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AD7849 Datasheet(PDF) 4 Page - Analog Devices

No. de pieza AD7849
Descripción Electrónicos  Serial Input, 14-Bit/16-Bit DAC
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Fabricante Electrónico  AD [Analog Devices]
Página de inicio  http://www.analog.com
Logo AD - Analog Devices

AD7849 Datasheet(HTML) 4 Page - Analog Devices

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AD7849
Rev. C | Page 4 of 20
Parameter
A Version
B Version
C Version
Unit
Test Conditions/Comments
DIGITAL INPUTS
Input High Voltage, VINH
2.4
2.4
2.4
V min
Input Low Voltage, VINL
0.8
0.8
0.8
V max
Input Current, IINH
±10
±10
±10
μA max
Input Capacitance, CIN
10
10
10
pF max
DIGITAL OUTPUTS
Output Low Voltage, VOL
0.4
0.4
0.4
V max
ISINK = 1.6 mA
Output High Voltage, VOH
4.0
4.0
4.0
V min
ISOURCE = 400 μA
Floating State Leakage Current
±10
±10
±10
μA max
Floating State Output
Capacitance
10
10
10
pF max
POWER REQUIREMENTS2
VDD
14.25/15.75
14.25/15.75
14.25/15.75
V min/V max
VSS
−14.25/−15.75
−14.25/−15.75
−14.25/−15.75
V min/V max
VCC
4.75/5.25
4.75/5.25
4.75/5.25
V min/V max
IDD
5
5
5
mA max
VOUT unloaded, VINH = VDD – 0.1 V,
VINL = 0.1 V
ISS
5
5
5
mA max
VOUT unloaded, VINH = VDD – 0.1 V,
VINL = 0.1 V
ICC
2.5
2.5
2.5
mA max
VINH = VDD – 0.1 V, VINL = 0.1 V
Power Supply Sensitivity3
0.4
1.5
1.5
LSB/V max
Power Dissipation
100
100
100
mW typ
VOUT unloaded
1 Guaranteed by design and characterization, not production tested.
2 The AD7849 is functional with power supplies of ±12 V. See the Typical Performance Characteristics section.
3 Sensitivity of gain error, offset error, and bipolar zero error to VDD, VSS variations.
RESET SPECIFICATIONS
These specifications apply when the device goes into reset mode during power-up or power-down sequence. VOUT unloaded.
Table 2.
Parameter
All Versions
Unit
Test Conditions/Comments
VA,1 Low Threshold Voltage for VDD, VSS
1.2
V max
This is the lower VDD/VSS threshold voltage for the reset function.
0
V typ
Above this, the reset is activated.
VB, High Threshold Voltage for VDD, VSS
9.5
V max
This is the higher VDD/VSS threshold voltage for the reset function.
6.4
V min
Below this, the reset is activated. Typically, 8 V.
VC, Low Threshold Voltage for VCC
1
V max
This is the lower VCC threshold voltage for the reset function.
0
V typ
Above this, the reset is activated.
VD, High Threshold Voltage for VCC
4
V max
This is the higher VCC threshold voltage for the reset function.
2.5
V min
Below this, the reset is activated. Typically, 3 V.
G2 RON
1
kΩ typ
On resistance of G2; VDD = 2 V; VSS = −2 V; IG2 = 1 mA.
1 A pull-down resistor (65 kΩ) on VOUT maintains 0 V output when VDD/VSS is below VA.


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