LT1638CMS8 Linear Technology, LT1638CMS8 Datasheet

IC OPAMP R-R IN/OUT DUAL 8-MSOP

LT1638CMS8

Manufacturer Part Number
LT1638CMS8
Description
IC OPAMP R-R IN/OUT DUAL 8-MSOP
Manufacturer
Linear Technology
Series
Over-The-Top®r
Datasheet

Specifications of LT1638CMS8

Amplifier Type
General Purpose
Number Of Circuits
2
Output Type
Rail-to-Rail
Slew Rate
0.4 V/µs
Gain Bandwidth Product
1.2MHz
Current - Input Bias
20nA
Voltage - Input Offset
400µV
Current - Supply
205µA
Current - Output / Channel
40mA
Voltage - Supply, Single/dual (±)
2.5 V ~ 44 V, ±1.25 V ~ 22 V
Operating Temperature
0°C ~ 70°C
Mounting Type
Surface Mount
Package / Case
8-MSOP, Micro8™, 8-uMAX, 8-uSOP,
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
-3db Bandwidth
-

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
LT1638CMS8
Manufacturer:
LT
Quantity:
10 000
Part Number:
LT1638CMS8
Manufacturer:
LINEAR/凌特
Quantity:
20 000
Part Number:
LT1638CMS8#PBF
Manufacturer:
LTC
Quantity:
1 640
Part Number:
LT1638CMS8#PBF
Manufacturer:
LINEAR/凌特
Quantity:
20 000
Part Number:
LT1638CMS8#TR
Manufacturer:
LT/凌特
Quantity:
20 000
Part Number:
LT1638CMS8#TRPBF
Manufacturer:
LINEAR
Quantity:
12 212
Part Number:
LT1638CMS8#TRPBF
Manufacturer:
LT/凌特
Quantity:
20 000
Company:
Part Number:
LT1638CMS8#TRPBF
Quantity:
2 500
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APPLICATIONS
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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
V1
V2
10k
10k
100mV Hysteresis Centered at 0mV
Over-The-Top
+
1/2 LT1638
A
1M
V
1M
CC
V
CC
®
= 5V, V
Comparator with
1M
+
V
CC
CM
1M
= 0V TO 44V, t
+
1/2 LT1638
B
V
CC
PD
= 27μs
1638/39 TA01
Rail-to-Rail Input and Output
V0
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
5V
0V
Output Voltage vs Input Voltage
1.2MHz, 0.4V/µs
20mV/DIV
LT1638/LT1639
Op Amps
1638/39 TA02
16389ff
1

Related parts for LT1638CMS8

LT1638CMS8 Summary of contents

Page 1

... Battery Monitoring n Micropower Active Filters n 4mA to 20mA Transmitters 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 ® Over-The-Top Comparator with 100mV Hysteresis Centered at 0mV ...

Page 2

LT1638/LT1639 ABSOLUTE MAXIMUM RATINGS + – Total Supply Voltage ( ................................44V Input Differential Voltage...........................................44V Input Current ........................................................±25mA Output Short-Circuit Duration (Note 2) .........Continuous Operating Temperature Range (Note 3) LT1638C/LT1639C ................................–40°C to 85°C LT1638I/LT1639I ..................................–40°C to 85°C LT1638H/LT1639H ...

Page 3

... ORDER INFORMATION LEAD FREE FINISH TAPE AND REEL LT1638CMS8#PBF LT1638CMS8#TRPBF LT1638IMS8#PBF LT1638IMS8#TRPBF LT1638CDD#PBF LT1638CDD#TRPBF LT1638IDD#PBF LT1638IDD#TRPBF LT1638CN8#PBF LT1638CN8#TRPBF LT1638IN8#PBF LT1638IN8#TRPBF LT1638CS8#PBF LT1638CS8#TRPBF LT1638IS8#PBF LT1638IS8#TRPBF LT1638HS8#PBF LT1638HS8#TRPBF LT1638CN#PBF LT1638CN#TRPBF LT1638IN#PBF LT1638IN#TRPBF LT1638CS#PBF LT1638CS#TRPBF LT1638IS#PBF LT1638IS#TRPBF LT1638HS#PBF LT1638HS#TRPBF Consult LTC Marketing for parts specifi ed with wider operating temperature ranges. *The temperature grade is identifi label on the shipping container. ...

