Linear Technology LT1012S8, LT1012MH, LT1012IN8, LT1012DN8, LT1012DH Datasheet

FEATURES

■

OP-07 Type Performance:

at 1/8th of OP-07’s Supply Current
at 1/20th of OP-07’s Bias and Offset Currents

■

Guaranteed

■

Guaranteed

■

Guaranteed

■

Low Noise, 0.1Hz to 10Hz: 0.5µV

■

Guaranteed

■

Guaranteed

■

Guaranteed

■

Guaranteed

Offset Voltage: 25µV Max
Bias Current: 100pA Max
Drift: 0.6µV/°C Max

P-P

Low Supply Current: 500µA Max

CMRR: 114dB Min
PSRR: 114dB Min
Operation at ±1.2V Supplies

U

APPLICATIO S

■

Replaces OP-07 While Saving Power

■

Precision Instrumentation

■

Charge Integrators

■

Wide Dynamic Range Logarithmic Amplifiers

■

Light Meters

■

Low Frequency Active Filters

■

Thermocouple Amplifiers

LT1012A/LT1012

Picoamp Input Current,

Microvolt Offset,

Low Noise Op Amp

U

DESCRIPTIO

The LT®1012 is an internally compensated universal
precision operational amplifier which can be used in
practically all precision applications. The LT1012
combines picoampere bias currents (which are
maintained over the full –55°C to 125°C temperature
range), microvolt offset voltage (and low drift with time
and temperature), low voltage and current noise, and
low power dissipation. The LT1012 achieves precision
operation on two Ni-Cad batteries with 1mW of power
dissipation. Extremely high common mode and
power supply rejection ratios, practically unmeasurable
warm-up drift, and the ability to deliver 5mA load current
with a voltage gain of one million round out the LT1012’s
superb precision specifications.

The all around excellence of the LT1012 eliminates the
necessity of the time consuming error analysis procedure
of precision system design in many applications; the
LT1012 can be stocked as the universal internally
compensated precision op amp.

, LTC and LT are registered trademarks of Linear Technology Corporation.

Protected by U. S. patents 4,575,685 and 4,775,884

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TYPICAL APPLICATIO

±250V Common Mode Range Instrumentation Amplifier (AV = 1)

R1
1M

3 4 1

–IN

R2
20k

R3

COMMON

MODE

INPUT
±250V

COMMON MODE REJECTION RATIO = 74dB (RESISTOR LIMITED)
WITH OPTIONAL TRIM = 130dB
OUTPUT OFFSET (TRIMMABLE TO ZERO) = 500µV
OUTPUT OFFSET DRIFT = 10µV/°C
INPUT RESISTANCE = 1M

+IN

1M

7

6

R4

19.608k

5

6V TO 18V

2

–

LT1012

3

+

–6V TO –18V

R5

975k

R6

25k

7

2

6

4

R1 TO R6: VISHAY 444
ACCUTRACT THIN FILM
SIP NETWORK

: VISHAY 444 PIN NUMBERS

X

VISHAY INTERTECHNOLOGY, INC
63 LINCOLN HIGHWAY
MALVERN, PA 19355

LT1012A • TA01

OUT

50k

OPTIONAL
CMRR
TRIM

Typical Distribution of Input

Offset Voltage

200

1140 UNITS
FROM THREE
RUNS

160

120

80

NUMBER OF UNITS

40

0

–40

–20

INPUT OFFSET VOLTAGE (µV)

0

VS = ±15V

= 25°C

T

A

V

CM

20 40

LT1012A • TA02

= 0V

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LT1012A/LT1012

WWWU

ABSOLUTE AXI U RATI GS

(Note 1)

Supply Voltage ......................................................± 20V

Differential Input Current (Note 1) ......................± 10mA

Input Voltage .........................................................± 20V

Output Short Circuit Duration .......................... Indefinite

UU

W

PACKAGE/ORDER I FOR ATIO

V

OS

TRIM

–IN
+IN

–

V

T

JMAX

TOP VIEW

1
2

–

3

+

4

S8 PACKAGE

8-LEAD PLASTIC SO

=

100°C, θJA = 170°C/W

V

OS

8

TRIM

+

7

V

6

OUT
OVER

5

COMP

V

OS

TRIM

1

2

–IN OUT

+IN OVER

H PACKAGE

8-LEAD TO-5 METAL CAN

= 150°C, θJA = 150°C/W, θJC = 45°C/W

T

JMAX

Operating Temperature Range

LT1012AM/LT1012M (OBSOLETE)....– 55°C to 125°C

LT1012I/LT1012AI ............................. – 40°C to 85°C

LT1012AC/LT1012C

LT1012D/LT1012S8 ................................ 0°C to 70°C

Storage Temperature Range ................. – 65°C to 150°C

Lead Temperature (Soldering, 10 sec).................. 300°C

TOP VIEW

V

OS

–

V

TRIM

8

–
+

4

(CASE)

