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AD5934 Datasheet(PDF) 4 Page - Analog Devices

Part No. AD5934
Description  250 kSPS, 12-Bit Impedance Converter, Network Analyzer
Download  32 Pages
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Maker  AD [Analog Devices]
Homepage  http://www.analog.com
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AD5934 Datasheet(HTML) 4 Page - Analog Devices

 
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AD5934
Rev. 0 | Page 4 of 32
Y Version1
Parameter
Min
Typ
Max
Unit
Test Conditions/Comments
RECEIVE STAGE
Input Leakage Current
1
nA
To VIN pin.
Input Capacitance5
0.01
fF
Pin capacitance between VOUT and
GND.
Feedback Capacitance CFB
3
pF
Feedback capacitance around current-
to-voltage amplifier; appears in parallel
with feedback resistor.
ANALOG-TO-DIGITAL CONVERTER5
Resolution
12
bits
Sampling Rate
250
kSPS
ADC throughput rate.
LOGIC INPUTS
Input High Voltage (VIH)
0.7 × VDD
Input Low Voltage (VIL)
0.3 × VDD
Input Current6
1
μA
TA =25°C.
Input Capacitance
7
pF
TA = 25°C.
POWER REQUIREMENTS
VDD
2.7
5.5
V
IDD (Normal Mode )
10
15
mA
VDD = 3.3 V.
17
25
mA
VDD = 5.5 V.
IDD (Standby Mode)
7
mA
VDD = 3.3 V; see the Control Register
section.
9
mA
VDD = 5.5 V.
IDD (Power-Down Mode)
0.7
5
μA
VDD = 3.3 V.
1
8
μA
VDD = 5.5 V.
1 Temperature range for Y version = −40°C to +125°C, typical at 25°C.
2 The lower limit of the output excitation frequency can be lowered by scaling the clock supplied to the AD5934.
3 The peak-to-peak value of the AC output excitation voltage scales with supply voltage according to the formula given below. VDD is the supply voltage.
VDD
Voltage
itation
Output Exc
×
=
3.3
2
p)
-
p
(V
4 The DC bias value of the Output excitation voltage scales with supply voltage according to the formula given below. VDD is the supply voltage.
VDD
Voltage
Bias
n
Excitatio
Output
×
=
3.3
2
(V)
5 Guaranteed by design or characterization, not production tested. Input capacitance at the VOUT pin is equal to pin capacitance divided by open-loop gain of current-
to-voltage amplifier.
6 The accumulation of the currents into Pin 8, Pin 15, and Pin 16.


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