LT1638

Features: Operates with Inputs Above V+ Rail-to-Rail Input and Output Low Power: 230µA per Amplifier Max Gain Bandwidth Product: 1.2MHz Slew Rate: 0.4V/µs High Output Current: 25mA Min Specified on 3V, 5V and ±15V Supplies Reverse Battery Protection to 18V No Supply Sequencing Problem...

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LT1638 Picture
SeekIC No. : 004400746 Detail

LT1638: Features: Operates with Inputs Above V+ Rail-to-Rail Input and Output Low Power: 230µA per Amplifier Max Gain Bandwidth Product: 1.2MHz Slew Rate: 0.4V/µs High Output Current: 25mA Min ...

floor Price/Ceiling Price

Part Number:
LT1638
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2024/3/28

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Product Details

Description



Features:

Operates with Inputs Above V+
Rail-to-Rail Input and Output
Low Power: 230µA per Amplifier Max
Gain Bandwidth Product: 1.2MHz
Slew Rate: 0.4V/µs
High Output Current: 25mA Min
Specified on 3V, 5V and ±15V Supplies
Reverse Battery Protection to 18V
No Supply Sequencing Problems
High Voltage Gain: 1500V/mV
Single Supply Input Range: 0.4V to 44V
High CMRR: 98dB
No Phase Reversal



Application

Battery- or Solar-Powered SystemsPortable InstrumentationSensor Conditioning
Supply Current Sensing
Battery Monitoring
Micropower Active Filters
4mA to 20mA Transmitters



Pinout

  Connection Diagram


Specifications

Specified Temperature Range (Note 3) .. 40°C to 85°C
Junction Temperature ............................................. 150°C
Storage Temperature Range ..................65°C to 150°C
Lead Temperature (Soldering, 10 sec) .................... 300°C
Total Supply Voltage (V+ to V) .................................. 44V
Input Differential Voltage ............................................. 44V
Input Current ......................................................... ±25mA
Output Short-Circuit Duration (Note 2) .............Continuous
Operating Temperature Range ............... 40°C to 85°C



Description

The LT®1638 is a low power dual rail-to-rail input and outputoperational amplifier available in the standard 8-pin PDIP andSO packages as well as the 8-lead MSOP package. TheLT1639 is a low power quad rail-to-rail input and outputoperational amplifier offered on the standard 14-pin PDIPand surface mount packages.

The LT1638/LT1639 op amps operate on all single andsplit supplies with a total voltage of 2.5V to 44V drawingonly 170µA of quiescent current per amplifier.

Theseamplifiers are reverse battery protected and draw nocurrent for reverse supply up to 18V.

The input range of the LT1638/LT1639 includes bothsupplies, and a unique feature of this device is its capabilityto operate over the top with either or both of its inputsabove V+. The inputs handle 44V, both differential andcommon mode, independent of supply voltage. The inputstage incorporates phase reversal protection to preventfalse outputs from occurring even when the inputs are 22Vbelow the negative supply. Protective resistors areincluded in the input leads so that current does notbecome excessive when the inputs are forced below thenegative supply. The LT1638/LT1639 can drive loads up to25mA and still maintain rail-to-rail capability. The op ampsare unity-gain stable and drive all capacitive loads up to1000pF when optional output compensation is used.




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