EVAL-AD7794EB View Datasheet(PDF) - Analog Devices
Part Name
Description
Manufacturer
EVAL-AD7794EB
Analog Devices
EVAL-AD7794EB Datasheet PDF : 36 Pages
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AD7794/AD7795
Parameter1
BIAS VOLTAGE GENERATOR
VBIAS
VBIAS Generator Start-Up Time
TEMPERATURE SENSOR
Accuracy
Sensitivity
LOW-SIDE POWER SWITCH
RON
Allowable Current2
DIGITAL OUTPUTS (P1 and P2)
VOH, Output High Voltage2
VOL, Output Low Voltage2
VOH, Output High Voltage2
VOL, Output Low Voltage2
INTERNAL/EXTERNAL CLOCK
Internal Clock
Frequency2
Duty Cycle
External Clock
Frequency
Duty Cycle
LOGIC INPUTS
CS2
VINL, Input Low Voltage
VINH, Input High Voltage
SCLK (Schmitt-Triggered Input),
CLK, and DIN2
AD7794B/AD7795B
VT(+)
VT(−)
VT(+) to VT(−)
VT(+)
VT(−)
VT(+) to VT(−)
AD7794C
VT(+)
VT(−)
VT(+) to VT(−)
VT(+)
VT(−)
VT(+) to VT(−)
Input Currents
Input Capacitance
AD7794/AD7795
AVDD/2
±2
0.81
7
9
30
AVDD − 0.6
0.4
4
0.4
64 ± 3%
50:50
64
45:55 to 55:45
0.8
0.4
2.0
1.4/2
0.8/1.7
0.1/0.17
0.9/2
0.4/1.35
0.06/0.13
1.35/2.05
0.8/1.9
0.1/0.19
0.9/2
0.4/1.35
0.06/0.15
±10
10
Unit
Test Conditions/Comments
V nom
ms/nF typ
Dependent on the capacitance connected to AIN;
See Figure 11
°C typ
mV/°C typ
Applies if user calibrates the temperature sensor
Ω max
Ω max
mA max
AVDD = 5 V
AVDD = 3 V
Continuous current
V min
V max
V min
V max
AVDD = 3 V, ISOURCE = 100 μA
AVDD = 3 V, ISINK = 100 μA
AVDD = 5 V, ISOURCE = 200 μA
AVDD = 5 V, ISINK = 800 μA
kHz
min/max
% typ
kHz nom
% typ
A 128 kHz external clock can be used if the divide-by-2
function is used (Bit CLK1 = CLK0 = 1)
Applies for external 64 kHz clock, a 128 kHz clock can
have a less stringent duty cycle
V max
V max
V min
DVDD = 5 V
DVDD = 3 V
DVDD = 3 V or 5 V
V min/max
V min/max
V min/max
V min/max
V min/max
V min/max
DVDD = 5 V
DVDD = 5 V
DVDD = 5 V
DVDD = 3 V
DVDD = 3 V
DVDD = 3 V
V min/max
V min/max
V min/max
V min/max
V min/max
V min/max
μA max
pF typ
DVDD = 5 V
DVDD = 5 V
DVDD = 5 V
DVDD = 3 V
DVDD = 3 V
DVDD = 3 V
VIN = DVDD or GND
All digital inputs
Rev. D | Page 6 of 36
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