ADC10731CIWM datasheet(5/27 Pages) NSC

номер детали	ADC10731CIWM

подробное описание детали	10-Bit Plus Sign Serial I/O A/D Converters with Mux,

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производитель	NSC [National Semiconductor (TI)]

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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)

DYNAMIC SIGNED CONVERTER CHARACTERISTICS

S/(N+D)

Signal-to-Noise Plus Distortion Ratio

V

IN = 4.85 VPP,67

dB

and f

IN = 1 kHz to 15 kHz

ENOB

Effective Number of Bits

V

IN = 4.85 VPP,

10.8

Bits

and f

IN = 1 kHz to 15 kHz

THD

Total Harmonic Distortion

V

IN = 4.85 VPP,

−78

dB

and f

IN = 1 kHz to 15 kHz

IMD

Intermodulation Distortion

V

IN = 4.85 VPP,

−85

dB

and f

IN = 1 kHz to 15 kHz

Full-Power Bandwidth

V

IN = 4.85 VPP, where

380

kHz

S/(N + D) Decreases

3dB

Multiplexer Channel to Channel

Crosstalk

f

IN = 15 kHz

−80

dB

DYNAMIC UNSIGNED CONVERTER CHARACTERISTIC

S/(N+D)

Signal-to-Noise Plus Distortion Ratio

V

REF+ = 4.096V,

V

IN = 4.0 VPP, and

60

dB

f

IN =1 kHz to 15 kHz

Effective Bits

V

REF+ = 4.096V,

V

IN = 4.0 VPP, and

9.8

Bits

f

IN = 1 kHz to 15 kHz

THD

Total Harmonic Distortion

V

REF+ = 4.096V,

V

IN = 4.0 VPP, and

−70

dB

f

IN = 1 kHz to 15 kHz

IMD

Intermodulation Distortion

V

REF+ = 4.096V,

V

IN = 4.0 VPP, and

−73

dB

f

IN = 1 kHz to 15 kHz

Full-Power Bandwidth

V

IN = 4.0 VPP,

V

REF+ = 4.096V,

380

kHz

where S/(N+D) decreases

3dB

Multiplexer Channel to Channel

f

IN = 15 kHz,

−80

dB

Crosstalk

V

REF+ = 4.096V

REFERENCE INPUT AND MULTIPLEXER CHARACTERISTICS

Reference Input Resistance

7

k

Ω

5.0

k

Ω(min)

9.5

k

Ω(max)

C

REF

Reference Input Capacitance

70

pF

MUX Input Voltage

−50

mV(min)

AV

+ +50 mV

(max)

C

IM

MUX Input Capacitance

47

pF

Off Channel Leakage Current

(Note 15)

On Channel = 5V and

−0.4

−3.0

µA(max)

Off Channel = 0V

On Channel = 0V and

0.4

3.0

µA(max)

Off Channel = 5V

On Channel Leakage Current

On Channel = 5V and

0.4

3.0

µA(max)

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