AD5934_15 datasheet(5/32 Pages) AD

Nome de Peças	AD5934

Descrição Electrónicos	250 kSPS, 12-Bit Impedance Converter, Network Analyzer

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Fabricante Electrônico	AD [Analog Devices]

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5 / 32 page

Data Sheet

AD5934

Rev. C | Page 5 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

pF

Pin capacitance between VOUT and GND

Feedback Capacitance, C

FB

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, V

IH

0.7 × VDD

Input Low Voltage, V

IL

0.3 × VDD

Input Current6

1

µA

T

A = 25°

Input Capacitance

7

pF

T

A = 25°C

POWER REQUIREMENTS

VDD

2.7

5.5

V

I

DD, Normal Mode

10

15

mA

VDD = 3.3 V

17

25

mA

VDD = 5.5 V

I

DD, Standby Mode

7

mA

VDD = 3.3 V; see the Control Register section

9

mA

VDD = 5.5 V

I

DD, 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 following formula. VDD is the supply voltage.

Output Excitation Voltage (V p-p) = [2/3.3] × VDD

4 The dc bias value of the output excitation voltage scales with supply voltage according to the following formula. VDD is the supply voltage.

Output Excitation Voltage (V p-p) = [2/3.3] × VDD

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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