Page 4

LT1638/LT1639 ELECTRICAL CHARACTERISTICS l The denotes the specifi cations which apply over the specifi ed temperature range, otherwise specifi cations are 3V, 0V 5V, 0V half supply, unless otherwise noted. ...

Page 5

ELECTRICAL CHARACTERISTICS The l denotes the specifi cations which apply over the specifi ed temperature range, otherwise specifi cations are 3V, 0V 5V, 0V half supply, unless otherwise noted. (Note ...

Page 6

LT1638/LT1639 ELECTRICAL CHARACTERISTICS range, otherwise specifi cations are SYMBOL PARAMETER I Short-Circuit Current (Note 2) SC PSRR Power Supply Rejection Ratio I Supply Current per Amplifi GBW Gain Bandwidth Product SR Slew Rate The l ...

Page 7

ELECTRICAL CHARACTERISTICS l The denotes the specifi cations which apply over the full operating temperature range of – 40°C ≤ TA ≤ 125°C, otherwise specifi cations are 25° ±15V SYMBOL PARAMETER V ...

Page 8

LT1638/LT1639 TYPICAL PERFORMANCE CHARACTERISTICS Supply Current vs Supply Voltage 300 280 260 T = 125°C A 240 220 T = 25°C A 200 180 T = –55°C A 160 140 120 100 ...

Page 9

TYPICAL PERFORMANCE CHARACTERISTICS Gain and Phase Shift vs Frequency ±2. PHASE GAIN –10 – 100 1000 FREQUENCY (kHz) 1638/39 G12 Gain Bandwidth Product and Phase Margin ...

Page 10

LT1638/LT1639 TYPICAL PERFORMANCE CHARACTERISTICS Settling Time to 0.1% vs Output Step ±15V – –2 – –1 V – ...

Page 11

APPLICATIONS INFORMATION Supply Voltage The positive supply pin of the LT1638/LT1639 should be bypassed with a small capacitor (typically 0.1μF) within an inch of the pin. When driving heavy loads an additional 4.7μF electrolytic capacitor should be used. When using ...

Page 12

LT1638/LT1639 APPLICATIONS INFORMATION nonlinear common mode rejection. If the op amp is operating inverting there is no common mode induced distortion. If the op amp is operating in the PNP input stage (input is not within 0. good, ...

Page 13

TYPICAL APPLICATIONS The application in Figure 3 utilizes the Over-The-Top capabilities of the LT1638. The 0.2Ω resistor senses the load current while the op amp and NPN transistor form a closed loop making the collector current of Q1 proportional to ...

Page 14

LT1638/LT1639 PACKAGE DESCRIPTION 3.5 0.05 1.65 0.05 2.10 0.05 (2 SIDES) 0.25 0.05 0.50 BSC 2.38 0.05 RECOMMENDED SOLDER PAD PITCH AND DIMENSIONS APPLY SOLDER MASK TO AREAS THAT ARE NOT SOLDERED NOTE: 1. DRAWING TO BE MADE A JEDEC ...

Page 15

PACKAGE DESCRIPTION .300 – .325 (7.620 – 8.255) .065 (1.651) .008 – .015 TYP (0.203 – 0.381) +.035 .325 –.015 ( ) +0.889 8.255 –0.381 NOTE: INCHES 1. DIMENSIONS ARE MILLIMETERS *THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS. ...

Page 16

LT1638/LT1639 PACKAGE DESCRIPTION .300 – .325 (7.620 – 8.255) .008 – .015 (0.203 – 0.381) +.035 .325 –.015 ( ) +0.889 8.255 –0.381 NOTE: INCHES 1. DIMENSIONS ARE MILLIMETERS *THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS. MOLD FLASH ...

Page 17

... Units on x-axis of G24 changed from Hz to kHz 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 representa- tion that the interconnection of its circuits as described herein will not infringe on existing patent rights. ...

Page 18

... LOGIC HIGH (5V) = CHARGING LOGIC LOW (0V) = DISCHARGING + D V 1/4 LT1639 OUT – 90.9k 1638/39 F05 5V OS(MAX) OS(MAX) , 500V/ 400kHz GBW OS(MAX) VOL(MIN) Extends 44V above MSOP Package, Shutdown Function CC LT 0910 REV F • PRINTED IN USA © LINEAR TECHNOLOGY CORPORATION 1998 16389ff ...

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