AD7849 데이터 시트보기 (PDF) - Analog Devices
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AD7849 Datasheet PDF : 20 Pages
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AD7849
SPECIFICATIONS
VDD = 14.25 V to 15.75 V; VSS = −14.25 V to −15.75 V; VCC = 4.75 V to 5.25 V; VOUT loaded with 2 kΩ, 200 pF to 0 V; VREF+ = 5 V; ROFS
connected to 0 V; TA = TMIN to TMAX, unless otherwise noted. Temperature range for A, B, C versions is −40°C to +85°C.
Table 1.
Parameter
RESOLUTION
A Version
14
UNIPOLAR OUTPUT
Relative Accuracy at 25°C
TMIN to TMAX
Differential Nonlinearity
±4
±5
±0.25
Gain Error at 25°C
±1
TMIN to TMAX
±4
Offset Error at 25°C
±1
TMIN to TMAX
±6
Gain Temperature Coefficient1 ±2
Offset Temperature Coefficient1 ±2
BIPOLAR OUTPUT
Relative Accuracy at 25°C
TMIN to TMAX
Differential Nonlinearity
±2
±3
±0.25
Gain Error at 25°C
±1
TMIN to TMAX
±4
Offset Error at 25°C
±0.5
TMIN to TMAX
±3
Bipolar Zero Error at 25°C
±0.5
TMIN to TMAX
±4
Gain Temperature Coefficient1 ±2
Offset Temperature Coefficient1 ±2
Bipolar Zero Temperature
Coefficient1
REFERENCE INPUT
Input Resistance
VREF+ Range
VREF− Range
OUTPUT CHARACTERISTICS
Output Voltage Swing
Resistive Load
Capacitive Load
Output Resistance
Short-Circuit Current
±2
25
43
VSS + 6 to
VDD − 6
VSS + 6 to
VDD − 6
VSS + 4 to
VDD − 4
2
200
0.3
±25
B Version
16
±6
±16
±0.9
±4
±16
±4
±24
±2
±2
±3
±8
±0.9
±4
±16
±2
±12
±2
±12
±2
±2
±2
25
43
VSS + 6 to
VDD − 6
VSS + 6 to
VDD − 6
VSS + 4 to
VDD − 4
2
200
0.3
±25
C Version
16
±4
±8
±0.5
±4
±16
±4
±16
±2
±2
±2
±4
±0.5
±4
±16
±2
±8
±2
±8
±2
±2
±2
25
43
VSS + 6 to
VDD − 6
VSS + 6 to
VDD − 6
VSS + 4 to
VDD − 4
2
200
0.3
±25
Unit
Bits
LSB typ
LSB max
LSB max
LSB typ
LSB max
LSB typ
LSB max
ppm FSR/
°C typ
ppm FSR/
°C typ
LSB typ
LSB max
LSB max
LSB typ
LSB max
LSB typ
LSB max
LSB typ
LSB max
ppm FSR/
°C typ
ppm FSR/
°C typ
ppm FSR/
°C typ
kΩ min
kΩ max
V
V
Test Conditions/Comments
A version: 1 LSB = 2 (VREF+ − VREF−)/214;
B, C versions: 1 LSB = 2 (VREF+ − VREF−)/216
VREF− = 0 V, VOUT = 0 V to 10 V
All grades guaranteed monotonic
over temperature
VOUT load = 10 MΩ
VREF− = 5 V, VOUT = −10 V to +10 V
All grades guaranteed monotonic
over temperature
VOUT load = 10 MΩ
Resistance from VREF+ to VREF−
Typically 34 kΩ
V max
kΩ min
pF max
Ω typ
mA typ
To 0 V
To 0 V
Voltage range: −10 V to +10 V
Rev. C | Page 3 of 20
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