LT1819CMS8 Linear Technology, LT1819CMS8 Datasheet

IC OPAMP 9MA 400MHZ DUAL 8MSOP

LT1819CMS8

Manufacturer Part Number
LT1819CMS8
Description
IC OPAMP 9MA 400MHZ DUAL 8MSOP
Manufacturer
Linear Technology
Datasheet

Specifications of LT1819CMS8

Amplifier Type
Voltage Feedback
Number Of Circuits
2
Slew Rate
2500 V/µs
Gain Bandwidth Product
400MHz
Current - Input Bias
2µA
Voltage - Input Offset
200µV
Current - Supply
9mA
Current - Output / Channel
70mA
Voltage - Supply, Single/dual (±)
2.5 V ~ 12.6 V, ±1.25 V ~ 6.3 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
Output Type
-
-3db Bandwidth
-

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
LT1819CMS8
Manufacturer:
LT
Quantity:
10 000
Part Number:
LT1819CMS8
Manufacturer:
LINEAR/凌特
Quantity:
20 000
Part Number:
LT1819CMS8#PBF
Manufacturer:
LINEAR/凌特
Quantity:
20 000
Part Number:
LT1819CMS8#TRPBF
Manufacturer:
LINEAR/凌特
Quantity:
20 000
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APPLICATIONS
TYPICAL APPLICATION
FEATURES
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Single Supply Unity-Gain ADC Driver for Oversampling Applications
2.5VDC
400MHz Gain Bandwidth Product
2500V/μs Slew Rate
–85dBc Distortion at 5MHz
9mA Supply Current Per Amplifi er
6nV/√Hz Input Noise Voltage
Unity-Gain Stable
1.5mV Maximum Input Offset Voltage
8μA Maximum Input Bias Current
800nA Maximum Input Offset Current
40mA Minimum Output Current, V
±3.5V Minimum Input CMR, V
Specifi ed at ±5V, Single 5V Supplies
Operating Temperature Range: –40°C to 85°C
Low Profi le (1mm) TSOT-23 (ThinSOT™) Package
±1VAC
Wideband Amplifi ers
Buffers
Active Filters
Video and RF Amplifi cation
Communication Receivers
Cable Drivers
Data Acquisition Systems
+
LT1818
5V
51.1Ω
18pF
S
2.5V
= ±5V
OUT
A
A
= ±3V
IN
IN
+
(SET FOR 2V
FULL SCALE)
5V
LTC1744
14 BITS
50Msps
18189 TA01
P-P
DESCRIPTION
The LT
slew rate, low noise and distortion operational amplifi ers
with excellent DC performance. The LT1818/LT1819 have
been designed for wider bandwidth and slew rate, much
lower input offset voltage and lower noise and distortion
than devices with comparable supply current. The circuit
topology is a voltage feedback amplifi er with the excellent
slewing characteristics of a current feedback amplifi er.
The output drives a 100Ω load to ±3.8V with ±5V sup-
plies. On a single 5V supply, the output swings from 1V
to 4V with a 100Ω load connected to 2.5V. The amplifi er
is unity-gain stable with a 20pF capacitive load without the
need for a series resistor. Harmonic distortion is –85dBc
up to 5MHz for a 2V
The LT1818/LT1819 are manufactured on Linear Tech-
nology’s advanced low voltage complementary bipolar
process. The LT1818 (single op amp) is available in
TSOT-23 and SO-8 packages; the LT1819 (dual op amp)
is available in MSOP-8 and SO-8 packages.
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear
Technology Corporation. ThinSOT is a trademark of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
Single/Dual Operational
400MHz, 2500V/µs, 9mA
®
1818/LT1819 are single/dual wide bandwidth, high
–100
–110
–10
–20
–30
–40
–50
–60
–70
–80
–90
0
0
FFT of Single Supply ADC Driver
5M
P-P
FREQUENCY (Hz)
10M
output at a gain of 2.
LT1818/LT1819
2
15M
f
f
V
SFDR = 78dB
8192 POINT FFT
NO WINDOWING
OR AVERAGING
IN
S
IN
= 50Msps
= 5.102539MHz
= 300mV
3
20M
Amplifi ers
P-P
18189 TA02
25M
18189fb
1

Related parts for LT1819CMS8

LT1819CMS8 Summary of contents

Page 1

... TSOT-23 and SO-8 packages; the LT1819 (dual op amp) is available in MSOP-8 and SO-8 packages. L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear Technology Corporation. ThinSOT is a trademark of Linear Technology Corporation. All other trademarks are the property of their respective owners. ...

Page 2

... LT1818CS5#TRPBF LT1818IS5#PBF LT1818IS5#TRPBF LT1818CS8#PBF LT1818CS8#TRPBF LT1818IS8#PBF LT1818IS8#TRPBF LT1819CMS8#PBF LT1819CMS8#TRPBF LT1819IMS8#PBF LT1819IMS8#TRPBF LT1819CS8#PBF LT1819CS8#TRPBF LT1819IS8#PBF LT1819IS8#TRPBF Consult LTC Marketing for parts specifi ed with wider operating temperature ranges. *The temperature grade is identifi label on the shipping container. Consult LTC Marketing for information on non-standard lead based fi nish parts. ...

