AD5421 Analog Devices, AD5421 Datasheet - Page 7

• 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
Loop voltage = 24 V; REFIN = REFOUT1 (2.5 V internal reference); R
all specifications T
Table 2.
Parameter
ACCURACY, INTERNAL R
ACCURACY, EXTERNAL R
1
2
3
Temperature range: −40°C to +105°C; typical at +25°C.
Specifications guaranteed by design and characterization; not production tested.
Total unadjusted error is the total measured error (offset error + gain error + linearity error + output drift over temperature) after factory calibration of the AD5421.
System level total error can be reduced using the offset and gain registers.
Total Unadjusted Error (TUE)
Relative Accuracy (INL)
Offset Error
Offset Error TC
Gain Error
Gain Error TC
Full-Scale Error
Full-Scale Error TC
Total Unadjusted Error (TUE)
Relative Accuracy (INL)
Offset Error
Offset Error TC
Gain Error
Gain Error TC
Full-Scale Error
Full-Scale Error TC
1, 2
MIN
to T
SET
SET
MAX
(24 kΩ)
, unless otherwise noted.
3
3
Min
−0.157
−0.117
−0.004
−0.004
−0.04
−0.025
−0.128
−0.093
−0.157
−0.117
−0.133
−0.133
−0.004
−0.004
−0.029
−0.029
−0.11
−0.106
−0.133
−0.133
Typ
±0.0172
±0.0015
±0.0025
1
±0.0137
5
±0.0172
6
±0.0252
±0.0015
±0.0038
0.5
±0.0197
2
±0.0252
2
C Grade
Rev. C | Page 7 of 36
L
= 250 Ω; external NMOS connected; all loop current ranges;
Max
+0.157
+0.117
+0.004
+0.004
+0.04
+0.025
+0.128
+0.093
+0.157
+0.117
+0.133
+0.133
+0.004
+0.004
+0.029
+0.029
+0.11
+0.106
+0.133
+0.133
Unit
% FSR
% FSR
% FSR
% FSR
% FSR
% FSR
ppm FSR/°C
% FSR
% FSR
ppm FSR/°C
% FSR
% FSR
ppm FSR/°C
% FSR
% FSR
% FSR
% FSR
% FSR
% FSR
ppm FSR/°C
% FSR
% FSR
ppm FSR/°C
% FSR
% FSR
ppm FSR/°C
Test Conditions/Comments
T
T
T
T
T
Assumes ideal resistor
T
T
T
T
T
A
A
A
A
A
A
A
A
A
A
= 25°C
= 25°C
= 25°C
= 25°C
= 25°C
= 25°C
= 25°C
= 25°C
= 25°C
= 25°C
AD5421