SLCS016A − SEPTEMBER 1985 − REVISED SEPTEMBER 2002
D Single- or Dual-Supply Operation
D Wide Range of Supply Voltages
TLC352C, TLC352I . . . D OR P PACKAGE
(TOP VIEW)
1.5 V to 18 V
1OUT
1IN−
1IN+
GND
D Very Low Supply Current Drain
D
D
D
D
D
D
D
D
150 µA Typ at 5 V
65 µA Typ at 1.4 V
Built-In ESD Protection
High Input Impedance . . . 1012 Ω Typ
Extremely Low Input Bias Current 5 pA Typ
Ultrastable Low Input Offset Voltage
Input Offset Voltage Change at Worst-Case
Input Conditions Typically 0.23 µV/ Month,
Including the First 30 Days
Common-Mode Input Voltage Range
Includes Ground
Outputs Compatible With TTL, MOS, and
CMOS
Pin-Compatible With LM393
1
8
2
7
3
6
4
5
VDD
2OUT
2IN−
2IN+
symbol (each comparator)
IN+
OUT
IN−
description
This device is fabricated using LinCMOS technology and consists of two independent voltage comparators,
each designed to operate from a single power supply. Operation from dual supplies is also possible if the
difference between the two supplies is 1.4 V to 18 V. Each device features extremely high input impedance
(typically greater than 1012 Ω), which allows direct interface to high-impedance sources. The output are
n-channel open-drain configurations and can be connected to achieve positive-logic wired-AND relationships.
The capability of the TLC352 to operate from 1.4-V supply makes this device ideal for low-voltage battery
applications.
The TLC352 has internal electrostatic discharge (ESD) protection circuits and has been classified with a 2000-V
ESD rating tested under MIL-STD-883C, Method 3015. However, care should be exercised in handling this
device as exposure to ESD may result in degradation of the device parametric performance.
The TLC352C is characterized for operation from 0°C to 70°C. The TLC352I is characterized for operation over
the industrial temperature range of − 40°C to 85°C.
AVAILABLE OPTIONS
PACKAGE
TA
VIO max
AT 25°C
0°C to 70°C
− 40°C to 85°C
SMALL-OUTLINE
(D)
PLASTIC DIP
(P)
5 mV
TLC352CD
TLC352CP
5 mV
TLC352ID
TLC352IP
The D packages are available taped and reeled. Add R suffix to device type (e.g., TLC352 CDR).
LinCMOS is a trademark of Texas Instruments Incorporated.
Copyright 2002, Texas Instruments Incorporated
!" #$
# % &
## '($ # ) # "( "#
) "" $
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
1
SLCS016A − SEPTEMBER 1985 − REVISED SEPTEMBER 2002
equivalent schematic (each comparator)
Common to All Channels
VDD
OUT
GND
IN−
IN+
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)†
Supply voltage, VDD (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 V
Differential input voltage, VID (see Note 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ± 18 V
Input voltage, VI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . VDD
Input voltage range, VI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . − 0.3 V to 18 V
Output voltage, VO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 V
Input current, II . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ± 5 mA
Output current, IO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 mA
Duration of output short circuit to ground (see Note 3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . unlimited
Continuous total dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . See Dissipation Rating Table
Operating free-air temperature range, TA TLC352C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0°C to 70°C
TLC352I . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . − 40°C to 85°C
Storage temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . − 65°C to 150°C
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds: D or P package . . . . . . . . . . . . . . . . . 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.
NOTES: 1. All voltage values except differential voltages are with respect to the network ground.
