
ICL7135C, TLC7135C
4 1/2-DIGIT PRECISION
ANALOG-TO-DIGITAL CONVERTERS
SLAS074B – DECEMBER 1986 – REVISED MAY 1999
3
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage (V
CC+
with respect to V
CC–
)
Analog input voltage (IN– or IN+)
Reference voltage range
Clock input voltage range
Operating free-air temperature range, T
A
Storage temperature range, T
stg
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds: N package
15 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
V
CC–
to V
CC+
V
CC–
to V
CC+
0 V to V
CC+
0
°
C to 70
°
C
–65
°
C to 150
°
C
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.
recommended operating conditions
MIN
NOM
MAX
UNIT
Supply voltage, VCC+
Supply voltage, VCC–
Reference voltage, Vref
High-level input voltage, CLK, RUN/HOLD, VIH
Low-level input voltage, CLK, RUN/HOLD, VIL
Differential input voltage, VID
Maximum operating frequency, fclock (see Note 1)
Operating free-air temperature range, TA
NOTE 1: Clock frequency range extends down to 0 Hz.
4
5
6
V
–3
–5
–8
V
1
V
2.8
V
0.8
V
VCC– +1
1.2
VCC+ –0.5
V
2
MHz
°
C
0
70
electrical characteristics, V
CC+
= 5 V, V
CC–
= 5 V, V
ref
= 1 V, f
clock
= 120 kHz, T
A
= 25
°
C (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
IO = –1 mA
IO = –10
μ
A
IO = 1.6 mA
VID = 0,
Full scale = 2 V
VID = 0,
0
°
C
≤
TA
≤
70
°
C
VI = 5 V,
0
°
C
≤
TA
≤
70
°
C
VI = 0 V,
0
°
C
≤
TA
≤
70
°
C
TA = 25
°
C
VID = 0
0
°
C
≤
TA
≤
70
°
C
TA = 25
°
C
fclock = 0
0
°
C
≤
TA
≤
70
°
C
TA = 25
°
C
fclock = 0
0
°
C
≤
TA
≤
70
°
C
See Note 3
MIN
2.4
TYP
MAX
UNIT
VOH
High level output voltage
High-level output voltage
D1-D5,B1,B2,B4,B8
5
V
Other outputs
4.9
5
VOL
VON(PP)
α
VO
IIH
IIL
Low-level output voltage
0.4
V
μ
V
Peak-to-peak output noise voltage (see Note 2)
15
Zero-reading temperature coefficient of output voltage
0.5
2
μ
V/
°
C
μ
A
mA
High-level input current
0.1
10
Low-level input current
–0.02
–0.1
II
Input leakage current IN
Input leakage current, IN– and IN+
VID= 0
1
10
pA
250
ICC+
Positive supply current
fl
k= 0
1
2
mA
3
ICC–
Negative supply current
fl
k= 0
–0.8
–2
mA
–3
Cpd
NOTES:
Power dissipation capacitance
40
pF
2. This is the peak-to-peak value that is not exceeded 95% of the time.
3. Factor-relating clock frequency to increase in supply current. At VCC+ = 5 V, ICC+ = ICC+(fclock = 0) + Cpd
×
5 V
×
fclock