ADC12048CIV datasheet(6/30 Pages) NSC

Numer części	ADC12048CIV

Szczegółowy opis	12-Bit Plus Sign 216 kHz 8-Channel Sampling Analog-to-Digital Converter

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Producent	NSC [National Semiconductor (TI)]

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Power Supply Characteristics (Continued)

The following specifications apply to the ADC12048 for V

A+=VD+ = 5V, VREF+ = 4.096V, VREF− = 0.0V, 12-bit + sign conver-

sion mode, f

CLK = 12.0 MHz, RS =25Ω, source impedance for VREF+ and VREF− ≤ 1Ω, fully differential input with fixed 2.048V

common-mode voltage, and minimum acquisition time, unless otherwise specified. Boldface limits apply for T

A =TJ =TMIN

to T

MAX; all other limits TA =TJ = 25˚C

Symbol

Parameter

Conditions

Typical

Limits

Unit

(Note 10)

(Note 11)

(Limit)

I

D+VD+ Digital Supply Current

Start Command (Performing a

conversion) with SYNC configured as

an input and driven with a 214 kHz

signal. Bus width set to 13.

f

CLK = 12.0 MHz, Reset Mode

850

µA

f

CLK = 12.0 MHz, Conversion

2.45

2.8

mA (max)

I

A+VA+ Analog Supply Current

Start Command (Performing a

conversion) with SYNC configured as

an input and driven with a 214 kHz

signal. Bus width set to 13.

f

CLK = 12.0 MHz, Reset Mode

2.3

mA

f

CLK = 12.0 MHz, Conversion

2.3

4.0

mA (max)

I

ST

Standby Supply Current

Standby Mode

(I

D++IA+)

f

CLK = Stopped

5

15

µA (max)

f

CLK = 12.0 MHz

100

120

µA (max)

Analog MUX Inputs Characteristics

The following specifications apply to the ADC12048 for V

A+=VD+ = 5V, VREF+ = 4.096V, VREF− = 0.0V, 12-Bit + sign conver-

sion mode, f

CLK = 12.0 MHz, RS =25Ω, source impedance for VREF+ and VREF+ ≤ 1Ω, fully differential input with fixed 2.048V

common-mode voltage, and minimum acquisition time, unless otherwise specified. Boldface limits apply for T

A =TJ =TMIN

to T

MAX; all other limits TA =TJ = 25˚C

Symbol

Parameter

Conditions

Typical

Limits

Unit

(Note 10)

(Note 11)

(Limit)

I

ON

MUX ON Channel Leakage

Current

ON Channel = 5V, OFF Channel = 0V

0.05

1.0

µA (min)

ON Channel = 0V, OFF Channel = 5V

−0.05

−1.0

µA (max)

I

OFF

MUX OFF Channel Leakage

Current

ON Channel = 5V, OFF Channel = 0V

0.05

1.0

µA (min)

ON Channel = 0V, OFF Channel = 5V

−0.05

−1.0

µA (max)

I

ADCIN

ADCIN Input Leakage Current

0.05

2.0

µA (max)

R

ON

MUX On Resistance

V

IN = 2.5V

310

500

Ω (max)

MUX Channel-to-Channel R

ON

Matching

V

IN = 2.5V

±20%

Ω

C

MUX

MUX Channel and COM Input

Capacitance

10

pF

C

ADC

ADCIN Input Capacitance

70

pF

C

MUXOUT MUX Output Capacitance

20

pF

Reference Inputs

The following specifications apply to the ADC12048 for V

A+=VD+ = 5V, VREF+ = 4.096V, VREF− = 0.0V, 12-bit + sign con-

version mode, f

CLK = 12.0 MHz, RS =25Ω, source impedance for VREF+ and VREF− ≤ 1Ω, fully differential input with fixed

2.048V common-mode voltage, and minimum acquisition time, unless otherwise specified. Boldface limits apply for T

A =TJ

=T

MIN to TMAX; all other limits TA =TJ = 25˚C

Symbol

Parameter

Conditions

Typical

Limits

Unit

(Note 10)

(Note 11)

(Limit)

I

REF

Reference Input Current

V

REF+ 4.096V, VREF− =0V

Analog Input Signal: 1 kHz

145

µA

(Note 20)

80 kHz

136

µA

C

REF

Reference Input

Capacitance

85

pF

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Podobny numer części - ADC12048CIV

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