AD7846 查看數據表（PDF） - Analog Devices
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AD7846 Datasheet PDF : 24 Pages
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AD7846
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, 1000 pF to 0 V; VREF+ = +5 V;
RIN connected to 0 V. All specifications TMIN to TMAX, unless otherwise noted.
Table 1.
Parameter1
RESOLUTION
UNIPOLAR OUTPUT
Relative Accuracy at +25°C
TMIN to TMAX
Differential Nonlinearity Error
Gain Error at +25°C
TMIN to TMAX
Offset Error at +25°C
TMIN to TMAX
Gain TC2
Offset TC2
BIPOLAR OUTPUT
Relative Accuracy at +25°C
TMIN to TMAX
Differential Nonlinearity Error
Gain Error at +25°C
TMIN to TMAX
Offset Error at +25°C
TMIN to TMAX
Bipolar Zero Error at +25°C
TMIN to TMAX
Gain TC2
Offset TC2
Bipolar Zero TC2
REFERENCE INPUT
Input Resistance
VREF+ Range
VREF− Range
OUTPUT CHARACTERISTICS
Output Voltage Swing
Resistive Load
Capacitive Load
Output Resistance
Short Circuit Current
DIGITAL INPUTS
VIH (Input High Voltage)
VIL (Input Low Voltage)
IIN (Input Current)
CIN (Input Capacitance)2
J, A Versions
16
±12
±16
±1
±12
±16
±12
±16
±1
±1
±6
±8
±1
±6
±16
±6
±16
±6
±12
±1
±1
±1
K, B Versions
16
±4
±8
±0.5
±6
±16
±6
±16
±1
±1
±2
±4
±0.5
±4
±16
±4
±12
±4
±8
±1
±1
±1
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/°Ctyp
ppm FSR/°Ctyp
ppm FSR/°Ctyp
Test Conditions/Comments
VREF− = 0 V, VOUT = 0 V to +10 V
1 LSB = 153 μV
All grades guaranteed monotonic
VOUT load = 10 MΩ
VREF− = –5 V, VOUT = −10 V to +10 V
1 LSB = 305 μV
All grades guaranteed monotonic
VOUT load = 10 MΩ
VOUT load = 10 MΩ
20
40
VSS + 6 to
VDD − 6
VSS + 6 to
VDD − 6
20
40
VSS + 6 to
VDD − 6
VSS + 6 to
VDD − 6
kΩ min
kΩ max
V min to
V max
V min to
V max
Resistance from VREF+ to VREF−
Typically 30 kΩ
VSS + 4 to
VDD − 3
2
1000
0.3
±25
VSS + 4 to
VDD − 3
2
1000
0.3
±25
V max
kΩ min
pF max
Ω typ
mA typ
To 0 V
To 0 V
To 0 V or any power supply
2.4
2.4
V min
0.8
0.8
V max
±10
±10
μA max
10
10
pF max
Rev. G | Page 3 of 24
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