TLC4541, TLC4545

SLAS293 − DECEMBER 2001

5

www.ti.com

electrical characteristics over recommended operating free-air temperature range,

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

VOH

High-level output voltage

VDD = 4.5 V,

IOH = −0.2 mA

3.9

V

VOL

Low-level output voltage

VDD = 4.5 V,

IOL = 0.8 mA

0.4

V

IOZ

Off-state output current

VO = VDD,

CS = VDD

1

2.5

A

IOZ

Off-state output current

(high-impedance-state)

VO = 0,

CS = VDD

−1

−2.5

µA

IIH

High-level input current

VI = VDD

0.005

2.5

µA

IIL

Low-level input current

VI = 0

−0.005

2.5

µA

ICC

Operating supply current

CS at 0 V,

VDD = 4.5 V to 5.5 V

3.5

mA

ICC(PD) Power-down supply current

For all digital inputs, 0

≤ VI ≤ 0.3 V or

VI ≥ VDD − 0.3 V, SCLK=VDD,

VDD = 4.5 V to 5.5 V

3

5

µA

Selected analog input channel

Selected channel at VDD

1

A

Selected analog input channel

leakage current

Selected channel at 0 V

−1

µA

Ci

Input capacitance

Analog inputs

11

14

pF

Ci

Input capacitance

Control Inputs

20

25

pF

Zi

Input resistance

VDD = 5.5 V

500

Ω

ac specifications (TLC4541/45)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

SINAD

Signal-to-noise ratio + distortion

fI = 15 kHz at 200 KSPS

84.5

dB

SNR

Signal-to-noise ratio

fI = 15 kHz at 200 KSPS

85

dB

THD

Total harmonic distortion

TLC4541

fI = 15 kHz at 200 KSPS

−94

−87

dB

THD

Total harmonic distortion

TLC4545

fI = 15 kHz at 200 KSPS

−94

−89

dB

ENOB

Effective number of bits

fI = 15 kHz at 200 KSPS

13.7

Bits

SFDR

Spurious free dynamic range

TLC4541

fI = 15 kHz at 200 KSPS

−95

−87

dB

SFDR

Spurious free dynamic range

TLC4545

fI = 15 kHz at 200 KSPS

−95

−89

dB

Full power bandwidth, −3 dB, analog input

1

MHz

Full power bandwidth, −1 dB, analog input

500

kHz

Crosstalk

0.25 LBS

80

dB

dc specifications (TLC4541/45)

PARAMETER

TEST CONDITIONS

MIN

TYP†

MAX

UNIT

INL

Integral linearity error (see Note 1)

−2.5

2.5

LSB

DNL

Differential linearity error

−1

2

LSB

EO

Offset error (see Note 2)

TLC4541

−3.5

3.5

mV

EO

Offset error (see Note 2)

TLC4545

−1

1

mV

EG

Gain error (see Note 2)

TLC4541

−2

2

mV

EG

Gain error (see Note 2)

TLC4545

−1.8

1.8

mV

† All typical values are at VDD = 5 V, TA = 25°C.

NOTES:

1. Linear error is the maximum deviation from the best straight line through the A/D transfer characteristics.

2. Zero error is the difference between 0000h and the converted output for zero input voltage: full-scale error is the difference between

ideal full-scale and the converted output for full-scale input voltage.