PRELIMINARY INFORMATION
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EVALUATION
KIT
AVAILABLE
TC1027
LINEAR BUILDING BLOCK – QUAD LOW POWER COMPARATOR
AND VOLTAGE REFERENCE
FEATURES
GENERAL DESCRIPTION
■ Combines Four Comparators and a Voltage
Reference into a Single Package
■ Optimized for Single Supply Operation
■ Small Package ................. 16-Pin SOIC (Narrow) or
16-Pin Plastic DIP (Narrow)
■ Ultra Low Input Bias Current ...... Less than 100pA
■ Low Quiescent Current ........................... 15µA max
■ Rail-to-Rail Inputs and Outputs
The TC1027 is a mixed-function device combining four
general purpose, complimentary output comparators and a
voltage reference in a single 16-pin package.
This increased integration allows the user to replace
two packages, saving space, lowering supply current, and
increasing system performance.
The TC1027 is designed specifically for operation from
a single supply; however, operation from dual supplies is
also possible. The power supply current drain is indepen-
dent of the magnitude of the power supply voltage. The
TC1027 is optimized for low supply voltage and very low
supply current operation (15µA max) making it ideal for
battery operated applications.
Packaged in a 16-pin QSOP, SOIC (0.150 wide) or 16-
pin DIP, the TC1027 is ideal for applications requiring high
integration, small size and low power.
■ Operates Down to VDD = 1.8V min.
APPLICATIONS
■ Power Supply Circuits
■ Embedded Systems
■ Instrumentation
■ Portable Equipment
■ Consumer Products
■ Replacements for Discrete Components
FUNCTIONAL BLOCK DIAGRAM
ORDERING INFORMATION
OUTC
OUTD
OUTB
OUTA
Part No.
Package
Temp. Range
TC1027COR
TC1027CPE
TC1027CQR
TC1027EOR
TC1027EPE
TC1027EQR
TC43EV
16-Pin SOIC (Narrow)
16-Pin Plastic DIP
16-Pin QSOP
0°C to +70°C
0°C to +70°C
A
VDD
D
GND
–
+
–
+
0°C to +70°C
INA–
INA+
IND+
IND–
TC1027
16-Pin SOIC (Narrow)
16-Pin Plastic DIP
16-Pin QSOP
– 40°C to +85°C
– 40°C to +85°C
– 40°C to +85°C
B
C
–
+
–
+
INB–
INB+
INC+
INC–
Evaluation Kit for Linear
Building Block Family
Voltage
Reference
REF+
VSS
PIN CONFIGURATIONS
16-Pin Plastic DIP (Narrow)
16-Pin QSOP
16-Pin SOIC (Narrow)
OUTB
OUTA
1
2
3
4
5
6
7
8
16 OUTC
OUTD
OUTB
OUTA
1
2
3
4
5
6
7
8
16 OUTC
OUTD
OUTB
OUTA
VDD
1
2
3
4
5
6
7
8
OUTC
OUTD
16
15
15
15
V
VDD
INA–
INA+
DD
14 GND
14 GND
14 GND
INA–
INA+
+
IND+
13
IND+
13
–
IND
INA
13
12
TC1027CPE
TC1027EPE
TC1027-
CQR
TC1027-
EQR
TC1027COR
TC1027EOR
+
–
12 IND–
11 INC+
INA
IND
IND–
12
–
+
INB
11 INC
INB–
INB+
REF+
INB–
INB+
REF+
INC+
11
+
–
INB
10 INC
9
INC–
10
INC–
10
+
REF
VSS
9
9
VSS
V
SS
TC1027-01 11/15/96
TELCOM SEMICONDUCTOR, INC.
3-313