ADC122S051CIMMX datasheet(4/19 Pages) NSC

Numer części	ADC122S051CIMMX

Szczegółowy opis	2 Channel, 500 kSPS 12-Bit A/D Converter

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ADC122S051 Converter Electrical Characteristics (Note 9) (Continued)

The following specifications apply for V

A = +2.7V to 5.25V, GND = 0V, fSCLK = 3.2 MHz to 8 MHz, fSAMPLE = 200 kSPS to 500

kSPS, C

L = 35 pF unless otherwise noted. Boldface limits apply for TA =TMIN to TMAX: all other limits TA = 25˚C.

Symbol

Parameter

Conditions

Typical

Limits

(Note 7)

Units

ANALOG INPUT CHARACTERISTICS

V

IN

Input Range

0 to V

A

V

I

DCL

DC Leakage Current

±0.02

±1

µA (max)

C

INA

Input Capacitance

Track Mode

33

pF

Hold Mode

3

pF

DIGITAL INPUT CHARACTERISTICS

V

IH

Input High Voltage

V

A = +5.25V

2.4

V (min)

V

A = +3.6V

2.1

V (min)

V

IL

Input Low Voltage

0.8

V (max)

I

IN

Input Current

V

IN =0VorVIN =VA

±0.02

±10

µA (max)

C

IND

Digital Input Capacitance

2

4

pF (max)

DIGITAL OUTPUT CHARACTERISTICS

V

OH

Output High Voltage

I

SOURCE = 200 µA

V

A − 0.03

V

A − 0.5

V (min)

I

SOURCE =1mA

V

A − 0.10

V

OL

Output Low Voltage

I

SINK = 200 µA

0.02

0.4

V (max)

I

SINK = 1 mA

0.1

V

I

OZH,

I

OZL

TRI-STATE® Leakage Current

0.005

±1

µA (max)

C

OUT

TRI-STATE® Output Capacitance

2

4

pF (max)

Output Coding

Straight (Natural) Binary

POWER SUPPLY CHARACTERISTICS (C

L =10pF)

V

A

Analog Supply Voltage

2.7

V (min)

5.25

V (max)

I

A

Supply Current, Normal Mode

(Operational, CS low)

V

A = +5.25V,

f

SAMPLE = 500 kSPS, fIN =40kHz

1.9

2.4

mA (max)

V

A = +3.6V,

f

SAMPLE = 500 kSPS, fIN =40kHz

0.84

1.2

mA (max)

Supply Current, Shutdown (CS high)

V

A = +5.25V,

f

SAMPLE = 0 kSPS

60

nA

V

A = +3.6V,

f

SAMPLE = 0 kSPS

38

nA

P

D

Power Consumption, Normal Mode

(Operational, CS low)

V

A = +5.25V

10

12.6

mW (max)

V

A = +3.6V

3.0

4.3

mW (max)

Power Consumption, Shutdown (CS

high)

V

A = +5.25V

0.32

µW

V

A = +3.6V

0.14

µW

AC ELECTRICAL CHARACTERISTICS

f

SCLK

Maximum Clock Frequency

(Note 8)

3.2

MHz (min)

8

MHz (max)

f

S

Sample Rate

(Note 8)

200

kSPS (min)

500

kSPS (max)

t

CONV

Conversion Time

13

SCLK cycles

DC

SCLK Duty Cycle

f

SCLK = 8 MHz

50

30

% (min)

70

% (max)

t

ACQ

Track/Hold Acquisition Time

Full-Scale Step Input

3

SCLK cycles

Throughput Time

Acquisition Time + Conversion Time

16

SCLK cycles

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ADC122S051CIMMX Arkusz danych(PDF) 4 Page - National Semiconductor (TI)

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