AD7849 데이터 시트보기 (PDF) - Analog Devices
부품명
상세내역
제조사
AD7849 Datasheet PDF : 20 Pages
| |||
AD7849
Parameter
DIGITAL INPUTS
Input High Voltage, VINH
Input Low Voltage, VINL
Input Current, IINH
Input Capacitance, CIN
DIGITAL OUTPUTS
Output Low Voltage, VOL
Output High Voltage, VOH
Floating State Leakage Current
Floating State Output
Capacitance
POWER REQUIREMENTS2
VDD
VSS
VCC
IDD
ISS
ICC
Power Supply Sensitivity3
Power Dissipation
A Version
2.4
0.8
±10
10
0.4
4.0
±10
10
B Version
2.4
0.8
±10
10
0.4
4.0
±10
10
C Version
2.4
0.8
±10
10
0.4
4.0
±10
10
Unit
V min
V max
μA max
pF max
V max
V min
μA max
pF max
Test Conditions/Comments
ISINK = 1.6 mA
ISOURCE = 400 μA
14.25/15.75
−14.25/−15.75
4.75/5.25
5
5
2.5
0.4
100
14.25/15.75
−14.25/−15.75
4.75/5.25
5
5
2.5
1.5
100
14.25/15.75
−14.25/−15.75
4.75/5.25
5
5
2.5
1.5
100
V min/V max
V min/V max
V min/V max
mA max
mA max
mA max
LSB/V max
mW typ
VOUT unloaded, VINH = VDD – 0.1 V,
VINL = 0.1 V
VOUT unloaded, VINH = VDD – 0.1 V,
VINL = 0.1 V
VINH = VDD – 0.1 V, VINL = 0.1 V
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
VA,1 Low Threshold Voltage for VDD, VSS
VB, High Threshold Voltage for VDD, VSS
VC, Low Threshold Voltage for VCC
VD, High Threshold Voltage for VCC
G2 RON
All Versions
1.2
0
9.5
6.4
1
0
4
2.5
1
Unit
V max
V typ
V max
V min
V max
V typ
V max
V min
kΩ typ
Test Conditions/Comments
This is the lower VDD/VSS threshold voltage for the reset function.
Above this, the reset is activated.
This is the higher VDD/VSS threshold voltage for the reset function.
Below this, the reset is activated. Typically, 8 V.
This is the lower VCC threshold voltage for the reset function.
Above this, the reset is activated.
This is the higher VCC threshold voltage for the reset function.
Below this, the reset is activated. Typically, 3 V.
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.
Rev. C | Page 4 of 20
Share Link: 