TLV2548MFKB datasheet(23/41 Pages) TI

23 / 41 page

TLV2544Q, TLV2548Q, TLV2548M

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

SERIAL ANALOG-TO-DIGITAL CONVERTERS WITH AUTOPOWER-DOWN

SGLS119C – FEBRUARY 2002 – REVISED OCTOBER 2002

POST OFFICE BOX 655303

• DALLAS, TEXAS 75265

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

3 V to 5.5 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

THD

Total harmonic distortion

fI = 12 kHz at 200 KSPS

TA = –55°C

–82

–73

THD

Total harmonic distortion

fI = 12 kHz at 200 KSPS

All other temperatures

–82

–75

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 = 3 V to 5.5 V

VCC

Negative reference input voltage, REFM

VCC = 3 V to 5.5 V

VCC =5 5V

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 =3V

CS = 1,

SCLK = 0 (off)

100

Ω

VCC = 3 V

CS = 0,

SCLK = 20 MHz (on)

Ω

Reference Input voltage difference, REFP – REFM

VCC = 3 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

VCC = 3 V

VREF SELECT = 2 V

1.925

2.075

Internal reference start-up time

VCC = 5.5 V, 3 V with 10 µF compensation cap

Internal reference temperature coefficient

VCC = 3 V to 5.5 V

40†

PPM/

°C

† Not assured

TLV2548MFKB Datasheet(PDF) 23 Page - Texas Instruments

TLV2548MFKB Datasheet(HTML) 23 Page - Texas Instruments

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41

Datasheet Download

Link URL