Datasheet

Data Sheet AD5780
Rev. E | 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 2.
A Version, B Version
1
Parameter Min Typ Max Unit Test Conditions/Comments
STATIC PERFORMANCE
2
Resolution 18 Bits
Integral Nonlinearity Error (Relative
Accuracy)
−0.85 +0.85 LSB B grade, V
REFP
= +10 V, V
REFN
= −10 V,
T
A
= 25°C
−1 +1 LSB B grade, V
REFx
= ±10 V, +10 V, and +5 V
−2 +2 LSB A grade, V
REFx
= ±10 V, +10 V, and +5 V
Differential Nonlinearity Error −0.25 +0.75 LSB B grade, V
REFx
= ±10 V, +10 V, and +5 V
−1 +1 LSB A grade, V
REFx
= ±10 V, +10 V, and +5 V
Long-Term Linearity Error Stability
3
0.025 LSB After 750 hours at T
A
= 135°C
Full-Scale Error
−3
±0.95
+3
LSB
V
REFP
= +10 V, V
REFN
= −10 V
−5.5 ±0.675 +0.5 LSB V
REFP
= 10 V, V
REFN
= 0 V
−10 ±0.45 +10 LSB V
REFP
= 5 V, V
REFN
= 0 V
Full-Scale Error Temperature
Coefficient
±0.026 ppm/°C V
REFP
= +10 V, V
REFN
= −10 V
Zero-Scale Error −4.8 ±0.325 +4.8 LSB V
REFP
= +10 V, V
REFN
= −10 V
−10 ±0.175 +10 LSB V
REFP
= 10 V, V
REFN
= 0 V
−20.5 ±0.225 +20.5 LSB V
REFP
= 5 V, V
REFN
= 0 V
Zero-Scale Error Temperature
Coefficient
±0.025 ppm/°C V
REFP
= +10 V, V
REFN
= −10 V
Gain Error −19 ±2.3 +19 ppm FSR V
REFP
= +10 V, V
REFN
= −10 V
−35
±1.9
+35
ppm FSR
V
REFP
= 10 V, V
REFN
= 0 V
−68 ±0.9 +68 ppm FSR V
REFP
= 5 V, V
REFN
= 0 V
Gain Error Temperature Coefficient ±0.018 ppm/°C V
REFP
= +10 V, V
REFN
= −10 V
R1, R
FB
Matching 0.015 %
OUTPUT CHARACTERISTICS
Output Voltage Range V
REFN
V
REFP
V
Output Voltage Settling Time 2.5 µs 10 V step to 0.02%, using the ADA4898-1
buffer in unity-gain mode
3.5 µs 500 code step to ±1 LSB
4
Output Noise Spectral Density 8 nV/√Hz At 1 kHz, DAC code = midscale
8 nV/√Hz At 10 kHz, DAC code = midscale
Output Voltage Noise 1.1 µV p-p DAC code = midscale, 0.1 Hz to
10 Hz bandwidth
Midscale Glitch Impulse
4
14 nV-sec V
REFP
= +10 V, V
REFN
= −10 V
3.5 nV-sec V
REFP
= 10 V, V
REFN
= 0 V
4 nV-sec V
REFP
= 5 V, V
REFN
= 0 V
MSB Segment Glitch Impulse
4
14 nV-sec V
REFP
= +10 V, V
REFN
= −10 V, see Figure 42
3.5 nV-sec V
REFP
= 10 V, V
REFN
= 0 V, see Figure 43
4 nV-sec V
REFP
= 5 V, V
REFN
= 0 V, see Figure 44
Output Enabled Glitch Impulse
57
nV-sec
On removal of output ground clamp
Digital Feedthrough 0.27 nV-sec
DC Output Impedance (Normal Mode) 3.4 kΩ
DC Output Impedance (Output
Clamped to Ground)
6 kΩ