AMC7891

SBAS518A

– AUGUST 2011 – REVISED DECEMBER 2011

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ELECTRICAL CHARACTERISTICS (DAC SPECIFICATIONS)

AVDD = 4.75 to 5.5 V, GPIOVDD = 1.8 to 5.5 V, SPIVDD = 1.8 to 5.5 V, AGND = DGND = 0 V, External ADC reference = AVDD,

TA = –40°C to 105°C (unless otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

STATIC ACCURACY

Resolution

10

Bits

INL

Relative accuracy

±0.05

±1

LSB

DNL

Differential nonlinearity

Specified monotonic

±0.1

±1

LSB

Offset error

Code 0x008

±0.5

±5

mV

Gain error

±0.025

±0.2

%FSR

Offset temperature coefficient

±1

ppm/

°C

Gain temperature coefficient

±1

ppm/

°C

DAC OUTPUT (1)

Full scale output voltage range

0

AVDD

V

Transition: Code 0x008 to 0x3F8 to within 1/2 LSB,

Output voltage settling time

5

µs

CL = 2 nF, RL = ∞

Slew rate

2

V/

µs

Short circuit current

Full-scale current shorted to ground or pulled to AVDD

±30

mA

Load current

Source and/or sink within 300 mV of supply

±10

mA

Capacitive load stability

RL = ∞

10

nF

DC output impedance

1

Ω

Power-on overshoot

AVDD 0 to 5 V, 2 ms ramp

10

mV

Glitch energy

Transition: Code 0x1FF to 0x200; 0x200 to 0x1FF

0.15

nV-s

TA = 25°C, 1 kHz

260

nV/

√Hz

Output noise

Integrated noise from 0.1 Hz to 10 Hz

20

µVPP

(1)

Specified by design and characterization. Not tested during production.

6

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© 2011, Texas Instruments Incorporated

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