DAC8830-EP_16 datasheet(5/32 Pages) TI1

部件名	DAC8830-EP

功能描述	16-Bit, Ultra-Low Power, Voltage-Output Digital-to-Analog Converters

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制造商	TI1 [Texas Instruments]

网页	http://www.ti.com

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ELECTRICAL CHARACTERISTICS

DAC8830-EP

DAC8831-EP

SGLS334C – AUGUST 2006 – REVISED APRIL 2007

All specifications at TA = TMIN to TMAX, VDD = 3 V, or VDD = 5 V, VREF = 2.5 V (unless otherwise noted); specifications subject

to change without notice.

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNIT

STATIC PERFORMANCE

Resolution

16

bits

TA = 25°C

±0.5

±1

TA = –40°C to 105°C (DAC8831

±0.5

±1.5

only)

Linearity error

LSB

TA = –55°C to 125°C (DAC8831

±4

only)

TA = –55°C to 125°C (DAC8830

±0.5

±1.5

only)

Differential linearity error

All grades

±0.5

±1

LSB

TA = 25°C

±1

±5

Gain error

LSB

TA = –55°C to 125°C

±7

Gain drift

±0.1

ppm/

°C

TA = 25°C

±0.25

±1

TA = –40°C to 105°C (DAC8831

±2.5

Only)

Zero code error

LSB

TA = –55°C to 125°C (DAC8831

±3

Only)

TA = –55°C to 125°C (DAC8830

±2

Only)

Zero code drift

±0.05

ppm/

°C

OUTPUT CHARACTERISTICS

Unipolar operation

0

VREF

V

Voltage output (1)

(DAC8831 only)

Bipolar operation

–VREF

VREF

V

Output Impedance

6.25

k

Ω

Settling time

To 1/2 LSB of FS, CL = 10 pF

1

μs

Slew rate(2)

CL = 10 pF

25

V/

μs

Digital-to-analog glitch

1 LSB change around major carry

8

nV-s

Digital feedthrough(3)

0.2

nV-s

DAC8830

10

Output noise

TA = 25°C

nV/

√Hz

DAC8831

18

Power supply rejection

VDD varies ±10%

±1

LSB

RFB / RINV

1

Ω/Ω

Bipolar resistor

DAC8831 only

matching

Ratio error

±0.0015%

±0.01%

TA = 25°C

±0.25

±5

Bipolar zero error

DAC8831 only

LSB

TA = –55°C to 125°C

±7

Bipolar zero drift

DAC8831 only

±0.2

ppm/

°C

(1)

TheDAC8830 output is unipolar (0 V to VREF). TheDAC8831 output is bipolar (±VREF) when it connects to an external buffer (see the

Bipolar Output Operation section for details).

(2)

Slew Rate is measure from 10% to 90% of transition when the output changes from 0 to full scale.

(3)

Digital feedthrough is defined as the impulse injected into the analog output from the digital input. It is measured when the DAC output

does not change, CS is held high, while SCLK and DIN signals are toggled.

5

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