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AD7294 Datasheet(PDF) 3 Page - Analog Devices

Part # AD7294
Description  12-Bit, Multichannel, DAC/ADC Temperature Sensor and Current Sense for Monitor and Control Applications
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

AD7294 Datasheet(HTML) 3 Page - Analog Devices

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Preliminary Technical Data
AD7294
Rev. PrB | Page 3 of 45
SPECIFICATIONS
DAC SPECIFICATIONS1
AVDD = DVDD 4.5 V to 5.5 V, AGND = DGND= 0 V, external 2.5 V reference. Temperature range for B version: −40°C to +105°C. All
specifications TMIN to TMAX, unless otherwise noted. Offset pin is open, so range is from 0 to 5V.
Table 1.
Parameter
Min
Typ
Max
Unit
Test Conditions / Comments
ACCURACY
Resolution
12
Bits
Relative Accuracy (INL)
±4
LSB
Differential Nonlinearity (DNL)
±1
LSB
Guaranteed monotonic
Zero-Scale Error
4
mV
Full-Scale Error
TBD
Offset Error
±4
mV
Measured in the linear region
Offset Error TC
±5
µV/°C
Gain Error
±0.024
% FSR
Gain Temperature Coefficient
2
ppm FSR/°C
DC Crosstalk
0.5
LSB
DAC OUTPUT CHARACTERISTICS
Output Voltage Range
0
5
V
With a 2.5 V internal reference
Output Voltage Span
0
15
V
The 5 V o/p voltage range can be
positioned on the span by the offset
Output Voltage Settling Time
TBD
Slew Rate
TBD
Output Noise Spectral Density
TBD
Short-Circuit Current
40
mA
FS current shorted to ground
Load Current
±10
mA
Source/Sink within 200 mV of supply
Capacitive Load Stability
RL = ∞
1000
pF
DC Output Impedance
0.5
Power Supply Sensitivity
∆Vout/∆ΑVDD
–85
dB
OFFSET INPUT
Input Range
0
V
VOUT = 3 VOFFSET − 2VREF + VDAC
5
V
DC Input Impedance
75
kΩ
REFERENCE
Reference Output Voltage
2.49
2.51
V
Reference Input Voltage Range
0.1
2.5
V
DC Leakage Current
±30
µA
Input Capacitance
20
pF
VREF Output Impedance
25
Reference Temperature Coefficient
25
ppm/°C
10 ppm/°C typ
1 Guaranteed by design and characterization; not subject to production testing.


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