ADC10732CIWM datasheet(6/27 Pages) NSC

No de pièce	ADC10732CIWM

Description	10-Bit Plus Sign Serial I/O A/D Converters with Mux,

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Fabricant	NSC [National Semiconductor (TI)]

Site Internet	http://www.national.com

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Electrical Characteristics (Continued)

The following specifications apply for V

+ = AV+ = DV+ = +5.0 V

DC,VREF+ = 2.5 VDC,VREF− = GND, VIN− = 2.5V for Signed

Characteristics, V

IN− = GND for Unsigned Characteristics and fCLK = 2.5 MHz unless otherwise specified. Boldface limits ap-

ply for T

A = TJ = TMIN to TMAX; all other limits TA = TJ = +25˚C. (Notes 8, 9, 10)

Symbol

Parameter

Conditions

Typical

Limits

Units

(Note 11)

(Note 12)

(Limits)

REFERENCE INPUT AND MULTIPLEXER CHARACTERISTICS

(Note 15)

Off Channel = 0V

On Channel = 0V and

−0.4

−3.0

µA(max)

Off Channel = 5V

REFERENCE CHARACTERISTICS

V

REFOut

Reference Output Voltage

2.5V ±0.5%

2.5V ±2%

V(max)

∆V

REF/∆TVREFOut Temperature Coefficient

±40

ppm/˚C

∆V

REF/∆IL

Load Regulation, Sourcing

0 mA

≤ I

L ≤ +4 mA

±0.003

±0.05

%/mA(max)

∆V

REF/∆IL

Load Regulation, Sinking

0 mA

≤ I

L ≤ −1 mA

±0.2

±0.6

%/mA(max)

Line Regulation

5V ±10%

±0.3

±2.5

mV(max)

I

SC

Short Circuit Current

V

REFOut = 0V

13

22

mA(max)

Noise Voltage

10 Hz to 10 kHz,

C

L = 100 µF

5µV

∆V

REF/∆t

Long-term Stability

±120

ppm/kHr

t

SU

Start-Up Time

C

L = 100 µF

100

ms

DIGITAL AND DC CHARACTERISTICS

V

IN(1)

Logical “1” Input Voltage

V

+ = 5.5V

2.0

V(min)

V

IN(0)

Logical “0” Input Voltage

V

+ = 4.5V

0.8

V(max)

I

IN(1)

Logical “1” Input Current

V

IN = 5.0V

0.005

+2.5

µA(max)

I

IN(0)

Logical “0” Input Current

V

IN = 0V

−0.005

−2.5

µA(max)

V

OUT(1)

Logical “1” Output Voltage

V

+ = 4.5V, I

OUT = −360 µA

2.4

V(min)

V

+ = 4.5V, I

OUT = −10 µA

4.5

V(min)

V

OUT(0)

Logical “0” Output Voltage

V

+ = 4.5V, I

OUT = 1.6 mA

0.4

V(min)

I

OUT

TRI-STATE Output Current

V

OUT = 0V

−0.1

−3.0

µA(max)

V

OUT = 5V

+0.1

+3.0

µA(max)

+I

SC

Output Short Circuit Source Current

V

OUT = 0V, V

+ = 4.5V

−30

−15

mA(min)

−I

SC

Output Short Circuit Sink Current

V

OUT= V

+ = 4.5V

30

15

mA(min)

I

D+

Digital Supply Current

CS = HIGH, Power Up

0.9

1.3

mA(max)

(Note 17)

CS = HIGH, Power Down

0.2

0.4

mA(max)

CS = HIGH, Power Down,

and CLK Off

0.5

50

µA(max)

I

A+

Analog Supply Current

CS = HIGH, Power Up

2.7

6.0

mA(max)

(Note 17)

CS = HIGH, Power Down

3

15

µA(max)

I

REF

Reference Input Current

V

REF+ = +2.5V and

0.6

mA(max)

CS = HIGH, Power Up

AC CHARACTERISTICS

f

CLK

Clock Frequency

3.0

2.5

MHz(max)

5

kHz(min)

Clock Duty Cycle

40

%(min)

60

%(max)

t

C

Conversion Time

12

Clock

Cycles

5

µs(max)

t

A

Acquisition Time

4.5

Clock

Cycles

2

µs(max)

www.national.com

6

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