registers ...
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... DAC transfer function. Monotonicity A DAC is monotonic if the output either increases or remains constant for increasing digital inputs. The AD5570 is mono- tonic over its full operating temperature range. Differential Nonlinearity (DNL) Differential nonlinearity is the difference between the measured change and the ideal 1 LSB change between any two adjacent codes. A specified differential nonlinearity of ± ...
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... CODE / ±15V DD SS REFIN = +5V 0 –40 – TEMPERATURE (° ±15V DD SS REFIN = +5V 0 –40 – TEMPERATURE (°C) AD5570 60k = ± 100 120 /V = ± 100 120 /V = ± ...
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... AD5570 1 ±12V DD SS 0.8 REFIN = +5V 0.6 0.4 0.2 0 –0.2 –0.4 –0.6 –0.8 –1.0 –40 – TEMPERATURE (°C) Figure 12. Integral Nonlinearity vs. Temperature ±12V DD SS 0.8 REFIN = +5V 0.6 0.4 0.2 0 –0.2 –0.4 –0.6 –0.8 –1.0 –40 – TEMPERATURE (°C) Figure 13. Differential Nonlinearity vs. Temperature ...
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... Figure 21. Integral Nonlinearity Error vs. Reference Voltage ± 5 25°C A REFIN = 5V 4 4.0 3 3.0 2.5 2.0 11.4 12.4 13 Figure 22 vs 25°C A REFIN = + POWER-DOWN POWER-DOWN 0 11.4 12.4 13.4 14.4 SUPPLY VOLTAGE (V) Figure 23 Power-Down vs. Supply Voltage DD SS AD5570 5.5 6.0 6.5 15.4 16.4 15.4 16.4 ...
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... AD5570 ±12V OR ±15V DD SS –1 REFIN = 5V –2 –3 –4 –5 –6 –7 –8 –9 –10 –40 – TEMPERATURE (°C) Figure 24. Offset Error vs. Temperature 0 REFIN = +5V – ±15V – –3 –4 – ±12V DD SS –6 –7 –8 – ...
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... REFIN M 1.0Ωms 500kS/s 20µs/PT A CH1 0.0V Figure 34. Peak-to-Peak Noise (100 kHz Bandwidth +15V –15V SS REFIN = + 25°C A RAMP TIME = 100µ 10V/DIV 10mV/DIV OUT 100µs/DIV Figure 35 Power-Up OUT DD SS AD5570 = ± ...
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... The AD5570 is a single 16-bit serial input, voltage output DAC. It operates from supply voltages of ±11 ±16.5 V, and has a buffered voltage output ±13.6 V. Data is written to the AD5570 in a 16-bit word format, via a 3-wire serial interface. The device also offers an SDO pin, available for daisy-chaining or readback. ...
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... If more than 16 clock pulses are applied, the data ripples out of the shift resister and appears on the SDO line. By connecting this line to the SDIN input on the next AD5570 in the chain, a multi DAC interface can be constructed. One data transfer cycle of 16 SCLK pulses is required for each DAC in the system ...
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... AD5570 Readback The AD5570 allows the data contained in the DAC register to be read back, if required. As with daisy chaining, an external pull-up resistor of ~5 kΩ on SDO is required. The data in the DAC register is available on SDO on the falling edges of SCLK when SYNC is low. On the 16 th SCLK edge, SDO is updated to repeat SDIN with a delay of 16 clock cycles ...
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... Because of the extremely high accuracy of this device, system design issues (such as grounding and contact resistance) are very important. The AD5570, with ±10 V output, has an LSB size of 305 μV. Therefore, series wiring and connector resistances of very small values can cause voltage drops of an LSB. For this reason, the AD5570 offers a force/sense output configuration ...
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... The power supply lines of the AD5570 use as large a trace as pos- sible to provide low impedance paths and reduce the effects of glitches on the power supply line. Fast switching signals such as ...
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... MC68HC11. SCK of the MC68HC11 drives the SCLK of the AD5570, the MOSI output drives the serial data line (SDIN) of the AD5570, and the MISO input is driven from SDO. The SYNC is driven from one of the port lines, in this case, PC7. ...
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... EVALUATION BOARD The AD5570 comes with a full evaluation board to aid designers AD5570* in evaluating the high performance of the part with minimal effort. The evaluation board requires a power supply, a PC, SDO and an oscilloscope ...
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... LK5 REF REFIN REFGND REFGND AGND DD V AGNDS SS V DGND 4.7kΩ R6 4.7kΩ R7 4.7kΩ R5 LK4 Figure 46. Evaluation Board Schematic Rev Page REFIN GND DD V AD5570 03760-043 ...
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... AD5570BRSZ-REEL7 −40°C to +85°C AD5570WRS −40°C to +125°C AD5570WRSZ −40°C to +125°C AD5570WRSZ-REEL −40°C to +125°C AD5570WRSZ-REEL7 −40°C to +125°C AD5570YRS −40°C to +125°C AD5570YRS-REEL −40°C to +125°C AD5570YRS-REEL7 −40°C to +125°C AD5570YRSZ − ...