LT1638HS8TR Linear Technology Corporation, LT1638HS8TR Datasheet

LT1638HS8TR

Manufacturer Part Number

LT1638HS8TR

Description

SOP8

Manufacturer

Linear Technology Corporation

Datasheet

1.LT1638CMS8TRPBF.pdf (18 pages)

Specifications of LT1638HS8TR

Date_code

04+

Current page: 1 of 18
Download datasheet (258Kb)

APPLICATIONS

L, LT, LTC, LTM, Over-The-Top, Linear Technology and the Linear logo are registered

trademarks of Linear Technology Corporation. All other trademarks are the property of their

respective owners.

TYPICAL APPLICATION

FEATURES

Operates with Inputs Above V

Rail-to-Rail Input and Output

Low Power: 230μA per Ampliﬁ er Max

Gain Bandwidth Product: 1.2MHz

Slew Rate: 0.4V/μs

High Output Current: 25mA Min

Speciﬁ ed 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

Available in 14-Lead SO, 8-Lead MSOP and DFN

Packages

Battery- or Solar-Powered Systems

Supply Current Sensing

Battery Monitoring

Micropower Active Filters

4mA to 20mA Transmitters

Portable Instrumentation

Sensor Conditioning

10k

100mV Hysteresis Centered at 0mV

–

Over-The-Top

1/2 LT1638

= 5V, V

Comparator with

= 0V TO 44V, t

–

1/2 LT1638

= 27μs

1638/39 TA01

Rail-to-Rail Input and Output

DESCRIPTION

The LT

operational ampliﬁ er available in the standard 8-pin PDIP

and SO packages as well as the 8-lead MSOP package. The

LT1639 is a low power quad rail-to-rail input and output

operational ampliﬁ er offered in the standard 14-pin PDIP

and surface mount packages. For space limited applications

the LT1638 is available in a 3mm x 3mm x 0.8mm dual

ﬁ ne pitch leadless package (DFN).

The LT1638/LT1639 op amps operate on all single and split

supplies with a total voltage of 2.5V to 44V drawing only

170μA of quiescent current per ampliﬁ er. These ampli-

ﬁ ers are reverse battery protected and draw no current

for reverse supply up to 18V.

The input range of the LT1638/LT1639 includes both sup-

plies, and a unique feature of this device is its capability

to operate over the top with either or both of its inputs

above V

common mode, independent of supply voltage. The input

stage incorporates phase reversal protection to prevent

false outputs from occurring when the inputs are below

the negative supply. Protective resistors are included in

the input leads so that current does not become excessive

when the inputs are forced below the negative supply.

The LT1638/LT1639 can drive loads up to 25mA and still

maintain rail-to-rail capability. The op amps are unity-gain

stable and drive all capacitive loads up to 1000pF when

optional output compensation is used.

Over-The-Top Micropower

1638 is a low p wer dual rail-to-rail input and output

. The inputs handle 44V, both differential and

Output Voltage vs Input Voltage

1.2MHz, 0.4V/µs

20mV/DIV

LT1638/LT1639

Op Amps

1638/39 TA02

16389fg

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