DAC7568IAPWR.A datasheet(6/72 Pages) TI2

6 / 72 page

DAC7568, DAC8168, DAC8568

SBAS430F – JANUARY 2009 – REVISED APRIL 2018

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Product Folder Links: DAC7568 DAC8168 DAC8568

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Electrical Characteristics (continued)

At AVDD = 2.7V to 5.5V and over –40°C to +125°C (unless otherwise noted).

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

(2)

Specified by design or characterization; not production tested.

(3)

Reference is trimmed and tested at room temperature, and is characterized from –40°C to +125°C.

(4)

Reference is trimmed and tested at two temperatures (+25°C and +105°C), and is characterized from –40°C to +125°C.

(5)

Explained in more detail in the Application Information section of this data sheet.

OUTPUT CHARACTERISTICS(2)

Output voltage range

AVDD ≥ 2.7V; grades A and B: maximum output voltage

2.5V when using internal reference

AVDD

AVDD ≥ 5V; grades C and D: maximum output voltage

5V when using internal reference

Output voltage settling time

DACs unloaded; 1/4 scale to 3/4 scale to ±0.024%

μs

RL = 1MΩ

Slew rate

0.75

V/μs

Capacitive load stability

RL = ∞

1000

RL = 2kΩ

3000

Code change glitch impulse

1LSB change around major carry

0.1

nV-s

Digital feedthrough

SCLK toggling, SYNC high

0.1

nV-s

Power-on glitch impulse

RL = 2kΩ, CL = 470pF, AVDD = 5.5V

RL = 2kΩ, CL = 470pF, AVDD = 2.7V

Channel-to-channel dc crosstalk

Full-scale swing on adjacent channel

0.1

LSB

Channel-to-channel ac crosstalk

RL = 2kΩ, CL = 420pF, 1kHz full-scale sine wave,

outputs unloaded

–109

DC output impedance

At mid-code input

Ω

Short-circuit current

DAC outputs at full-scale, DAC outputs shorted to GND

Power-up time, including settling time

Coming out of power-down mode

μs

AC PERFORMANCE(2)

SNR

TA = +25°C, BW = 20kHz, AVDD = 5V, fOUT = 1kHz,

first 19 harmonics removed for SNR calculation,

at 16-bit level

THD

–63

SFDR

SINAD

DAC output noise density

TA = +25°C, at zero-code input, fOUT = 1kHz

nV/

√Hz

DAC output noise

TA = +25°C, at mid-code input, 0.1Hz to 10Hz

2.6

μVPP

REFERENCE

Internal reference current consumption

AVDD = 5.5V

360

μA

AVDD = 3.6V

348

μA

External reference current

External VREF = 2.5V (when

internal reference is disabled),

all eight channels active

Grades A/B

μA

Grades C/D

115

VREFIN

Reference input range

Grades A/B, AVDD = 2.7V to 5.5V

AVDD

Grades C/D, AVDD = 5.0V to 5.5V

AVDD/2

Reference input impedance

Grades A/B

Ω

Grades C/D

REFERENCE OUTPUT

Output voltage

TA = +25°C; all grades

2.4975

2.5

2.5025

Initial accuracy

TA = +25°C, all grades

–0.1

±0.004

0.1

Output voltage temperature drift

DAC7568/DAC8168/DAC8568(3),grades A/B

ppm/°C

DAC7568/DAC8168/DAC8568(4), grades C/D

Output voltage noise

f = 0.1Hz to 10Hz

μVPP

Output voltage noise density

(high-frequency noise)

TA = +25°C, f = 1MHz, CL = 0μF

nV/

√Hz

TA = +25°C, f = 1MHz, CL = 1μF

TA = +25°C, f = 1MHz, CL = 4μF

Load regulation, sourcing(5)

TA = +25°C

μV/mA

Load regulation, sinking(5)

TA = +25°C

μV/mA

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