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TLC2654, TLC2654A
Advanced LinCMOS LOW-NOISE CHOPPER-STABILIZED
OPERATIONAL AMPLIFIERS
SLOS020G – NOVEMBER 1988 – REVISED APRIL 2001
D
D
D
D
D
D
D
D
D
D
D
D
D
Input Noise Voltage
0.5
µV
(Peak-to-Peak) Typ, f = 0 to 1 Hz
1.5
µV
(Peak-to-Peak) Typ, f = 0 to 10 Hz
47 nV/√Hz Typ, f = 10 Hz
13 nV/√Hz Typ, f = 1 kHz
High Chopping Frequency . . . 10 kHz Typ
No Clock Noise Below 10 kHz
No Intermodulation Error Below 5 kHz
Low Input Offset Voltage
10
µV
Max (TLC2654A)
Excellent Offset Voltage Stability
With Temperature . . . 0.05
µV/°C
Max
A
VD
. . . 135 dB Min (TLC2654A)
CMRR . . . 110 dB Min (TLC2654A)
k
SVR
. . . 110 dB Min
Single-Supply Operation
Common-Mode Input Voltage Range
Includes the Negative Rail
No Noise Degradation With External
Capacitors Connected to V
DD –
Available in Q-Temp Automotive
HighRel Automotive Applications
Configuration Control/Print Support
Qualification to Automotive Standards
D, JG, OR P PACKAGE
(TOP VIEW)
C
XA
IN –
IN +
V
DD –
1
2
3
4
8
7
6
5
C
XB
V
DD +
OUT
CLAMP
D, J, OR N PACKAGE
(TOP VIEW)
C
XB
C
XA
NC
IN –
IN +
NC
V
DD –
1
2
3
4
5
6
7
14
13
12
11
10
9
8
INT/EXT
CLK IN
CLK OUT
V
DD +
OUT
CLAMP
C RETURN
FK PACKAGE
(TOP VIEW)
description
The TLC2654 and TLC2654A are low-noise
chopper-stabilized operational amplifiers using
the Advanced LinCMOS process. Combining
this process with chopper-stabilization circuitry
makes excellent dc precision possible. In addition,
circuit techniques are added that give the
TLC2654 and TLC2654A superior noise perfor-
mance.
NC
NC
IN –
NC
IN +
4
5
6
7
8
3 2 1 20 19
18
17
16
15
14
9 10 11 12 13
C
XA
C
XB
NC
INT/EXT
CLK IN
CLK OUT
NC
V
DD +
NC
OUT
NC – No internal connection
Copyright
2001, Texas Instruments Incorporated
On products compliant to MIL-PRF-38535, all parameters are tested
unless otherwise noted. On all other products, production
processing does not necessarily include testing of all parameters.
Chopper-stabilization techniques provide for extremely high dc precision by continuously nulling input offset
voltage even during variations in temperature, time, common-mode voltage, and power-supply voltage. The
high chopping frequency of the TLC2654 and TLC2654A (see Figure 1) provides excellent noise performance
in a frequency spectrum from near dc to 10 kHz. In addition, intermodulation or aliasing error is eliminated from
frequencies up to 5 kHz.
This high dc precision and low noise, coupled with the extremely high input impedance of the CMOS input stage,
makes the TLC2654 and TLC2654A ideal choices for a broad range of applications such as low-level,
low-frequency thermocouple amplifiers and strain gauges and wide-bandwidth and subsonic circuits. For
applications requiring even greater dc precision, use the TLC2652 or TLC2652A devices, which have a
chopping frequency of 450 Hz.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
Advanced LinCMOS is a trademark of Texas Instruments.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
POST OFFICE BOX 655303
•
DALLAS, TEXAS 75265
V
DD –
NC
C RETURN
CLAMP
NC
1
TLC2654, TLC2654A
Advanced LinCMOS LOW-NOISE CHOPPER-STABILIZED
OPERATIONAL AMPLIFIERS
SLOS020G – NOVEMBER 1988 – REVISED APRIL 2001
description (continued)
