TLV5638

2.7 V TO 5.5 V LOW POWER DUAL 12-BIT DIGITAL-TO-ANALOG

CONVERTER WITH INTERNAL REFERENCE AND POWER DOWN

SLAS225A – JUNE 1999 – REVISED JANUARY 2000

5

POST OFFICE BOX 655303

(unless otherwise noted) (continued)

output specifications

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

VO

Output voltage

RL = 10 kΩ

0

VDD–0.4

V

Output load regulation accuracy

VO = 4.096 V, 2.048 V,

RL = 2 kΩ

±0.25

% full

scale V

reference pin configured as output (REF)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Vref(OUTL)

Low reference voltage

1.003

1.024

1.045

V

Vref(OUTH)

High reference voltage

VDD > 4.75 V

2.027

2.048

2.069

V

Iref(source)

Output source current

1

mA

Iref(sink)

Output sink current

–1

mA

Load capacitance

100

pF

PSRR

Power supply rejection ratio

–65

dB

reference pin configured as input (REF)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

VI

Input voltage

0

VDD–1.5

V

RI

Input resistance

10

M

Ω

CI

Input capacitance

5

pF

Reference input bandwidth

REF=0 2V

+1 024Vdc

Fast

1.3

MHz

Reference input bandwidth

REF = 0.2 Vpp + 1.024 V dc

Slow

525

kHz

Reference feedthrough

REF = 1 Vpp at 1 kHz + 1.024 V dc (see Note 10)

–80

dB

NOTE 10: Reference feedthrough is measured at the DAC output with an input code = 0x000.