2. Differential voltages are at IN+ with respect to IN −.
3. Short circuits from outputs to VDD can cause excessive heating and eventual device destruction.
DISSIPATION RATING TABLE
2
PACKAGE
TA ≤ 25°C
POWER RATING
DERATING
FACTOR
DERATE
ABOVE TA
TA = 70°C
POWER RATING
TA = 85°C
POWER RATING
D
P
500 mW
500 mW
5.8 mW/°C
N/A
64°C
N/A
464 mW
500 mW
377 mW
500 mW
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
VDD = 5 V
VDD = 10 V
0
0
0
1.4
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
Input bias current
Common-mode input voltage range
Low-level output voltage
Low-level output current
Supply current (two comparators)
IIB
VICR
VOL
IOL
IDD
VID = 0.5 V,
VID = − 0.5 V,
VIC = VICR min,
No load
VOL = 0.3 V
See Note 4
TEST CONDITIONS
Full range
25°C
25°C
Full range
25°C
Full range
MAX
25°C
MAX
25°C
Full range
25°C
TA†
1
0 to
0.2
MIN
65
1.6
100
5
1
2
TYP
TLC352C
200
150
200
200
0.6
0.3
6.5
5
MAX
1
0 to
0.2
MIN
70
8.5
65
1.6
100
5
1
2
TYP
TLC352I
− 40
0
0
1.4
16
200
150
200
200
2
1
7
5
MAX
85
8.5
3.5
µA
mA
mV
V
nA
pA
nA
pA
mV
UNIT
°C
V
V
UNIT
† All characteristics are measured with zero common-mode input voltage unless otherwise noted. Full range is 0°C to 70°C for TLC352C, − 40°C to 85°C for TLC352I. IMPORTANT:
See Parameter Measurement Information.
NOTE 4: The offset voltage limits given are the maximum values required to drive the output above 1.25 V or below 150 mV with a 10-kΩ resistor between the output and VDD. They
can be verified by applying the limit value to the input and checking for the appropriate output state.
Input offset current
Input offset voltage
IIO
VIO
PARAMETER
16
3.5
MAX
MIN
MIN
MAX
TLC352I
TLC352C
electrical characteristics at specified free-air temperature, VDD = 1.4 V (unless otherwise noted)
Operating free-air temperature, TA
Common-mode input voltage, VIC
Supply voltage, VDD
recommended operating conditions
TM
****
**
SLCS016A − SEPTEMBER 1985 − REVISED SEPTEMBER 2002
3
4
VID = − 1 V,
VID = 1 V,
Low-level output current
Supply current
(two comparators)
IDD
No load
VOL = 1.5 V
IOL = 4 mA
VOH = 5 V
VOH = 15 V
See Note 5
Full range
25°C
25°C
Full range
25°C
Full range
25°C
6
0.15
16
150
0.4
0.3
700
400
1
6
0 to
VDD − 1.5
0.15
16
150
0.1
5
1
1
TYP
TLC352I
0 to
VDD − 1.5
MIN
Full range
0.6
0.3
6.5
5
MAX
25°C
0.1
5
1
1
TYP
TLC352C
0 to
VDD − 1
MIN
0 to
VDD − 1
MAX
25°C
MAX
25°C
Full range
25°C
TA†
0.4
0.3
700
400
1
2
1
7
5
MAX
mA
mA
mV
µA
nA
V
nA
pA
nA
pA
mV
UNIT
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
RL connected to 5 V through 5.1 kΩ,,
CL = 15 pF‡,
See Note 6
650
200
TYP
TTL-level input step
MIN
MAX
TLC352C, TLC352I
100-mV input step with 5-mV overdrive
TEST CONDITIONS
‡ CL includes probe and jig capacitance.
NOTE 6: The response time specified is the interval between the input step function and the instant when the output crosses 1.4 V.
Response time
PARAMETER
switching characteristics, VDD = 5 V, TA = 25°C
ns
UNIT
† All characteristics are measured with zero common-mode input voltage unless otherwise noted. Full range is 0°C to 70°C for TLC352C, − 40°C to 85°C for TLC352I. IMPORTANT:
See Parameter Measurement Information.
NOTE 5: The offset voltage limits given are the maximum values required to drive the output above 4 V or below 400 mV with a 10-kΩ resistor between the output and VDD. They
can be verified by applying the limit value to the input and checking for the appropriate output state.
