TLC1542EP, TLC1543EP

10BIT ANALOGTODIGITAL CONVERTERS WITH

SERIAL CONTROL AND 11 ANALOG INPUTS

SGLS152A − JANUARY 2004 − REVISED FEBRUARY 2006

10

POST OFFICE BOX 655303

operating characteristics over recommended operating free-air temperature range,

PARAMETER

TEST CONDITIONS

MIN

TYP†

MAX

UNIT

EL

Linearity error (see Note 6)

TLC1542-EP

±0.5

LSB

EL

Linearity error (see Note 6)

TLC1543-EP

±1

LSB

EZS

Zero-scale error (see Note 7)

TLC1542-EP

See Note 2

±1

LSB

EZS

Zero-scale error (see Note 7)

TLC1543-EP

See Note 2

±1

LSB

EFS

Full-scale error (see Note 7)

TLC1542-EP

See Note 2

±1

LSB

EFS

Full-scale error (see Note 7)

TLC1543-EP

See Note 2

±1

LSB

Total unadjusted error (see Note 8)

TLC1542-EP

±1

LSB

Total unadjusted error (see Note 8)

TLC1543-EP

±1

LSB

ADDRESS = 1011

512

Self-test output code (see Table 3 and Note 9)

ADDRESS = 1100

0

Self-test output code (see Table 3 and Note 9)

ADDRESS = 1101

1023

tconv

Conversion time

See timing diagrams

21

µs

tc

Total cycle time (access, sample, and conversion)

See timing diagrams

and Note 10

21

+10 I/O

CLOCK

periods

µs

tacq

Channel acquisition time (sample)

See timing diagrams

and Note 10

6

I/O

CLOCK

periods

tv

Valid time, DATA OUT remains valid after I/O CLOCK

↓

See Figure 6

10

ns

td(I/O-DATA)

Delay time, I/O CLOCK

↓ to DATA OUT valid

See Figure 6

240

ns

td(I/O-EOC)

Delay time, tenth I/O CLOCK

↓ to EOC↓

See Figure 7

70

240

ns

td(EOC-DATA)

Delay time, EOC

↑ to DATA OUT (MSB)

See Figure 8

100

ns

tPZH, tPZL

Enable time, CS

↓ to DATA OUT (MSB driven)

See Figure 3

1.3

µs

tPHZ, tPLZ

Disable time, CS

↑ to DATA OUT (high impedance)

See Figure 3

150

ns

tr(EOC)

Rise time, EOC

See Figure 8

300

ns

tf(EOC)

Fall time, EOC

See Figure 7

300

ns

tr(DATA)

Rise time, data bus

See Figure 6

300

ns

tf(DATA)

Fall time, data bus

See Figure 6

300

ns

td(I/O-CS)

Delay time, tenth I/O CLOCK

↓ to CS↓ to abort conversion

(see Note 11)

9

µs

† All typical values are at TA = 25°C.

NOTES:

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

7. Zero-scale error is the difference between 0000000000 and the converted output for zero input voltage; full-scale error is the

difference between 1111111111 and the converted output for full-scale input voltage.

8. Total unadjusted error comprises linearity, zero-scale, and full-scale errors.

9. Both the input address and the output codes are expressed in positive logic.

10. I/O CLOCK period = 1/(I/O CLOCK frequency) (see Figure 6)

11. Any transitions of CS are recognized as valid only if the level is maintained for a setup time plus two falling edges of the internal clock

(1.425

µs) after the transition.