DAC1280IPWR datasheet(4/24 Pages) TI1

부품명	DAC1280IPWR

상세설명	Low Distortion Digital-to-Analog Converter for Seismic Monitoring

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4 / 24 page

I

, |

= 0.94

AVDD

(1 + 22

Gain)

I

|

AVSS

·

V

R

REF

DAC1280

SBAS432A – APRIL 2010 – REVISED SEPTEMBER 2010

www.ti.com

ELECTRICAL CHARACTERISTICS (continued)

Minimum/maximum specifications at –40°C to +85°C, typical specifications at +25°C, AVDD = +2.5V, AVSS = –2.5V, DVDD =

3.3V, CLK = 4.096MHz, VREF = 5V, and RREF = 30kΩ, unless otherwise noted. Refer to circuit configuration shown in

Figure 35.

DAC1280

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

REFERENCE RESISTOR (RREF)

Reference resistor

28

30

60

k

Ω

DIGITAL INPUTS (DVDD = 1.65V to 3.6V)

VIH

0.8 × DVDD

DVDD

V

VIL

DGND

0.2 × DVDD

V

Input hysteresis

0.5

V

Input leakage

0 < VIN < DVDD

–10

10

mA

CLOCK INPUT (fCLK)

Frequency

1

4.096

MHz

TDATA INPUT

Frequency

fCLK/16

MHz

1s density modulation

25

75

%

POWER SUPPLY

AVSS

–2.6

0

V

AVDD

AVSS + 4.75

AVSS + 5.25

V

DVDD

1.65

3.6

V

Gain = 1/1

3.6

3.7

| mA |

AVDD, AVSS current(8)

Power-down

1

10

| mA |

Operating

60

150

mA

DVDD current

Power-down(9)

1

10

mA

Gain = 1/1

18

mW

Power dissipation

Power-down

8

mW

TEMPERATURE RANGE

Specified temperature range

–40

+85

°C

Operating temperature range

–40

+125

°C

Storage temperature range

–40

+150

°C

(8)

Typical analog supply current depends on gain, VREF, and RREF:

(9)

CLK and TDATA stopped. Digital inputs maintained at VIH or VIL levels.

4

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