LT1498IS8 Linear Technology, LT1498IS8 Datasheet

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LT1498IS8

Manufacturer Part Number
LT1498IS8
Description
IC,Operational Amplifier,DUAL,BIPOLAR,SOP,8PIN,PLASTIC
Manufacturer
Linear Technology
Datasheet

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20 000
APPLICATIONS
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and C-Load
is a trademark of Linear Technology Corporation. All other trademarks are the property of their
respective owners.
TYPICAL APPLICATION
FEATURES
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n
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Rail-to-Rail Input and Output
475μV Max V
Gain-Bandwidth Product: 10MHz
Slew Rate: 6V/μs
Low Supply Current per Amplifi er: 1.7mA
Input Offset Current: 65nA Max
Input Bias Current: 650nA Max
Open-Loop Gain: 1000V/mV Min
Low Input Noise Voltage: 12nV/√Hz Typ
Wide Supply Range: 2.2V to ±15V
Large Output Drive Current: 30mA
Stable for Capacitive Loads Up to 10,000pF
Dual in 8-Pin PDIP and SO Package
Quad in Narrow 14-Pin SO
Driving A-to-D Converters
Active Filters
Rail-to-Rail Buffer Amplifi ers
Low Voltage Signal Processing
Battery-Powered Systems
V
V
+
IN
/2
6.81k
6.81k
11.3k
330pF
Single Supply 100kHz 4th Order Butterworth Filter
OS
from V
100pF
+
1/2 LT1498
+
to V
5.23k
5.23k
10.2k
1000pF
47pF
+
1/2 LT1498
V
Rail-to-Rail Input and Output
+
1498 TA01
Precision C-Load Op Amps
DESCRIPTION
The LT
output precision C-Load™ op amps with a 10MHz gain-
bandwidth product and a 6V/μs slew rate.
The LT1498/LT1499 are designed to maximize input
dynamic range by delivering precision performance over
the full supply voltage. Using a patented technique, both
input stages of the LT1498/LT1499 are trimmed, one at
the negative supply and the other at the positive supply.
The resulting guaranteed common mode rejection is much
better than other rail-to-rail input op amps. When used as
a unity-gain buffer in front of single supply 12-bit A-to-D
converters, the LT1498/LT1499 are guaranteed to add less
than 1LSB of error even in single 3V supply systems.
With 110dB of supply rejection, the LT1498/LT1499 main-
tain their performance over a supply range of 2.2V to 36V
and are specifi ed for 3V, 5V and ±15V supplies. The inputs
can be driven beyond the supplies without damage or phase
reversal of the output. These op amps remain stable while
driving capacitive loads up to 10,000pF .
The LT1498 is available with the standard dual op amp
confi guration in 8-pin PDIP and SO packaging. The LT1499
features the standard quad op amp confi guration and is
available in a 14-pin plastic SO package. These devices
can be used as plug-in replacements for many standard
op amps to improve input/output range and precision.
10MHz, 6V/µs, Dual/Quad
V
®
OUT
1498/LT1499 are dual/quad, rail-to-rail input and
–100
–110
–10
–20
–30
–40
–50
–60
–70
–80
–90
10
0
100
Frequency Response
1k
LT1498/LT1499
FREQUENCY (Hz)
10k
100k
V
V
IN
+
= 3V
= 2.7V
1M
1498 TA02
P-P
10M
14989fe
1

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LT1498IS8 Summary of contents

Page 1

... Low Voltage Signal Processing n Battery-Powered Systems L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and C-Load is a trademark of Linear Technology Corporation. All other trademarks are the property of their respective owners. TYPICAL APPLICATION Single Supply 100kHz 4th Order Butterworth Filter 6 ...

Page 2

... TAPE AND REEL LT1498CN8 LT1498CN8#TR LT1498CS8 LT1498CS8#TR LT1498IN8 LT1498IN8#TR LT1498IS8 LT1498IS8#TR LT1498MPS8 LT1498MPS8#TR LT1499CS LT1499CS#TR LT1499IS LT1499IS#TR Consult LTC Marketing for parts specifi ed with wider operating temperature ranges. *The temperature grade is identifi label on the shipping container. For more information on lead free part marking, go to: For more information on tape and reel specifi ...

Page 3

ELECTRICAL CHARACTERISTICS otherwise noted. SYMBOL PARAMETER V Input Offset Voltage OS ΔV Input Offset Voltage Shift OS Input Offset Voltage Match (Channel-to-Channel) I Input Bias Current B ΔI Input Bias Current Shift B Input Bias Current Match (Channel-to-Channel) I Input ...