The TLC2654 and TLC2654A common-mode
input voltage range includes the negative rail,
thereby providing superior performance in either
single-supply or split-supply applications, even at
power supply voltage levels as low as
±
2.3 V.
Two external capacitors are required to operate
the device; however, the on-chip chopper-control
circuitry is transparent to the user. On devices in
the 14-pin and 20-pin packages, the control
circuitry is accessible, allowing the user the option
of controlling the clock frequency with an external
frequency source. In addition, the clock threshold
of the TLC2554 and TLC2654A requires no level
shifting when used in the single-supply configura-
tion with a normal CMOS or TTL clock input.
Innovative circuit techniques used on the
TLC2654 and TLC2654A allow exceptionally fast
overload recovery time. An output clamp pin is
available to reduce the recovery time even further.
10 k
Vn – Equivalent Input Noise Voltage – nV/XXVZ
nV/ Hz
Vn
EQUIVALENT INPUT NOISE VOLTAGE
vs
FREQUENCY
1k
Typical 250-Hz
Chopper-Stabilized
Operational Amplifier
100
TLC2654
10
1
10
100
1k
f – Frequency – Hz
Figure 1
The device inputs and outputs are designed to
withstand – 100-mA surge currents without
sustaining latch-up. In addition, the TLC2654 and TLC2654A incorporate internal ESD-protection circuits that
prevent functional failures at voltages up to 2000 V as tested under MIL-STD-883C, Method 3015; however,
exercise care in handling these devices, as exposure to ESD may result in degradation of the device parametric
performance.
The C-suffix devices are characterized for operation from 0°C to 70°C. The I-suffix devices are characterized
for operation from – 40°C to 85°C. The Q-suffix devices are characterized for operation from – 40°C to 125°C.
The M-suffix devices are characterized for operation over the full military temperature range of – 55°C to125°C.
AVAILABLE OPTIONS
PACKAGED DEVICES
TA
VIOmax
AT 25°C
8 PIN
SMALL
OUTLINE
(D)
TLC2654AC-8D
TLC2654C 8D
TLC2654C-8D
TLC2654AI-8D
TLC2654I-8D
TLC2654I 8D
TLC2654AQ-8D
TLC2654Q 8D
TLC2654Q-8D
TLC2654AM-8D
TLC2654M 8D
TLC2654M-8D
CERAMIC
DIP
(JG)
—
—
—
—
—
—
TLC2654AMJG
TLC2654MJG
PLASTIC
DIP
(P)
TLC2654ACP
TLC2654CP
TLC2654AIP
TLC2654IP
—
—
TLC2654AMP
TLC2654MP
SMALL
OUTLINE
(D)
TLC2654AC-14D
TLC2654C 14D
TLC2654C-14D
TLC2654AI-14D
TLC2654I-14D
TLC2654I 14D
—
—
TLC2654AM-14D
TLC2654M 14D
TLC2654M-14D
14 PIN
CERAMIC
DIP
(J)
—
—
—
—
—
—
TLC2654AMJ
TLC2654MJ
PLASTIC
DIP
(N)
TLC2654ACN
TLC2654CN
TLC2654AIN
TLC2654IN
—
—
TLC2654AMN
TLC2654MN
20 PIN
CERAMIC
DIP
(FK)
—
—
—
—
—
—
TLC2654AMFK
TLC2654MFK
0°C to 70°C
– 40°C to 85°C
– 40°C to 125°C
– 55°C to 125°C
10
µV
20 mV
10
µV
20
µV
10
µV
20
µV
10
µV
20
µV
The 8-pin and 14-pin D packages are available taped and reeled. Add R suffix to device type (e.g., TLC2654AC-8DR).
