LT1008CH Linear Technology, LT1008CH Datasheet

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LT1008CH

Manufacturer Part Number
LT1008CH
Description
IC PREC OPAMP UNIVERSAL TO-5-8
Manufacturer
Linear Technology
Datasheet

Specifications of LT1008CH

Amplifier Type
General Purpose
Number Of Circuits
1
Slew Rate
0.2 V/µs
Current - Input Bias
30pA
Voltage - Input Offset
30µV
Current - Supply
380µA
Voltage - Supply, Single/dual (±)
±2 V ~ 18 V
Operating Temperature
0°C ~ 70°C
Mounting Type
Through Hole
Package / Case
TO-5-8
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Output Type
-
Current - Output / Channel
-
-3db Bandwidth
-
Gain Bandwidth Product
-
FEATURES
TYPICAL APPLICATIO
APPLICATIO S
INPUT
Guaranteed Bias Current
Guaranteed Offset Voltage: 120μV Max
Guaranteed Drift: 1.5μV/°C Max
Low Noise, 0.1Hz to 10Hz: 0.5μV
Guaranteed Low Supply Current: 600μA Max
Guaranteed CMRR: 114dB Min
Guaranteed PSRR: 114dB Min
Guaranteed Voltage Gain with 5mA Load Current
Available in 8-Lead PDIP and SO Packages
Precision Instrumentation
Charge Integrators
Wide Dynamic Range Logarithmic Amplifiers
Light Meters
Low Frequency Active Filters
Standard Cell Buffers
Thermocouple Amplifiers
T
T
A
A
= 25°C: 100pA Max
= – 55°C to 125°C: 600pA Max
9M
900k
90k
10k
1V
10V
100V
1000V
0.1V
Input Amplifier for 4.5 Digit Voltmeter
FN507
ALLEN BRADLEY
DECADE VOLTAGE DIVIDER
100k
U
5%
2
3
+
LT1008
1
–15V
1000pF
8
4
15V
U
7
P-P
6
*RATIO MATCH ±0.01%
9k*
1k*
THIS APPLICATION REQUIRES LOW
BIAS CURRENT AND OFFSET VOLTAGE,
LOW NOISE AND LOW DRIFT WITH
TIME AND TEMPERATURE
1V
0.1V
10V
100V
1000V
TO 1V FULL-SCALE
ANALOG-TO-DIGITAL
CONVERTER
DESCRIPTIO
The LT
that can be used in practically all precision applications.
The LT1008 combines for the first time, 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. Extremely high
common mode and power supply rejection ratios, and the
ability to deliver 5mA load current with high voltage gain
round out the LT1008’s superb precision specifications.
The all around excellence of the LT1008 eliminates the
necessity of the time consuming error analysis procedure
of precision system design in many applications; the
LT1008 can be stocked as the universal precision op amp.
The LT1008 is externally compensated with a single ca-
pacitor for additional flexibility in shaping the frequency
response of the amplifier. It plugs into and upgrades all
standard LM108A/LM308A applications. For an internally
compensated version with even lower offset voltage but
otherwise similar performance see the LT1012.
1008 TA01
, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.
®
1008 is a universal precision operational amplifier
Picoamp Input Current,
–100
–150
–50
100
50
0
–50
Input Bias Current vs Temperature
Low Noise Op Amp
U
–25
Microvolt Offset,
UNDERCANCELLED UNIT
OVERCANCELLED UNIT
0
TEMPERATURE (°C)
25
50
75
100
LT1008
1008 TA02
125
1008fb
1

Related parts for LT1008CH

LT1008CH Summary of contents

Page 1

... It plugs into and upgrades all standard LM108A/LM308A applications. For an internally compensated version with even lower offset voltage but otherwise similar performance see the LT1012. , LT, LTC and LTM are registered trademarks of Linear Technology Corporation. 0. 10V ...

Page 2

... T = 45°C/W JMAX JA JC ORDER PART NUMBER LT1008MH LT1008CH OBSOLETE PACKAGES Consider Package for Alternate Source Consult LTC Marketing for parts specified with wider operating temperature ranges. ELECTRICAL CHARACTERISTICS SYMBOL PARAMETER V Input Offset Voltage OS Long-Term Input Offset Voltage Stability ...