7

53

+

V

6

COMP

V

OS

TRIM

–IN
+IN

V

TOP VIEW

1
2

–

3

–

T

+

4

N8 PACKAGE

8-LEAD PDIP

= 100°C, θJA = 130°C/W

JMAX

8
7
6
5

V

OS

TRIM

+

V
OUT

OVER
COMP

ORDER PART NUMBER

LT1012S8
LT1012IS8
LT1012ACS8
LT1012AIS8

ORDER PART NUMBER

LT1012AMH
LT1012MH
LT1012ACH
LT1012CH
LT1012DH

S8 PART MARKING

1012
1012I
1012A
1012AI

Consult LTC Marketing for parts specified with wider operating temperature ranges.

OBSOLETE PACKAGE

Consider the S8 or N8 Packages for Alternate Source

ORDER PART NUMBER

LT1012ACN8
LT1012AIN8
LT1012CN8
LT1012DN8
LT1012IN8

2

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LT1012A/LT1012

ELECTRICAL CHARACTERISTICS

SYMBOL PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX MIN TYP MAX UNITS

V

OS

I

OS

I

B

e

n

e

n

i

n

A

VOL

CMRR Common Mode Rejection VCM = ±13.5V 114 132 114 132 110 132 dB

PSRR Power SuppIy Rejection Ratio VS = ±1.2V to ±20V 114 132 114 132 110 132 dB

V

OUT

I

S

Input Offset Voltage 8 25 8 35 10 50 µV

(Note 3) 20 90 20 90 25 120 µV

Long Term lnput Offset 0.3 0.3 0.3 µV/month
Voltage Stability

Input Offset Current 15 100 15 100 20 150 pA

(Note 3) 25 150 25 150 30 200 pA

Input Bias Current ±25 ±100 ±25 ±100 ±30 ±150 pA

(Note 3) ±35 ±150 ±35 ±150 ±40 ±200 pA

Input Noise Voltage 0.1Hz to 10Hz 0.5 0.5 0.5 µV
Input Noise Voltage Density fO = 10Hz (Note 4) 17 30 17 30 17 30 nV√Hz

f

= 1000Hz (Note 5) 14 22 14 22 14 22 nV√Hz

O

Input Noise Current Density f
Large Signal Voltage Gain V

Ratio

Input Voltage Range ±13.5 ±14 ±13.5 ±14 ±13.5 ±14 V
Output Voltage Swing RL = 10kΩ±13 ±14 ±13 ±14 ±13 ±14 V
Slew Rate 0.1 0.2 0.1 0.2 0.1 0.2 V/µs
Supply Current 370 500 380 380 µA

10Hz 20 20 20 fA/√Hz

O =

= ±12V, RL ≥ 10kΩ 300 2000 300 2000 200 2000 V/mV

OUT

V

= ±10V, RL ≥ 2kΩ 300 1000 200 1000 200 1000 V/mV

OUT

(Note 3) 380 600 380 600 380 600 µA

VS = ± 15V, VCM = OV, TA = 25°C, unless otherwise noted.

LT1O12AM/AC/AI LT1O12M/I LT1O12C

P-P

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LT1012A/LT1012

ELECTRICAL CHARACTERISTICS

SYMBOL PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX UNITS

V

OS

l

OS

I

B

e

n

e

n

i

n

A

VOL

CMRR Common Mode Rejection Ratio VCM = ±13.5V 110 132 110 132 dB
PSRR Power Supply Rejection Ratio VS = ±1.2V to ± 20V 110 132 110 132 dB

V

OUT

I

S

Input Offset Voltage 12 60 15 120 µV

(Note 3) 25 25 180 µV

Long Term Input Offset 0.3 0.4 µV/month
Voltage Stability

Input Offset Current 20 150 50 280 pA

(Note 3) 30 60 380 pA

Input Bias Current ±30 ± 150 ±80 ±300 pA

(Note 3) ±40 ±120 ±400 pA

Input Noise Voltage 0.1Hz to 10Hz 0.5 0.5 µV
Input Noise Voltage Density fO = 10Hz (Note 5) 17 30 17 30 nV√Hz

f

= 1000Hz (Note 5) 14 22 14 22 nV√Hz

O

lnput Noise Current Density fO = 10Hz 20 20 fA/√Hz
Large-Signal Voltage Gain V

Input Voltage Range ±13.5 ±14.0 ±13.5 ±14.0 V
Output Voltage Swing RL = 10kΩ±13 ±14 ±13 ±14 V
Slew Rate 0.1 0.2 0.1 0.2 V/µs
Supply Current (Note 3) 380 600 380 600 µA

