Data Sheet
AD5781
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, TMIN to TMAX, unless otherwise noted.
Table 3.
Parameter
Min
Typ
Max
Unit
Test Conditions/Comments
Resolution
18
Bits
Integral Nonlinearity Error (Relative
Accuracy)
0.5
±0.25
+0.5
LSB
B version, VREFP = +10 V, VREFN = 10 V
0.5
±0.25
+0.5
LSB
B version, VREFP = +10 V, VREFN = 0 V3 1
±0.5
+1
LSB
B version, VREFP = +5 V, VREFN = 0 V3 4
±2
+4
LSB
Differential Nonlinearity Error
0.5
±0.25
+0.5
LSB
VREFP = +10 V, VREFN = 10 V
0.5
±0.25
+0.5
LSB
VREFP = +10 V, VREFN = 0 V3 1
±0.5
+1
LSB
VREFP = +5 V, VREFN = 0 V3 Linearity Error Long-Term Stability
50.04
LSB
After 500 hours at TA = 125°C
0.05
LSB
After 1000 hours at TA = 125°C
0.03
LSB
After 1000 hours t TA = 100°C
Full-Scale Error
1.75
±0.25
+1.75
LSB
VREFP = +10 V, VREFN = 10 V3 2.75
±0.062
+2.75
LSB
VREFP = +10 V, VREFN = 0 V3 5.25
±0.2
+5.25
LSB
VREFP = +5 V, VREFN = 0 V3 1
±0.25
+1
LSB
VREFP = +10 V, VREFN = 10 V3, TA = 0°C to 105°C
1
±0.062
+1
LSB
VREFP = 10 V, VREFN = 0 V3, TA = 0°C to 105°C 1.5
±0.2
+1.5
LSB
VREFP = 5 V, VREFN = 0 V3, TA = 0°C to 105°C Full-Scale Error Temperature Coeffi
cient3±0.02
ppm FSR/°C
Zero-Scale Error
1.75
±0.025
+1.75
LSB
VREFP = +10 V, VREFN = 10 V3 2.5
±0.38
+2.5
LSB
VREFP = +10 V, VREFN = 0 V3 5.25
±0.19
+5.25
LSB
VREFP = +5 V, VREFN = 0 V3 1
±0.025
+1
LSB
VREFP = +10 V, VREFN = 10 V3, TA = 0°C to 105°C
1
±0.38
+1
LSB
VREFP = 10 V, VREFN = 0 V3, TA = 0°C to 105°C 1.5
±0.19
+1.5
LSB
VREFP = 5 V, VREFN = 0 V3, TA = 0°C to 105°C Zero-Scale Error Temperature Coefficien
t3±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 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
Unbuffered output, 10 M||20 pF load
Output Voltage Settling Time
1
s
buffer 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