2
POST OFFICE BOX 655303
•
DALLAS, TEXAS 75265
TLC2654, TLC2654A
Advanced LinCMOS LOW-NOISE CHOPPER-STABILIZED
OPERATIONAL AMPLIFIERS
SLOS020G – NOVEMBER 1988 – REVISED APRIL 2001
functional block diagram
VDD +
11
Clamp
Circuit
IN +
IN –
5
4
B
A
+
–
Null
A
1
CXB
B
2
CXA
8
C RETURN
Compensation-
Biasing
Circuit
External Components
B
+
–
Main
CIC
A
9
10
CLAMP
OUT
7
VDD –
Pin numbers shown are for the D (14 pin), J, and N packages.
POST OFFICE BOX 655303
•
DALLAS, TEXAS 75265
3
TLC2654, TLC2654A
Advanced LinCMOS LOW-NOISE CHOPPER-STABILIZED
OPERATIONAL AMPLIFIERS
SLOS020G – NOVEMBER 1988 – REVISED APRIL 2001
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
†
Supply voltage, V
DD +
(see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 V
Supply voltage, V
DD –
(see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 8 V
Differential input voltage, V
ID
(see Note 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
±
16 V
Input voltage, V
I
(any input, see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
±
8 V
Voltage range on CLK IN and INT/EXT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . V
DD –
to V
DD –
+ 5.2 V
Input current, I
I
(each input) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
±
5 mA
Output current, I
O
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
±
50 mA
Duration of short-circuit current at (or below) 25°C (see Note 3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . unlimited
Current into CLK IN and INT/EXT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
±
5 mA
Continuous total dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . See Dissipation Rating Table
Operating free-air temperature range, T
A
: C suffix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0°C to 70°C
I suffix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 40°C to 85°C
Q suffix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 40°C to 125°C
M suffix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 55°C to 125°C
Storage temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 65°C to 150°C
Case temperature for 60 seconds: FK package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260°C
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds: D, N, or P package . . . . . . . . . . . . . 260°C
Lead temperature 1,6 mm (1/16 inch) from case for 60 seconds: J or JG package . . . . . . . . . . . . . . . . 300°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 midpoint between VDD + and VDD – .
2. Differential voltages are at IN+ with respect to IN –.
3. The output may be shorted to either supply. Temperature and/or supply voltages must be limited to ensure that the maximum
dissipation rating is not exceeded.
DISSIPATION RATING TABLE
PACKAGE
D (8 pin)
in)
D (14 pin)
(
)
FK
J
JG
N
P
TA
≤
25°C
POWER RATING
725 mW
950 mW
1375 mW
1375 mW
1050 mW
1150 mW
1000 mW
DERATING FACTOR
ABOVE TA = 25°C
5.8 mW/ C
mW/°C
7.6 mW/°C
11.0 mW/°C
11.0 mW/°C
8.4 mW/°C
9.2 mW/°C
8.0 mW/°C
TA = 70°C
POWER RATING
464 mW
608 mW
880 mW
880 mW
672 mW
736 mW
640 mW
TA = 85°C
POWER RATING
377 mW
494 mW
715 mW
715 mW
546 mW
598 mW
520 mW
TA = 125°C
POWER RATING
145 mW
190 mW
275 mW
275 mW
210 mW
230 mW
200 mW
recommended operating conditions
C SUFFIX
MIN
Supply voltage, VDD
±
Common-mode input voltage, VIC
Clock input voltage
Operating free-air temperature, TA
±
2.3
VDD –
VDD –
0
MAX
±
8
VDD + – 2.3
VDD – + 5
70
MIN
±
2.3
VDD –
VDD –
– 40
I SUFFIX
MAX
±
8
VDD + – 2.3
VDD – + 5
85
Q SUFFIX
MIN
±
2.3
VDD –
VDD –
– 40
MAX
±
8
VDD + – 2.3
VDD – + 5
125
M SUFFIX
MIN
±
2.3
VDD –
VDD –
– 55
MAX
±
8
VDD + – 2.3
VDD – + 5
125
UNIT
V
V
V
°C
4
POST OFFICE BOX 655303
•
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