
Data Sheet
AD5791
Rev. D | Page 3 of 28
SPECIFICATIONS
VDD = 12.5 V to 16.5 V, VSS = 16.5 V to 12.5 V, VREFP = 10 V, VREFN = 10 V, VCC = 2.7 V to +5.5 V, IOVCC = 1.71 V to 5.5 V,
RL = unloaded, CL = unloaded, all specifications TMIN to TMAX, unless otherwise noted.
Table 3.
Parameter
Min
Typ
Max
Unit
Test Conditions/Comments
Resolution
20
Bits
Integral Nonlinearity Error (Relative Accuracy)
1
±0.25
+1
LSB
B version, VREFP = +10 V, VREFN = 10 V,
TA = 0°C to 105°C
1.5
±0.25
+1.5
LSB
B version, VREFP = +10 V, VREFN = 10 V
1.5
±0.5
+1.5
LSB
B version, VREFP = 10 V, VREFN = 0 V3 3
±1
+3
LSB
B version, VREFP = 5 V, VREFN = 0 V3 4
±2
+4
LSB
Differential Nonlinearity Error
1
±0.5
+1
LSB
VREFP = +10 V, VREFN = 10 V
1.5
±0.75
+1.5
LSB
VREFP = 10 V, VREFN = 0 V
2.5
±1
+2.5
LSB
VREFP = 5 V, VREFN = 0 V
Linearity Error Long Term Stabili
ty50.16
LSB
After 500 hours at TA = 125°C
0.19
LSB
After 1000 hours at TA = 125°C
0.11
LSB
After 1000 hours at TA = 100°C
Full-Scale Error
7
±0.1
+7
LSB
VREFP = +10 V, VREFN = 10 V3 11
±0.25
+11
LSB
VREFP = 10 V, VREFN = 0 V3 21
±0.8
+21
LSB
VREFP = 5 V, VREFN = 0 V3 4
±0.1
+4
LSB
VREFP = +10 V, VREFN = 10 V3, TA = 0°C to 105°C 4
±0.25
+4
LSB
VREFP = 10 V, VREFN = 0 V3, TA = 0°C to 105°C 6
±0.8
+6
LSB
VREFP = 5 V, VREFN = 0 V3, TA = 0°C to 105°C Full-Scale Error Temperature Coefficient
±0.02
ppm FSR/°C
Zero-Scale Error
7
±0.1
+7
LSB
VREFP = +10 V, VREFN = 10 V3 10
±0.15
+10
LSB
VREFP = 10 V, VREFN = 0 V3 21
±0.75
+21
LSB
VREFP = 5 V, VREFN = 0 V3 4
±0.1
+4
LSB
VREFP = +10 V, VREFN = 10 V3, TA = 0°C to 105°C 4
±0.15
+4
LSB
VREFP = 10 V, VREFN = 0 V3, TA = 0°C to 105°C 6
±0.75
+6
LSB
VREFP = 5 V, VREFN = 0 V3, TA = 0°C to 105°C Zero-Scale Error Temperature Coefficie
nt3±0.04
ppm FSR/°C
Gain Error
6
±0.3
+6
ppm FSR
VREFP = +10 V, VREFN = 10 V3 10
±0.4
+10
ppm FSR
VREFP = 10 V, VREFN = 0 V3 20
±0.4
+20
ppm FSR
VREFP = 5 V, VREFN = 0 V3 6
±0.3
+6
ppm FSR
VREFP = +10 V, VREFN = 10 V3, TA = 0°C to 105°C 6
±0.4
+6
ppm FSR
VREFP = 10 V, VREFN = 0 V3, TA = 0°C to 105°C 7
±0.4
+7
ppm FSR
VREFP = 5 V, VREFN = 0 V3, TA = 0°C to 105°C Gain Error Temperature Coefficie
nt3±0.04
ppm FSR/°C
R1, RFB Matching
0.01
%
Output Voltage Range
VREFN
VREFP
V
Output Slew Rate
50
V/s
Output Voltage Settling Time
1
s
in unity-gain mode
1
s
Output Noise Spectral Density
7.5
nV/√Hz
at 1 kHz, DAC code = midscale
7.5
nV/√Hz
at 10 kHz, DAC code = midscale
7.5
nV/√Hz
At 100 kHz, DAC code = midscale
Output Voltage Noise
1.1
V p-p
DAC code = midscale, 0.1 Hz to 10 Hz