AD7920BRM datasheet(5/24 Pages) AD

부품명	AD7920BRM

상세설명	250 kSPS, 10-/12-Bit ADCs in 6-Lead SC70

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AD7910/AD7920

Rev. C | Page 5 of 24

Parameter1

A Grade ,

1 2

B Grade1, 2

Unit

Test Conditions/Comments

LOGIC INPUTS

Input High Voltage, VINH

2.4

V min

1.8

V min

VDD = 2.35 V

Input Low Voltage, VINL

0.8

V max

VDD = 3.6 V to 5.25 V

0.4

V max

VDD = 2.35 V to 3.6 V

Input Current, IIN, SCLK Pin

±0.5

μA max

Typically 10 nA, VIN = 0 V or VDD

Input Current, IIN, CS Pin

±10

nA typ

Input Capacitance, CIN6

5

pF max

LOGIC OUTPUTS

Output High Voltage, VOH

VDD − 0.2

V min

ISOURCE = 200 μA, VDD = 2.35 V to 5.25 V

Output Low Voltage, VOL

0.4

V max

ISINK = 200 μA

Floating-State Leakage Current

±1

μA max

Floating-State Output Capacitance6

5

pF max

Output Coding

Straight (natural) binary

CONVERSION RATE

Conversion Time

3.2

μs max

16 SCLK cycles with SCLK at 5 MHz

Track-and-Hold Acquisition Time3

250

ns max

Throughput Rate

250

kSPS max

See the Serial Interface section

POWER REQUIREMENTS

VDD

2.35/5.25

V min/max

IDD

Digital I/Ps = 0 V or VDD

Normal Mode (Static)

2.5

mA typ

VDD = 4.75 V to 5.25 V, SCLK on or off

1.2

mA typ

VDD = 2.35 V to 3.6 V, SCLK on or off

Normal Mode (Operational)

3

mA max

VDD = 4.75 V to 5.25 V, fSAMPLE = 250 kSPS

1.4

mA max

VDD = 2.35 V to 3.6 V, fSAMPLE = 250 kSPS

Full Power-Down Mode

1

μA max

Typically 50 nA

Power Dissipation7

Normal Mode (Operational)

15

mW max

VDD = 5 V, fSAMPLE = 250 kSPS

4.2

mW max

VDD = 3 V, fSAMPLE = 250 kSPS

Full Power-Down

5

μW max

VDD = 5 V

3

μW max

VDD = 3 V

1 Temperature range from −40°C to +85°C.

2 Operational from VDD = 2.0 V, with input low voltage (VINL) 0.35 V max.

3 See the Terminology section.

4 B Grade, maximum specifications apply as typical figures when VDD = 4.75 V to 5.25 V.

5 SC70 values guaranteed by characterization.

6 Guaranteed by characterization.

7 See the Power vs. Throughput Rate section.

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AD7920BRM 데이터시트(PDF) 5 Page - Analog Devices

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