AD5421 Analog Devices, AD5421 Datasheet - Page 29

• Manufacturer Part Number: AD5421
• Description: 16-Bit, Serial Input, Loop-Powered, 4mA to 20mA DAC
• Manufacturer: Analog Devices

Specifications of AD5421

• Resolution (bits): 16bit
• Dac Settling Time: 50µs
• Max Pos Supply (v): +52V
• Single-supply: Yes
• Dac Type: Current Out
• Dac Input Format: SPI

Data Sheet
OFFSET ADJUST REGISTER
The offset adjust register is a read/write register and is addressed as described in Table 11.
Table 20. Offset Adjust Register Bit Map
MSB
D15
Table 21. Offset Adjust Register Adjustment Range
Offset Adjust Register Data
65535
65534
…
32769
32768 (default)
32767
…
1
0
GAIN ADJUST REGISTER
The gain adjust register is a read/write register and is addressed as described in Table 11.
Table 22. Gain Adjust Register Bit Map
MSB
D15
Table 23. Gain Adjust Register Adjustment Range
Gain Adjust Register Data
65535 (default)
65534
…
32769
32768
32767
…
1
0
D14
D14
D13
D13
D12
D12
D11
D11
D10
D10
D9
D9
16-bit offset adjust data
16-bit gain adjust data
Rev. C | Page 29 of 36
D8
D8
D7
Digital Offset Adjustment (LSBs)
+32767
+32766
…
+1
0
−1
…
−32767
−32768
D7
Digital Gain Adjustment at Full-Scale Output (LSBs)
0
−1
…
−32767
−32768
−32769
…
−65534
−65535
D6
D6
D5
D5
D4
D4
D3
D3
D2
D2
D1
D1
AD5421
LSB
D0
LSB
D0