AD7781CRZ-REEL Ver la hoja de datos (PDF) - Analog Devices
Número de pieza
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AD7781CRZ-REEL Datasheet PDF : 16 Pages
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AD7781
Parameter
Min
Typ
Max
Unit
INTERNAL CLOCK
Frequency
64 − 3%
64 + 3%
kHz
Duty Cycle
50:50
%
LOGIC INPUTS
SCLK, FILTER, GAIN, PDRST2
Input Low Voltage, VINL
0.4
V
0.8
V
Input High Voltage, VINH
1.8
V
2.4
V
SCLK (Schmitt-Triggered Input)
Hysteresis2
100
mV
140
mV
Input Currents
±2
μA
Input Capacitance
10
pF
LOGIC OUTPUT (DOUT/RDY)
Output High Voltage, VOH2
DVDD − 0.6
V
4
V
Output Low Voltage, VOL2
0.4
V
0.4
V
Floating-State Leakage Current
±2
μA
Floating-State Output Capacitance
10
pF
Data Output Coding
Offset binary
POWER REQUIREMENTS3
Power Supply Voltage
AVDD to GND
2.7
5.25
V
DVDD to GND
2.7
5.25
V
Power Supply Currents
IDD Current
Gain = 1
115
μA
130
160
μA
Gain = 128 (B Grade)
300
μA
350
400
μA
Gain = 128 (C Grade)
330
μA
420
500
μA
IDD (Power-Down/Reset Mode)
10
μA
1 Temperature range is −40°C to +105°C.
2 This specification is not production tested but is supported by characterization data at initial product release.
3 Digital inputs are equal to DVDD or GND.
Test Conditions/Comments
DVDD = 3 V
DVDD = 5 V
DVDD = 3 V
DVDD = 5 V
DVDD = 3 V
DVDD = 5 V
VIN = DVDD or GND
All digital inputs
DVDD = 3 V, ISOURCE = 100 μA
DVDD = 5 V, ISOURCE = 200 μA
DVDD = 3 V, ISINK = 100 μA
DVDD = 5 V, ISINK = 1.6 mA
AVDD = 3 V
AVDD = 5 V
AVDD = 3 V
AVDD = 5 V
AVDD = 3 V
AVDD = 5 V
Rev. 0 | Page 4 of 16
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