Page 4

LT1498/LT1499 ELECTRICAL CHARACTERISTICS 0°C < T < 70° 5V, 0V 3V, 0V SYMBOL PARAMETER I Input Bias Current B ΔI Input Bias Current Shift B Input Bias Current Match (Channel-to-Channel) I Input ...

Page 5

ELECTRICAL CHARACTERISTICS –40°C < T < 85° 5V, 0V 3V, 0V SYMBOL PARAMETER A Large-Signal Voltage Gain VOL CMRR Common Mode Rejection Ratio CMRR Match (Channel-to-Channel) (Note 5) PSRR Power Supply Rejection ...

Page 6

LT1498/LT1499 ELECTRICAL CHARACTERISTICS –55°C < T < 125° 5V, 0V 3V, 0V SYMBOL PARAMETER V Output Voltage Swing (Low) (Note Output Voltage Swing (High) (Note Short-Circuit ...

Page 7

ELECTRICAL CHARACTERISTICS I Short-Circuit Current SC I Supply Current per Amplifi GBW Gain-Bandwidth Product (Note 7) SR Slew Rate The l denotes the specifi cations which apply over the temperature range 0°C < T otherwise noted. SYMBOL PARAMETER ...

Page 8

LT1498/LT1499 ELECTRICAL CHARACTERISTICS –40°C < T < 85° ±15V 0V SYMBOL PARAMETER V Input Offset Voltage Input Offset Voltage Drift (Note 3) OS ΔV Input Offset Voltage Shift OS ...

Page 9

ELECTRICAL CHARACTERISTICS –55°C < T < 125° ±15V 0V SYMBOL PARAMETER V Input Offset Voltage Input Offset Voltage Drift (Note 3) OS ΔV Input Offset Voltage Shift OS Input ...

Page 10

LT1498/LT1499 TYPICAL PERFORMANCE CHARACTERISTICS V Distribution (PNP Stage) 25 LT1498: N8, S8 PACKAGES LT1499: S14 PACKAGE –500 –300 –100 100 300 ...

Page 11

TYPICAL PERFORMANCE CHARACTERISTICS Minimum Supply Voltage 300 250 200 150 100 T = 85° 70° NONFUNCTIONAL –55° 25° TOTAL SUPPLY VOLTAGE (V) 14989 G10 ...

Page 12

LT1498/LT1499 TYPICAL PERFORMANCE CHARACTERISTICS Capacitive Load Handling 5V 100 1000 10000 100000 CAPACITIVE LOAD (pF) 14989 G19 Open-Loop Gain ...

Page 13

TYPICAL PERFORMANCE CHARACTERISTICS 5V Small-Signal Response 200ns/DIV 20mV AT 50kHz IN P ±15V Small-Signal Response V = 15V 200ns/DIV ...

Page 14

LT1498/LT1499 APPLICATIONS INFORMATION + – – V Input Offset Voltage The offset voltage changes depending upon which input stage is active. The input offsets are random, but are trimmed ...

Page 15

APPLICATIONS INFORMATION without oscillation at unity gain. When driving a heavy capacitive load, the bandwidth is reduced to maintain stability. Figures 2a and 2b illustrate the stability of the device for small-signal and large-signal conditions with capacitive loads. Both the ...

Page 16

LT1498/LT1499 TYPICAL APPLICATION PACKAGE DESCRIPTION .300 – .325 (7.620 – 8.255) .008 – .015 (0.203 – 0.381) +.035 .325 –.015 ( ) +0.889 8.255 –0.381 NOTE: 1. DIMENSIONS ARE MILLIMETERS *THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS. MOLD ...

Page 17

... MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED .006" (0.15mm) 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

LT1498/LT1499 PACKAGE DESCRIPTION .050 BSC N .245 MIN .030 ±.005 TYP RECOMMENDED SOLDER PAD LAYOUT .010 – .020 × 45° (0.254 – 0.508) .008 – .010 (0.203 – 0.254) .016 – .050 (0.406 – 1.270) NOTE: INCHES ...

Page 19

REVISION HISTORY (Revision history begins at Rev E) REV DATE DESCRIPTION E 10/09 Edit in Absolute Maximum Ratings LT1498/LT1499 PAGE NUMBER 2 14989fe 19 ...

Page 20

... Drift, 1MHz GBW, 1V/μs OS(MAX) , 6μV/°C Max OS(MAX) , 6μV/°C Max OS(MAX) , Max Supply OS(MAX) , 400kHz GBW, 0.13V/μs Slew Rate, Max Supply – Independent of V < 50μV, I < 400pA 1009 REV E • PRINTED IN USA © LINEAR TECHNOLOGY CORPORATION 2009 . This A + 14989fe ...

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