AD7788 データシートの表示（PDF） - Analog Devices
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AD7788 Datasheet PDF : 20 Pages
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AD7788/AD7789
AD7788/AD7789 SPECIFICATIONS
Table 3.
Parameter
LOGIC INPUTS
All Inputs Except SCLK1
VINL, Input Low Voltage
VINH, Input High Voltage
SCLK Only (Schmitt-Triggered Input)1
VT(+)
VT(–)
VT(+) – VT(–)
VT(+)
VT(–)
VT(+) - VT(–)
Input Currents
Input Capacitance
LOGIC OUTPUTS
VOH, Output High Voltage1
VOL, Output Low Voltage1
VOH, Output High Voltage1
VOL, Output Low Voltage1
Floating-State Leakage Current
Floating-State Output Capacitance
Data Output Coding
POWER REQUIREMENTS2
Power Supply Voltage
VDD – GND
Power Supply Currents
IDD Current
IDD (Power-Down Mode)
AD7788A, B/
AD7789B
0.8
0.4
2.0
1.4/2
0.8/1.4
0.3/0.85
0.9/2
0.4/1.1
0.3/0.85
±1
10
VDD – 0.6
0.4
4
0.4
±1
10
Offset Binary
2.5/5.25
2.7/5.25
75
80
1
Unit
V max
V max
V min
V min/V max
V min/V max
V min/V max
V min/V max
V min/V max
V min/V max
µA max
pF typ
V min
V max
V min
V max
µA max
pF typ
V min/max
V min/max
µA max
µA max
µA max
Test Conditions/Comments
VDD = 5 V
VDD = 3 V
VDD = 3 V or 5 V
VDD = 5 V
VDD = 5 V
VDD = 5 V
VDD = 3 V
VDD = 3 V
VDD = 3 V
VIN = VDD
All Digital Inputs
VDD = 3 V, ISOURCE = 100 µA
VDD = 3 V, ISINK = 100 µA
VDD = 5 V, ISOURCE = 200 µA
VDD = 5 V, ISINK = 1.6 mA
AD7789, AD7788B Grade
AD7788A Grade
65 µA typ, VDD = 3.6 V
73 µA typ, VDD = 5.25 V
1 Specification is not production tested but is supported by characterization data at initial product release.
2 Digital inputs equal to VDD or GND.
Rev. 0 | Page 5 of 20
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