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AD7709ARU bảng dữ liệu(PDF) 5 Page - Analog Devices

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AD7709ARU bảng dữ liệu(HTML) 5 Page - Analog Devices

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REV. A
–4–
AD7709
Parameter
AD7709A, AD7709B
Unit
Test Conditions
EXCITATION CURRENT SOURCES
(IEXC1, IEXC2, and IEXC3)
Output Current
IEXC1, IEXC2
200
mA nom
IEXC3
25
mA nom
Initial Tolerance at 25
∞C
±10
% typ
Drift
200
ppm/
∞C typ
Initial Current Matching at 25
∞C
±2.5
% max
B Grade, No Load
(between IEXC1 and IEXC2)
±2.5
% typ
A Grade, No Load
Drift Matching
(between IEXC1 and IEXC2)
20
ppm/
∞C typ
Initial Current Matching at 25
∞C
±5% max
B Grade, No Load
(between 8
IEXC3 and
IEXC1/IEXC2)
±5% typ
A Grade, No Load
Drift Matching
(between 8
IEXC3 and
IEXC1/IEXC2)
20
ppm/
∞C typ
Line Regulation
VDD = 5 V
± 5%
IEXC1, IEXC2
1.25
mA/V typ
A, B Grades
2.6
mA/V max
B Grade
IEXC3
1
mA/V max
B Grade
1
mA/V typ
A Grade
Load Regulation
300
nA/V typ
Output Compliance
VDD – 0.6
V max
GND –30 mV
V min
LOW-SIDE POWER SWITCHES
(SW1 and SW2)
RON
3
W typ
VDD = 5 V, A and B Grade
5
W max
B Grade
4.5
W typ
VDD = 3 V, A and B Grade
7
Wmax
B Grade
Allowable Current
2
20
mA max
Continuous Current per Switch
LOGIC INPUTS
All Inputs Except SCLK and XTAL1
2
VINL, Input Low Voltage
0.8
V max
VDD = 5 V
0.4
V max
VDD = 3 V
VINH, Input High Voltage
2.0
V min
VDD = 3 V or 5 V
SCLK Only (Schmitt-Triggered Input)
2
VT(+)
1.4/2
V min/V max
VDD = 5 V
VT(–)
0.8/1.4
V min/V max
VDD = 5 V
VT(+) – VT(–)
0.3/0.85
V min/V max
VDD = 5 V
VT(+)
0.95/2
V min/V max
VDD = 3 V
VT(–)
0.4/1.1
V min/V max
VDD = 3 V
VT(+) – VT(–)
0.3/0.85
V min/V max
VDD = 3 V
XTAL1 Only
2
VINL, Input Low Voltage
0.8
V max
VDD = 5 V
VINH, Input High Voltage
3.5
V min
VDD = 5 V
VINL, Input Low Voltage
0.4
V max
VDD = 3 V
VINH, Input High Voltage
2.5
V min
VDD = 3 V
Input Currents (except XTAL)
±2
mA max
VIN = VDD
–70
mA max
VIN = GND, Typically –40
mA @ 5 V and
–20
mA at 3 V; Weak Pull-Ups on the
Logic Inputs
Input Capacitance
10
pF typ
All Digital Inputs
(continued)
SPECIFICATIONS


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