AD5421 Analog Devices, AD5421 Datasheet - Page 18

• 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

AD5421
2.5012
2.5010
2.5008
2.5006
2.5004
2.5002
2.5000
2.4998
2.4996
2.4994
Figure 36. REFOUT1 Voltage vs. Temperature, 60 Devices Shown
30
25
20
15
10
5
0
Figure 37. REFOUT1 Temperature Coefficient Histogram
–40
60 DEVICES SHOWN
–20
TEMPERATURE COEFFICIENT (ppm/°C)
0
(C Grade Device)
(C Grade Device)
TEMPERATURE (°C)
20
40
MEAN TC = 1.5ppm/°C
60
80
100
Rev. C | Page 18 of 36
250
200
150
100
250
200
150
100
50
50
0
0
–40
Figure 39. On-Chip ADC Code vs. V
0
V
EXT NMOS
T
A
Figure 38. On-Chip ADC Code vs. Die Temperature
LOOP
= 25°C
–20
= 24V
0.5
V
LOOP
0
DIE TEMPERATURE (°C)
PIN INPUT VOLTAGE (V)
1.0
20
40
1.5
LOOP
Pin Input Voltage
60
V
EXT NMOS
R
I
2.0
LOOP
Data Sheet
LOOP
LOAD
80
= 3.2mA
= 24V
= 250Ω
100
2.5