TLC1542EP, TLC1543EP

10BIT ANALOGTODIGITAL CONVERTERS WITH

SERIAL CONTROL AND 11 ANALOG INPUTS

SGLS152A − JANUARY 2004 − REVISED FEBRUARY 2006

8

POST OFFICE BOX 655303

−0.5 V to 6 V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

−0.1 V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Peak input current (any input)

±20 mA

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Peak total input current (all inputs)

±30 mA

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

−40

°C to 125°C

.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

−65

°C to 150°C

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Lead temperature 1,6 mm (1/16 inch) from the case for 10 seconds

260

°C

. . . . . . . . . . . . . . . . . . . . . . . . . . . .

† Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and

functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not

implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

NOTE 1: All voltage values are with respect to digital ground with REF − and GND wired together (unless otherwise noted).

recommended operating conditions

MIN

NOM

MAX

UNIT

Supply voltage, VCC

4.5

5

5.5

V

Positive reference voltage, Vref + (see Note 2)

VCC

V

Negative reference voltage, Vref − (see Note 2)

0

V

Differential reference voltage, Vref + − Vref − (see Note 2)

2.5

VCC VCC + 0.2

V

Analog input voltage (see Note 2)

0

VCC

V

High-level control input voltage, VIH

VCC = 4.5 V to 5.5 V

2

V

Low-level control input voltage, VIL

VCC = 4.5 V to 5.5 V

0.8

V

Setup time, address bits at data input before I/O CLOCK

↑, tsu(A) (see Figure 4)

100

ns

Hold time, address bits after I/O CLOCK

↑, th(A) (see Figure 4)

0

ns

Hold time, CS low after last I/O CLOCK

↓, th(CS) (see Figure 5)

0

ns

Setup time, CS low before clocking in first address bit, tsu(CS) (see Note 3 and Figure 5)

1.425

µs

Clock frequency at I/O CLOCK (see Note 4)

0

2.1

MHz

Pulse duration, I/O CLOCK high, twH(I/O)

190

ns

Pulse duration, I/O CLOCK low, twL(I/O)

190

ns

Transition time, I/O CLOCK, tt(I/O) (see Note 5 and Figure 6)

1

µs

Transition time, ADDRESS and CS, tt(CS)

10

µs

Operating free-air temperature, TA

TLC1542-EP, TLC1543-EP

−40

125

°C

NOTES:

2. Analog input voltages greater than that applied to REF+ convert as all ones (1111111111), while input voltages less than that applied

to REF− convert as all zeros (0000000000). The device is functional with reference voltages down to 1 V (Vref + − Vref −); however,

the electrical specifications are no longer applicable.

3. To minimize errors caused by noise at CS, the internal circuitry waits for a setup time plus two falling edges of the internal system

clock after CS

↓ before responding to control input signals. Therefore, no attempt should be made to clock in an address until the

minimum CS setup time has elapsed.

4. For 11- to 16-bit transfers, after the tenth I/O CLOCK falling edge (

≤ 2 V) at least 1 I/O CLOCK rising edge (≥ 2 V) must occur within

9.5

µs.

5. This is the time required for the clock input signal to fall from VIHmin to VILmax or to rise from VILmax to VIHmin. In the vicinity of

normal room temperature, the devices function with input clock transition time as slow as 1

µs for remote data-acquisition

applications where the sensor and the A/D converter are placed several feet away from the controlling microprocessor.