PRELIMINARY INFORMATION
PRECISION TEMPERATURE-TO-VOLTAGE
CONVERTERS WITH SHUTDOWN MODE
TC1023
TC1024
ABSOLUTE MAXIMUM RATINGS *
Supply Voltage ............................................................15V
Input Voltage, Any Terminal .............. – 1.0 to (V
CC
+0.3V)
Operating Temperature (TC1023) ......... – 20°C to +100°C
Operating Temperature (TC1024) ......... – 20°C to +125°C
Storage Temperature ............................ – 55°C to +150°C
Lead Temperature (Soldering, 10 sec) ................. +300°C
* Static-sensitive device. Unused devices must be stored in conductive
material. Protect devices from static discharge and static fields. Stresses
above those listed under Absolute Maximum Ratings may cause perma-
nent damage to the device. These are stress ratings only and functional
operation of the device at these or any other conditions above those
indicated in the operational sections of the specifications is not implied.
Exposure to Absolute Maximum Rating Conditions for extended periods
may affect device reliability.
ELECTRICAL CHARACTERISTICS :
T
A
= – 20°C to +125°C
,
V
CC
= 5V
±5%,
GND = 0V, unless otherwise specified.
Symbol
V
CC
I
S
I
CE
V
IH
V
IL
I
CE
t
REC
V
OUT
Parameter
Supply Voltage (TC1023)
(TC1024)
Supply Current
Shutdown Current
CE Input Logic HIGH Level
CE Input Logic LOW Level
CE Input Leakage Current
Recovery Time from Shutdown
V
OUT
Output Voltage (TC1024)
V
OUT
Output Voltage (TC1023)
Test Conditions
Min
2.2
3.0
—
—
2.0
—
–1
—
270
– 230
Typ
—
—
40
1
—
—
—
400
—
—
Max
12
12
60
5
—
0.8
+1
—
1780
1030
Unit
V
µA
µA
V
V
µA
µsec
mV
CE = V
IL
(Note 1)
CE = V
IH
(Note 2)
CE = V
IH
or V
IL
CE = step from V
IH
to V
IL
(Note 3)
T
A
= – 20°C and +125°C
T
A
= – 20°C and +100°C
Circuit per Figure 1:
R1 = 240kΩ
V
SS
= – 12V
(Note 1)
T
A
= +25°C
(Note 4)
TC1023: T
A
= – 20°C
TC1024: T
A
= – 20°C
(Note 4)
TC1023: T
A
= +100°C
TC1024: T
A
= +125°C
(Note 4)
Note 5
I
SRC
V
OUT
Output Source Current
Accuracy at Room Temperature
Accuracy at Minimum Temperature
—
–2
–4
—
—
—
1.0
+2
+4
mA
°C
°C
°C
°C
µV/V
mV/°C
V
Accuracy at Maximum Temperature
–3
—
+3
A
V
V
OUTMAX
Nonlinearity
Line Regulation
Average Slope of Output Voltage
Maximum Output Voltage
TC1023: 2.2V
≤
V
CC
≤
12V
TC1024: 3.0V
≤
V
CC
≤
12V
(Note 1)
– 0.8
—
—
—
—
80
10
—
+0.8
—
—
V
CC
– 1.2
NOTES:
1. V
OUT
outputs open circuited.
2. V
OUT
is 0V through approximately 100kΩ to ground when CE = V
IH
.
3. Recovery time is the period required for V
OUT
to rise from 0V (shutdown state) to the voltage corresponding to the measured
temperature driving a 100pF capacitive load.
4. Accuracy = Difference between calculated output voltage (10mV/°C x Device case temperature at specified temperature and power
supply) and measured output voltage expressed in
°C.
5. Nonlinearity = deviation of output voltage versus temperature from the best-fit straight line over the device rated temperature range.
TC1023/1024-05 6/12/97
2
TELCOM [ TELCOM SEMICONDUCTOR, INC ]