±12V,RL ≥ 10kΩ 200 2000 200 2000 V/mV

OUT =

±10V,RL ≥ 2kΩ 200 1000 120 1000 V/mV

V

OUT =

VS = ± 15V, VCM = 0V, TA = 25°C, unless otherwise noted.

LT1012D LT1012S8

P-P

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LT1012A/LT1012

ELECTRICAL CHARACTERISTICS

The ● denotes the specifications which apply over the full operating

temperature range of –55°C ≤ TA ≤ 125°C for LT1012AM and LT1012M, and –40°C ≤ TA≤ 85°C for LT1012AI and LT1012I.
VS = ± 15V, VCM = 0V, unless otherwise noted.

LT1012AM/AI LT1012M/I

SYMBOL PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX UNITS

V

OS

I

OS

I

B

A

VOL

CMRR Common Mode Rejection Ratio VCM = ±13.5V ● 110 128 108 128 dB
PSRR Power Supply Rejection Ratio VS = ±1.5V to ± 20V ● 110 126 108 126 dB

V

OUT

I

S

Input Offset Voltage ● 30 60 30 180 µV

(Note 3)

Average Temperature Coefficient of ● 0.2 0.6 0.2 1.5 µV/°C
Input Offset Voltage

Input Offset Current ● 30 250 30 250 pA

(Note 3)

Average Temperature Coefficient of ● 0.3 2.5 0.3 2.5 pA/°C
Input Offset Current

Input Bias Current ● ±80 ±600 ±80 ±600 pA

(Note 3)

Average Temperature Coefficient of ● 0.6 6.0 0.6 6.0 pA/°C
Input Bias Current

Large-Signal Voltage Gain V

Input Voltage Range ● ±13.5 ±13.5 V
Output Voltage Swing RL = 10kΩ ● ±13 ±14 ±13 ±14 V
Supply Current ● 400 650 400 800 µA

= ±12V, RL ≥ 10kΩ ● 200 1000 150 1000 V/mV

OUT

= ±10V, RL ≥ 2kΩ ● 200 600 100 600 V/mV

V

OUT

● 40 180 40 250 µV

● 70 350 70 350 pA

● ±150 ±800 ±150 ±800 pA

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LT1012A/LT1012

ELECTRICAL CHARACTERISTICS

The ● denotes the specifications which apply over the full operating

temperature range of 0°C ≤ TA ≤ 70°C. VS = ± 15V, VCM = 0V, unless otherwise noted.

SYMBOL PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX UNITS

V

OS

I

OS

I

B

A

VOL

CMRR Common Mode Rejection Ratio VCM = 13.5V ● 110 130 108 130 dB
PSRR Power Supply Rejection Ratio VS = ±1.3V to ± 20V ● 110 128 108 128 dB

V

OUT

I

S

Input Offset Voltage ● 20 60 20 100 µV

(Note 3)

Average Temperature Coefficient of ● 0.2 0.6 0.2 1.0 µV/°C
Input Offset Voltage

Input Offset Current ● 25 230 35 230 pA

(Note 3)

Average Temperature Coefficient of ● 0.3 2.5 0.3 2.5 pA/°C
Input Offset Current

Input Bias Current ● ± 35 ± 230 ± 35 ± 230 pA

(Note 3)

Average Temperature Coefficient of ● 0.3 2.5 0.3 2.5 pA/°C
Input Bias Current

Large-Signal Voltage Gain V

Input Voltage Range ● ±13.5 ±13.5 V
Output Voltage Swing RL = 10kΩ ● ±13 ±14 ±13 ±14 V
Supply Current ● 400 600 400 800 µA

= ±12V, RL ≥ 10kΩ ● 200 1500 150 1500 V/mV

OUT

= ±10V, RL ≥ 2kΩ ● 200 1000 150 800 V/mV

V

OUT

● 30 160 30 200 µV

● 40 300 45 300 pA

● ± 50 ± 300 ± 50 ± 300 pA

LT1012AC LT1012C

6

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