LM108-N Amplifiers Datasheet

LM108-N Datasheet, PDF, Equivalent


Part Number

LM108-N

Description

Operational Amplifiers

Manufacture

etcTI

Total Page 21 Pages
Datasheet
Download LM108-N Datasheet


LM108-N
LM108-N, LM108AQML
www.ti.com
SNOSAH4B – MARCH 2005 – REVISED MARCH 2013
LM108-N/LM108AQML Operational Amplifiers
Check for Samples: LM108-N, LM108AQML
FEATURES
1
2 Maximum Input Bias Current of 3.0 nA Over
Temperature
• Offset Current Less than 400 pA Over
Temperature
• Supply Current of Only 300 μA, even in
Saturation
• Ensured Drift Characteristics
DESCRIPTION
The LM108-N is a precision operational amplifier
having specifications a factor of ten better than FET
amplifiers over a 55°C to +125°C temperature
range.
The devices operate with supply voltages from ±2V to
±20V and have sufficient supply rejection to use
unregulated supplies. Although the circuit is
interchangeable with, and uses the same
compensation as the LM101A, an alternate
compensation scheme can be used to make it
particularly insensitive to power supply noise and to
make supply bypass capacitors unnecessary.
The low current error of the LM108-N makes possible
many designs that are not practical with conventional
amplifiers. In fact, it operates from 10 MΩ source
resistances, introducing less error than devices like
the 709 with 10 kΩ sources. Integrators with drifts
less than 500 μV/sec and analog time delays in
excess of one hour can be made using capacitors no
larger than 1 μF.
Connection Diagrams
*Package is connected to Pin 4 (V)
**Unused pin (no internal connection) to allow for input anti-leakage guard ring on printed circuit board layout.
Figure 1. TO-99 Package
8 Lead CDIP Package
Figure 2. 14 Lead Dual-In-Line Package (Top View)
See Package Number J
1
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.
All trademarks are the property of their respective owners.
2
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2005–2013, Texas Instruments Incorporated

LM108-N
LM108-N, LM108AQML
SNOSAH4B – MARCH 2005 – REVISED MARCH 2013
www.ti.com
Figure 3. 8 Lead CDIP Package (Top View)
See Package Number NAB0008A
Schematic Diagram
Figure 4. 10 Lead CLGA Package
See Package Number NAD0010A, NAC0010A
Compensation Circuits
2 Submit Documentation Feedback
Copyright © 2005–2013, Texas Instruments Incorporated
Product Folder Links: LM108-N LM108AQML


Features LM108-N, LM108AQML www.ti.com SNOSAH4B – MARCH 2005 – REVISED MARCH 2013 LM108-N/LM108AQML Operational Amplifie rs Check for Samples: LM108-N, LM108AQM L FEATURES 1 •2 Maximum Input Bias C urrent of 3.0 nA Over Temperature • O ffset Current Less than 400 pA Over Tem perature • Supply Current of Only 300 μA, even in Saturation • Ensured Dr ift Characteristics DESCRIPTION The LM 108-N is a precision operational amplif ier having specifications a factor of t en better than FET amplifiers over a 55°C to +125°C temperature range. Th e devices operate with supply voltages from ±2V to ±20V and have sufficient supply rejection to use unregulated sup plies. Although the circuit is intercha ngeable with, and uses the same compens ation as the LM101A, an alternate compe nsation scheme can be used to make it p articularly insensitive to power supply noise and to make supply bypass capaci tors unnecessary. The low current error of the LM108-N makes possible many designs that are not practical with convention.
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