VID = 1 V,
IOL
VID = 1 V
Low-level output voltage
Common-mode input voltage range
VICR
VOL
Input bias current
IIB
High-level output current
Input offset current
IIO
VIC = VICR min,
TEST CONDITIONS
IOH
Input offset voltage
VIO
PARAMETER
electrical characteristics at specified free-air temperature, VDD = 5 V (unless otherwise noted)
Template Release Date: 7−11−94
TM
*****
**
SLCS016A − SEPTEMBER 1985 − REVISED SEPTEMBER 2002
SLCS016A − SEPTEMBER 1985 − REVISED SEPTEMBER 2002
PARAMETER MEASUREMENT INFORMATION
The digital output stage of the TLC352 can be damaged if it is held in the linear region of the transfer curve.
Conventional operational amplifier/comparator testing incorporates the use of a servo loop that is designed to force
the device output to a level within this linear region. Since the servo-loop method of testing cannot be used, the
following alternative for measuring parameters such as input offset voltage, common-mode rejection, etc., are
offered.
To verify that the input offset voltage falls within the limits specified, the limit value is applied to the input as shown
in Figure 1(a). With the noninverting input positive with respect to the inverting input, the output should be high. With
the input polarity reversed, the output should be low.
A similar test can be made to verify the input offset voltage at the common-mode extremes. The supply voltages can
be slewed as shown in Figure 1(b) for the VICR test, rather than changing the input voltages, to provide greater
accuracy.
A close approximation of the input offset voltage can be obtained by using a binary search method to vary the
differential input voltage while monitoring the output state. When the applied input voltage differential is equal but
opposite in polarity to the input offset voltage, the output changes state.
5V
1V
5.1 kΩ
5.1 kΩ
+
+
−
−
Applied VIO
Limit
VO
Applied VIO
Limit
VO
−4V
(a) VIO WITH VIC = 0
(b) VIO WITH VIC = 4 V
Figure 1. Method for Verifying That Input Offset Voltage Is Within Specified Limits
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• DALLAS, TEXAS 75265
5
SLCS016A − SEPTEMBER 1985 − REVISED SEPTEMBER 2002
PARAMETER INFORMATION
Figure 2 illustrates a practical circuit for direct dc measurement of input offset voltage that does not bias the
comparator into the linear region. The circuit consists of a switching-mode servo loop in which U1a generates a
triangular waveform of approximately 20-mV amplitude. U1b acts as a buffer, with C2 and R4 removing any residual
dc offset. The signal is then applied to the inverting input of the comparator under test, while the noninverting input
is driven by the output of the integrator formed by U1c through the voltage divider formed by R9 and R10. The loop
reaches a stable operating point when the output of the comparator under test has a duty cycle of exactly 50%, which
can only occur when the incoming triangle wave is sliced symmetrically or when the voltage at the noninverting input
exactly equals the input offset voltage.
Voltage divider R9 and R10 provides a step up of the input offset voltage by a factor of 100 to make measurement
easier. The values of R5, R8, R9, and R10 can significantly influence the accuracy of the reading; therefore, it is
suggested that their tolerance level be 1% or lower.
Measuring the extremely low values of input current requires isolation from all other sources of leakage current and
compensation for the leakage of the test socket and board. With a good picoammeter, the socket and board leakage
can be measured with no device in the socket. Subsequently, this open-socket leakage value can be subtracted from
the measurement obtained with a device in the socket to obtain the actual input current of the device.