Page 3

ELECTRICAL CHARACTERISTICS temperature range, otherwise specifi cations are at T SYMBOL PARAMETER V Input Offset Voltage OS /ΔT Input Offset Voltage Drift Δ Input Offset Current OS I Input Bias Current B e Input Noise Voltage Density n ...

Page 4

LT1818/LT1819 ELECTRICAL CHARACTERISTICS temperature range, otherwise specifi cations are at T SYMBOL PARAMETER GBW Gain-Bandwidth Product Rise Time, Fall Time Propagation Delay PD OS Overshoot t Settling Time S HD Harmonic Distortion dG Differential ...

Page 5

ELECTRICAL CHARACTERISTICS temperature range, otherwise specifi cations are at T SYMBOL PARAMETER A Large-Signal Voltage Gain VOL Channel Separation V Output Swing (Positive) OUT Output Swing (Negative) I Output Current OUT I Output Short-Circuit Current SC SR Slew Rate FPBW ...

Page 6

LT1818/LT1819 ELECTRICAL CHARACTERISTICS Note 5: With ±5V supplies, slew rate is tested in a closed-loop gain of –1 by measuring the rise time of the output from – with an output step from –3V to 3V. With single ...

Page 7

TYPICAL PERFORMANCE CHARACTERISTICS Open-Loop Gain vs Temperature ± ± 100Ω 500Ω –50 – 100 TEMPERATURE (°C) 18189 ...

Page 8

LT1818/LT1819 TYPICAL PERFORMANCE CHARACTERISTICS Gain vs Frequency 500Ω 100Ω 25°C A – ± 500Ω ...

Page 9

TYPICAL PERFORMANCE CHARACTERISTICS Distortion vs Frequency –60 2ND 100Ω L 3RD 100Ω L –70 –80 2ND 500Ω L –90 3RD 500Ω L –100 –110 ...

Page 10

LT1818/LT1819 APPLICATIONS INFORMATION Layout and Passive Components As with all high speed amplifi ers, the LT1818/LT1819 require some attention to board layout. A ground plane is recommended and trace lengths should be minimized, especially on the negative input lead. Low ...

Page 11

APPLICATIONS INFORMATION Slew Rate The slew rate of the LT1818/LT1819 is proportional to the differential input voltage. Highest slew rates are therefore seen in the lowest gain confi gurations. For example output step with a gain of 10 ...

Page 12

LT1818/LT1819 TYPICAL APPLICATION 10μ Single Supply Differential ADC Driver 5V 18pF + 51.1Ω 1/2 LT1819 – 18pF 536Ω 536Ω – 51.1Ω 1/2 LT1819 4.99k + 18pF 4.99k 0.1μF Results Obtained with the Circuit of Figure 2 ...

Page 13

SIMPLIFIED SCHEMATIC + V –IN – V (One Amplifi er) + LT1818/LT1819 OUT 18189 SS 18189fb 13 ...

Page 14

LT1818/LT1819 PACKAGE DESCRIPTION 5.23 (.206) MIN 0.42 0.038 (.0165 .0015) TYP RECOMMENDED SOLDER PAD LAYOUT 0.254 (.010) GAUGE PLANE 0.18 (.007) NOTE: 1. DIMENSIONS IN MILLIMETER/(INCH) 2. DRAWING NOT TO SCALE 3. DIMENSION DOES NOT INCLUDE MOLD FLASH, PROTRUSIONS OR ...

Page 15

PACKAGE DESCRIPTION 0.62 MAX 3.85 MAX 2.62 REF RECOMMENDED SOLDER PAD LAYOUT PER IPC CALCULATOR 0.20 BSC DATUM ‘A’ 0.30 – 0.50 REF NOTE: 1. DIMENSIONS ARE IN MILLIMETERS 2. DRAWING NOT TO SCALE 3. DIMENSIONS ARE INCLUSIVE OF PLATING ...

Page 16

LT1818/LT1819 PACKAGE DESCRIPTION .050 BSC .245 MIN .030 .005 TYP RECOMMENDED SOLDER PAD LAYOUT .010 – .020 (0.254 – 0.508) .008 – .010 (0.203 – 0.254) (0.406 – 1.270) NOTE: 1. DIMENSIONS IN 2. DRAWING NOT TO SCALE 3. THESE ...

Page 17

... Updated Order Information Section 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. LT1818/LT1819 ...

Page 18

... Low Noise: 3.5nV/√Hz Low Distortion: –90dBc at 5MHz Low Power: 3.6mA Max at ±5V Programmable Supply Current 1.9nV/√Hz Noise, 3mA Max www.linear.com ● V OUT Large-Signal Transient Response 18189 TA07 10ns/DIV LT 0510 REV B • PRINTED IN USA © LINEAR TECHNOLOGY CORPORATION 2002 18189fb ...

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