Page 3

ELECTRICAL CHARACTERISTICS SYMBOL PARAMETER CMRR Common Mode Rejection Ratio PSRR Power Supply Rejection Ratio Input Voltage Range V Output Voltage Swing OUT Slew Rate I Supply Current S indicates specifications which apply over the full operating temperature range of – ...

Page 4

LT1008 ELECTRICAL CHARACTERISTICS SYMBOL PARAMETER i Input Noise Current Density n A Large-Signal Voltage Gain VOL CMRR Common Mode Rejection Ratio PSRR Power Supply Rejection Ratio Input Voltage Range V Output Voltage Swing OUT Slew Rate I Supply Current S ...

Page 5

FREQUE SATIO CIRCUITS Standard Compensation Circuit R1 R2 –V IN **BANDWIDTH AND SLEW RATE ARE PROPORTIONAL TO 1/C 2 – LT1008 OUT R1C ≥ ...

Page 6

LT1008 W U TYPICAL PERFOR A CE CHARACTERISTICS Supply Current vs Supply Voltage 500 450 400 25°C 125°C 350 –55°C 300 SUPPLY VOLTAGE (±V) 0.1Hz to 10Hz Noise T = 25° ±2V TO ±20V V ...

Page 7

W U TYPICAL PERFOR A CE CHARACTERISTICS Voltage Gain vs Load Resistance 10M = ±15V ±10V V O –55°C 3M 25°C 1M 125°C 300k 100k LOAD RESISTANCE (kΩ) 1008 G15 Large-Signal Transient ...

Page 8

LT1008 U U APPLICATIO S I FOR ATIO Achieving Picoampere/Microvolt Performance In order to realize the picoampere—microvolt level accu- racy of the LT1008, proper care must be exercised. For example, leakage currents in circuitry external to the op amp can ...

Page 9

U U APPLICATIO S I FOR ATIO 10Ω *DEVICE UNDER TEST NOTE: ALL CAPACITOR VALUES ARE FOR NONPOLARIZED CAPACITORS ONLY Frequency Compensation The LT1008 is externally frequency compensated with a single capacitor. The two standard compensation circuits shown earlier are ...

Page 10

LT1008 U U APPLICATIO S I FOR ATIO 30pF 10k 2 – LT1008 10k 3 + INPUT* 8 1000pF *SOURCE RESISTANCE ≤15k FOR STABILITY U TYPICAL APPLICATIO S 10k* 2 – INPUT LT1008 3 + Amplifier for Bridge Transducers + ...

Page 11

U TYPICAL APPLICATIO S Amplifier for Photodiode Sensor – λ LT1008 100pF 1% The LT1008 integrator extends low frequency range. Total dynamic range is 0.01Hz to 10kHz (or ...

Page 12

LT1008 U TYPICAL APPLICATIO S Precision, Fast Settling, Lowpass Filter 2 – 1.5M LT1008 INPUT 1μF 1 1000pF OPTO-MOS* 15V 15V LT311A – 4 –15V 1 100Ω 5 15V *OPTO-MOS SWITCH TYPE ...

Page 13

W W SCHE ATIC DIAGRA COMP1 1 22k 22k Q16 Q13 –INPUT Q10 Q39 +INPUT 3 Q18 Q17 – 4. COMP2 8 1.3k 4.2k Q14 3k Q22 ...

Page 14

LT1008 PACKAGE DESCRIPTIO 0.335 – 0.370 (8.509 – 9.398) DIA 0.305 – 0.335 (7.747 – 8.509) 0.040 (1.016) MAX SEATING PLANE 0.010 – 0.045* (0.254 – 1.143) 0.016 – 0.021** (0.406 – 0.533) * LEAD DIAMETER IS UNCONTROLLED BETWEEN THE ...

Page 15

... MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED .006" (0.15mm) Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen- tation that the interconnection of its circuits as described herein will not infringe on existing patent rights. ...

Page 16

... LT1004C-1.2 549Ω 549Ω 549Ω 549Ω 1008 TA11 COMMENTS Internally Compensated LT1008 Dual LT1012 Single SOT-23 Version of LT1884 Dual/Quad C Stable LOAD Dual/Quad Faster LT1881/LT1882 LT 0607 REV B • PRINTED IN THE USA © LINEAR TECHNOLOGY CORPORATION 1991 1008fb ...

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