R5
1.8 kΩ, 1%
VDD
U1b
1/4 TLC274CN
Buffer
+
C2
1 µF
U1c
1/4 TLC274CN
−
DUT
−
R1
240 kΩ
−
C1
0.1 µF
R6
5.1 kΩ
C3 0.68 µF
+
R3
100 kΩ
R7
1MΩ
R4
47 kΩ
Integrator
R8
1.8 kΩ, 1%
U1a
1/4 TLC274CN
Triangle
Generator
R10
100 Ω, 1%
C4
0.1 µF
R9
10 kΩ, 1%
R2
10 kΩ
Figure 2. Circuit for Input Offset Voltage Measurement
6
VIO
(X100)
+
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• DALLAS, TEXAS 75265
SLCS016A − SEPTEMBER 1985 − REVISED SEPTEMBER 2002
PARAMETER MEASUREMENT INFORMATION
Response time is defined as the interval between the application of an input step function and the instant when the
output reaches 50% of its maximum value. Response time, low-to-high-level output, is measured from the leading
edge of the input pulse, while response time, high-to-low level output, is measured from the trailing edge of the input
pulse. Response-time measurement at low input signal levels can be greatly affected by the input offset voltage. The
offset voltage should be balanced by the adjustment at the inverting input (as shown in Figure 3) so that the circuit
is just at the transition point. Then a low signal, for example 105-mV or 5-mV overdrive, causes the output to change
state.
VDD
1 µF
5.1 kΩ
Pulse Generator
DUT
50 Ω
CL
(see Note A)
1V
Input
Offset Voltage
Compensation
Adjustment
10 Ω
10 Turn
1 kΩ
0.1 mF
−1V
TEST CIRCUIT
Overdrive
Overdrive
Input
Input
100 mV
100 mV
90%
90%
50 %
Low-to-HighLevel Output
10%
High-to-LowLevel Output
tr
50%
10%
tf
tPLH
tPHL
VOLTAGE WAVEFORMS
NOTE A: CL includes probe and jig capacitance.
Figure 3. Response, Rise, and Fall Times Circuit and Voltage Waveforms
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7
PACKAGE OPTION ADDENDUM
www.ti.com
14-Oct-2022
PACKAGING INFORMATION
Orderable Device
Status
(1)
Package Type Package Pins Package
Drawing
Qty
Eco Plan
(2)
Lead finish/
Ball material
MSL Peak Temp
Op Temp (°C)
Device Marking
(3)
Samples
(4/5)
(6)
TLC352CD
ACTIVE
SOIC
D
8
75
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
0 to 70
352C
Samples
TLC352CDR
ACTIVE
SOIC
D
8
2500
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
0 to 70
352C
Samples
TLC352CP
ACTIVE
PDIP
P
8
50
RoHS & Green
NIPDAU
N / A for Pkg Type
0 to 70
TLC352CP
Samples
TLC352CPWR
ACTIVE
TSSOP
PW
8
2000
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
0 to 70
P352
Samples
TLC352ID
ACTIVE
SOIC
D
8
75
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 85
352I
Samples
TLC352IDG4
ACTIVE
SOIC
D
8
75
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 85
352I
Samples
TLC352IDR
ACTIVE
SOIC
D
8
2500
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 85
352I
Samples
TLC352IDRG4
ACTIVE
SOIC
D
8
2500
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 85
352I
Samples
TLC352IP
ACTIVE
PDIP
P
8
50
RoHS & Green
NIPDAU
N / A for Pkg Type
-40 to 85
TLC352IP
Samples
TLC352IPW
ACTIVE
TSSOP
PW
8
150
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 85
P352I
Samples
TLC352IPWR
ACTIVE
TSSOP
PW
8
2000
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 85
P352I
Samples
(1)
The marketing status values are defined as follows:
ACTIVE: Product device recommended for new designs.
LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.
NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design.
PREVIEW: Device has been announced but is not in production. Samples may or may not be available.
OBSOLETE: TI has discontinued the production of the device.
(2)
RoHS: TI defines "RoHS" to mean semiconductor products that are compliant with the current EU RoHS requirements for all 10 RoHS substances, including the requirement that RoHS substance
do not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, "RoHS" products are suitable for use in specified lead-free processes. TI may
reference these types of products as "Pb-Free".
RoHS Exempt: TI defines "RoHS Exempt" to mean products that contain lead but are compliant with EU RoHS pursuant to a specific EU RoHS exemption.
Green: TI defines "Green" to mean the content of Chlorine (Cl) and Bromine (Br) based flame retardants meet JS709B low halogen requirements of