PRELIMINARY INFORMATION
PRECISIONTEMPERATURE-TO-VOLTAGE
CONVERTERS WITH SHUTDOWN MODE
TC1023
TC1024
* 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.
ABSOLUTE MAXIMUM RATINGS *
Supply Voltage ............................................................15V
Input Voltage, Any Terminal ..............– 1.0 to (VCC +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
ELECTRICAL CHARACTERISTICS : TA = – 20°C to +125°C, VCC = 5V ±5%, GND = 0V, unless otherwise specified.
Symbol
Parameter
Test Conditions
Min
Typ
Max
Unit
VCC
Supply Voltage (TC1023)
(TC1024)
2.2
3.0
—
—
12
12
V
IS
Supply Current
CE = VIL
(Note 1)
—
40
60
µA
µA
ICE
Shutdown Current
CE = VIH
(Note 2)
—
1
5
VIH
VIL
CE Input Logic HIGH Level
CE Input Logic LOW Level
CE Input Leakage Current
Recovery Time from Shutdown
2.0
—
—
—
—
0.8
+1
—
V
V
ICE
CE = VIH or VIL
–1
—
—
µA
µsec
tREC
CE = step from VIH to VIL
(Note 3)
400
VOUT
VOUT Output Voltage (TC1024)
TA = – 20°C and +125°C
270
—
—
1780
1030
mV
VOUT Output Voltage (TC1023)
TA = – 20°C and +100°C
Circuit per Figure 1:
R1 = 240kΩ
– 230
VSS = – 12V
(Note 1)
ISRC
VOUT Output Source Current
Accuracy at Room Temperature
—
—
—
1.0
+2
mA
TA = +25°C
– 2
°C
(Note 4)
Accuracy at Minimum Temperature
Accuracy at Maximum Temperature
TC1023: TA = – 20°C
TC1024: TA = – 20°C
(Note 4)
– 4
– 3
—
—
+4
+3
°C
°C
TC1023: TA = +100°C
TC1024: TA = +125°C
(Note 4)
Nonlinearity
Note 5
– 0.8
—
—
80
10
—
+0.8
—
°C
µV/V
mV/°C
V
Line Regulation
AV
Average Slope of Output Voltage
Maximum Output Voltage
—
—
VOUTMAX
TC1023: 2.2V ≤ VCC ≤ 12V
TC1024: 3.0V ≤ VCC ≤ 12V
(Note 1)
—
VCC – 1.2
NOTES: 1. VOUT outputs open circuited.
2. VOUT is 0V through approximately 100kΩ to ground when CE = VIH
.
3. Recovery time is the period required for VOUT 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 ]
