DAC7750IPWPR datasheet(6/53 Pages) TI1

6 / 53 page

DAC7750, DAC8750

SBAS538B – DECEMBER 2013 – REVISED JUNE 2016

www.ti.com

Product Folder Links: DAC7750 DAC8750

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(1)

For more information about traditional and new thermal metrics, see the Semiconductor and IC Package Thermal Metrics application

report.

7.4 Thermal Information

THERMAL METRIC(1)

DAC7750, DAC8750

UNIT

RHA (VQFN)

PWP (HTSSOP)

40 PINS

24 PINS

RθJA

Junction-to-ambient thermal resistance

32.9

32.3

°C/W

RθJC(top)

Junction-to-case (top) thermal resistance

17.2

14.1

°C/W

RθJB

Junction-to-board thermal resistance

7.5

12.2

°C/W

ψJT

Junction-to-top characterization parameter

0.2

0.3

°C/W

ψJB

Junction-to-board characterization parameter

7.5

°C/W

RθJC(bot)

Junction-to-case (bottom) thermal resistance

1.4

0.63

°C/W

(1)

DAC8750 and DAC7750 current output range is set by writing to RANGE bits in control register at address 0x55.

(2)

For 0-mA to 20-mA and 0-mA to 24-mA ranges, INL is calculated beginning from code 0x0100 for DAC8750 and from code 0x0010 for

DAC7750.

7.5 Electrical Characteristics

At AVDD = 10 V to 36 V, GND = 0 V, REFIN = 5 V external, DVDD = 2.7 V to 5.5 V, and all specifications are from –40°C to

125°C (unless otherwise noted). For IOUT, RL = 300 Ω. Typical specifications are at 25°C.

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

CURRENT OUTPUT

Current output

Resolution

DAC8750

Bits

DAC7750

CURRENT OUTPUT ACCURACY (0 mA TO 20 mA AND 0 mA TO 24 mA)(1)

Total unadjusted error, TUE

TA = –40°C to 125°C

–0.2%

0.2%

FSR

TA = –40°C to 85°C

–0.16%

0.16%

TA = 25°C

–0.08%

±0.02%

0.08%

Differential nonlinearity, DNL

Monotonic

±1

LSB

Relative accuracy, INL(2)

TA = –40°C to 125°C

±0.08%

FSR

TA = –40°C to 85°C

±0.024%

Offset error

TA = –40°C to 125°C

–0.17%

0.17%

FSR

TA = –40°C to 85°C

–0.1%

0.1%

TA = 25°C

–0.07%

±0.01%

0.07%

Offset error temperature coefficient

±5

ppm FSR/°C

Full-scale error

TA = –40°C to 125°C

–0.2%

0.2%

FSR

TA = –40°C to 85°C

–0.16%

0.16%

TA = 25°C

–0.08%

±0.015%

0.08%

Full-scale error temperature coefficient

Internal RSET

±5

ppm FSR/°C

External RSET

±10

Gain error

Internal RSET

TA = –40°C to 125°C

–0.2%

0.2%

FSR

TA = –40°C to 85°C

–0.15%

0.15%

TA = 25°C

–0.08%

±0.01%

0.08%

External RSET

TA = –40°C to 125°C

–0.17%

0.17%

TA = –40°C to 85°C

–0.12%

0.12%

TA = 25°C

–0.05%

±0.01%

0.05%

Gain error temperature coefficient

Internal RSET

±3

ppm FSR/°C

External RSET

±8

Output current drift vs time

TA = 125°C, 1000 hrs

Internal RSET

±50

ppm FSR

External RSET

±25

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