Datasheet

Data Sheet AD5781
Rev. D | Page 3 of 28
SPECIFICATIONS
V
DD
= +12.5 V to +16.5 V, V
SS
= −16.5 V to −12.5 V, V
REFP
= +10 V, V
REFN
= −10 V, V
CC
= +2.7 V to +5.5 V, IOV
CC
= +1.71 V to +5.5 V,
R
L
= unloaded, C
L
= unloaded, T
MIN
to T
MAX
, unless otherwise noted.
Table 3.
A, B Version
1
Parameter Min Typ Max Unit Test Conditions/Comments
STATIC PERFORMANCE
2
Resolution 18 Bits
Integral Nonlinearity Error (Relative
Accuracy)
−0.5 ±0.25 +0.5 LSB B version, V
REFP
= +10 V, V
REFN
= −10 V
−0.5 ±0.25 +0.5 LSB B version, V
REFP
= +10 V, V
REFN
= 0 V
3
−1 ±0.5 +1 LSB B version, V
REFP
= +5 V, V
REFN
= 0 V
3
−4 ±2 +4 LSB A version
4
Differential Nonlinearity Error −0.5 ±0.25 +0.5 LSB V
REFP
= +10 V, V
REFN
= −10 V
−0.5 ±0.25 +0.5 LSB V
REFP
= +10 V, V
REFN
= 0 V
3
−1
±0.5
+1
LSB
V
REFP
= +5 V, V
REFN
= 0 V
3
Linearity Error Long-Term Stability
5
0.04 LSB After 500 hours at T
A
= 125°C
0.05 LSB After 1000 hours at T
A
= 125°C
0.03 LSB After 1000 hours t T
A
= 100°C
Full-Scale Error −1.75 ±0.25 +1.75 LSB V
REFP
= +10 V, V
REFN
= −10 V
3
−2.75 ±0.062 +2.75 LSB V
REFP
= +10 V, V
REFN
= 0 V
3
−5.25 ±0.2 +5.25 LSB V
REFP
= +5 V, V
REFN
= 0 V
3
−1 ±0.25 +1 LSB V
REFP
= +10 V, V
REFN
= −10 V
3
,
T
A
= 0°C to 105°C
−1 ±0.062 +1 LSB V
REFP
= 10 V, V
REFN
= 0 V
3
, T
A
= 0°C to 105°C
−1.5 ±0.2 +1.5 LSB V
REFP
= 5 V, V
REFN
= 0 V
3
, T
A
= 0°C to 105°C
Full-Scale Error Temperature Coefficient
3
±0.02 ppm FSR/°C
Zero-Scale Error −1.75 ±0.025 +1.75 LSB V
REFP
= +10 V, V
REFN
= −10 V
3
−2.5 ±0.38 +2.5 LSB V
REFP
= +10 V, V
REFN
= 0 V
3
−5.25 ±0.19 +5.25 LSB V
REFP
= +5 V, V
REFN
= 0 V
3
−1 ±0.025 +1 LSB V
REFP
= +10 V, V
REFN
= −10 V
3
,
T
A
= 0°C to 105°C
−1 ±0.38 +1 LSB V
REFP
= 10 V, V
REFN
= 0 V
3
, T
A
= 0°C to 105°C
−1.5 ±0.19 +1.5 LSB V
REFP
= 5 V, V
REFN
= 0 V
3
, T
A
= 0°C to 105°C
Zero-Scale Error Temperature Coefficient
3
±0.04 ppm FSR/°C
Gain Error −6 ±0.3 +6 ppm FSR V
REFP
= +10 V, V
REFN
= −10 V
3
−10 ±0.4 +10 ppm FSR V
REFP
= +10 V, V
REFN
= 0 V
3
−20 ±0.4 +20 ppm FSR V
REFP
= +5 V, V
REFN
= 0 V
3
Gain Error Temperature Coefficient
3
±0.04 ppm FSR/°C
R1, R
FB
Matching 0.01 %
OUTPUT CHARACTERISTICS
3
Output Voltage Range V
REFN
V
REFP
V
Output Slew Rate 50 V/µs Unbuffered output, 10 MΩ||20 pF load
Output Voltage Settling Time 1 µs 10 V step to 0.02%, using AD845
buffer in unity-gain mode
1 µs 125 code step to ±1 LSB
6
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 µV p-p DAC code = midscale, 0.1 Hz to
10 Hz bandwidth
7