
TLC1542C, TLC1542I, TLC1542M TLC1542Q, TLC1543C, TLC1543I, TLC1543Q
10-BIT ANALOG-TO-DIGITAL CONVERTERS WITH
SERIAL CONTROL AND 11 ANALOG INPUTS
SLAS052E – MARCH 1992 – OCTOBER 1998
8
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage range, V
CC
(see Note 1)
Input voltage range, V
I
Output voltage range, V
O
Positive reference voltage, V
ref+
Negative reference voltage, V
ref–
Peak input current (any input)
Peak total input current (all inputs)
Operating free-air temperature range, T
A
: TLC1542C, TLC1543C
–0.5 V to 6.5 V
–0.3 V to V
CC
+ 0.3 V
–0.3 V to V
CC
+ 0.3 V
V
CC
+ 0.1 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
–0.1 V
±
20 mA
±
30 mA
0
°
C to 70
°
C
–40
°
C to 85
°
C
–40
°
C to 125
°
C
–55
°
C to 125
°
C
–65
°
C to 150
°
C
. . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TLC1542I, TLC1543I
TLC1542Q, TLC1543Q
TLC1542M
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage temperature range, T
stg
Lead temperature 1,6 mm (1/16 inch) from the case for 10 seconds
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).
260
°
C
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
recommended operating conditions
MIN
4.5
NOM
MAX
5.5
UNIT
V
V
V
V
V
V
V
ns
ns
ns
μ
s
MHz
ns
ns
μ
s
μ
s
Supply voltage, VCC
Positive reference voltage, Vref+ (see Note 2)
Negative reference voltage, Vref– (see Note 2)
Differential reference voltage, Vref+ – Vref– (see Note 2)
Analog input voltage (see Note 2)
High-level control input voltage, VIH
Low-level control input voltage, VIL
Setup time, address bits at data input before I/O CLOCK
↑
, tsu(A) (see Figure 4)
Hold time, address bits after I/O CLOCK
↑
, th(A) (see Figure 4)
Hold time, CS low after last I/O CLOCK
↓
, th(CS) (see Figure 5)
Setup time, CS low before clocking in first address bit, tsu(CS) (see Note 3 and Figure 5)
Clock frequency at I/O CLOCK (see Note 4)
Pulse duration, I/O CLOCK high, twH(I/O)
Pulse duration, I/O CLOCK low, twL(I/O)
Transition time, I/O CLOCK, tt(I/O) (see Note 5 and Figure 6)
Transition time, ADDRESS and CS, tt(CS)
5
VCC
0
2.5
VCC
VCC+0.2
VCC
0
2
VCC = 4.5 V to 5.5 V
VCC = 4.5 V to 5.5 V
0.8
100
0
0
1.425
0
2.1
190
190
1
10
70
TLC1542C, TLC1543C
0
Operating free air temperature TA
Operating free-air temperature, TA
TLC1542I, TLC1543I
–40
85
°
C
TLC1542Q, TLC1543Q
TLC1542M
–40
–55
125
125
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
μ
s.
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
μ
s for remote data-acquisition
applications where the sensor and the A/D converter are placed several feet away from the controlling microprocessor.