TLV2544CPWR datasheet(23/49 Pages) TI1

23 / 49 page

TLV2544, TLV2548

2.7V TO 5.5V, 12BIT, 200KSPS, 4/8CHANNEL, LOW POWER

SERIAL ANALOGTODIGITAL CONVERTERS WITH AUTOPOWERDOWN

SLAS198E − FEBRUARY 1999 − REVISED JUNE 2003

POST OFFICE BOX 655303

• DALLAS, TEXAS 75265

electrical characteristics over recommended operating free-air temperature range, VCC = VREFP = 2.7 V to

5.5 V, VREFM = 0 V, SCLK frequency = 20 MHz at 5 V, 15 MHz at 3 V (unless otherwise noted) (continued)

ac specifications

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

SINAD

Signal-to-noise ratio +distortion

fI = 12 kHz at 200 KSPS

C and I suffix

THD

Total harmonic distortion

fI = 12 kHz at 200 KSPS

−82

−76

ENOB

Effective number of bits

fI = 12 kHz at 200 KSPS

11.6

Bits

SFDR

Spurious free dynamic range

fI = 12 kHz at 200 KSPS

−84

−75

Analog input

Full power-bandwidth, −3 dB

MHz

Full-power bandwidth, −1 dB

500

kHz

reference specifications† (0.1

µF and 10 µF between REFP and REFM pins)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Positive reference input voltage, REFP

VCC = 2.7 V to 5.5 V

VCC

Negative reference input voltage, REFM

VCC = 2.7 V to 5.5 V

VCC = 5.5 V

CS = 1,

SCLK = 0, (off)

100

Ω

Reference Input impedance

VCC = 5.5 V

CS = 0,

SCLK = 20 MHz (on)

Ω

Reference Input impedance

VCC = 2.7 V

CS = 1,

SCLK = 0 (off)

100

Ω

VCC = 2.7 V

CS = 0,

SCLK = 15 MHz (on)

Ω

Reference Input voltage difference, REFP−REFM

VCC = 2.7 V to 5.5 V

VCC

VCC = 5.5 V

VREF SELECT = 4 V

3.85

4.15

Internal reference voltage, REFP−REFM

VCC = 5.5 V

VREF SELECT = 2 V

1.925

2.075

Internal reference voltage, REFP−REFM

VCC = 2.7 V

VREF SELECT = 2 V

1.925

2.075

Internal reference start-up time

VCC = 5.5 V, 2.7 V with 10 µF compensation cap

Internal reference temperature coefficient

VCC = 2.7 V to 5.5 V

40†

PPM/

°C

† Specified by design

TLV2544CPWR Datasheet(PDF) 23 Page - Texas Instruments

TLV2544CPWR Datasheet(HTML) 23 Page - Texas Instruments

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