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AD5781 数据表(PDF) 3 Page - Analog Devices

部件名 AD5781
功能描述  True 18-Bit, Voltage Output DAC 짹0.5 LSB INL, 짹0.5 LSB DNL
Download  28 Pages
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制造商  AD [Analog Devices]
网页  http://www.analog.com
标志 AD - Analog Devices

AD5781 数据表(HTML) 3 Page - Analog Devices

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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.
A, B Version1
Parameter
Min
Typ
Max
Unit
Test Conditions/Comments
STATIC PERFORMANCE2
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
A version4
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 Stability5
0.04
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 Coefficient3
±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 Coefficient3
±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 Coefficient3
±0.04
ppm FSR/°C
R1, RFB Matching
0.01
%
OUTPUT CHARACTERISTICS3
Output Voltage Range
VREFN
VREFP
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 LSB6
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 bandwidth7


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