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AD7781BRZ-REEL Arkusz danych(PDF) 4 Page - Analog Devices

Numer części AD7781BRZ-REEL
Szczegółowy opis  20-Bit, Pin-Programmable, Low Power Sigma-Delta ADC
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Producent  AD [Analog Devices]
Strona internetowa  http://www.analog.com
Logo AD - Analog Devices

AD7781BRZ-REEL Arkusz danych(HTML) 4 Page - Analog Devices

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AD7781
Rev. 0 | Page 4 of 16
Parameter
Min
Typ
Max
Unit
Test Conditions/Comments
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
DVDD = 3 V
0.8
V
DVDD = 5 V
Input High Voltage, VINH
1.8
V
DVDD = 3 V
2.4
V
DVDD = 5 V
SCLK (Schmitt-Triggered Input)
Hysteresis2
100
mV
DVDD = 3 V
140
mV
DVDD = 5 V
Input Currents
±2
μA
VIN = DVDD or GND
Input Capacitance
10
pF
All digital inputs
LOGIC OUTPUT (DOUT/RDY)
Output High Voltage, VOH2
DVDD − 0.6
V
DVDD = 3 V, ISOURCE = 100 μA
4
V
DVDD = 5 V, ISOURCE = 200 μA
Output Low Voltage, VOL2
0.4
V
DVDD = 3 V, ISINK = 100 μA
0.4
V
DVDD = 5 V, ISINK = 1.6 mA
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
AVDD = 3 V
130
160
μA
AVDD = 5 V
Gain = 128 (B Grade)
300
μA
AVDD = 3 V
350
400
μA
AVDD = 5 V
Gain = 128 (C Grade)
330
μA
AVDD = 3 V
420
500
μA
AVDD = 5 V
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.


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