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LT1995

更新时间: 2024-11-29 05:43:27
品牌 Logo 应用领域
凌特 - Linear 放大器
页数 文件大小 规格书
20页 353K
描述
32MHz, 1000V/μs Gain Selectable Amplifier

LT1995 数据手册

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LT1995  
32MHz, 1000V/µs  
Gain Selectable Amplifier  
U
FEATURES  
DESCRIPTIO  
Internal Gain Setting Resistors  
The LT®1995 is a high speed, high slew rate, gain select-  
able amplifier with excellent DC performance. Gains from  
7to8withagainaccuracyof0.2%canbeachievedusing  
no external components. The device is particularly well  
suitedforuseasadifferenceamplifier, wheretheexcellent  
resistor matching results in a typical common mode  
rejection ratio of 79dB.  
Pin Configurable as a Difference Amplifier,  
Inverting and Noninverting Amplifier  
Difference Amplifier:  
Gain Range 1 to 7  
CMRR > 65dB  
Noninverting Amplifier:  
Gain Range 1 to 8  
The amplifier is a single gain stage design similar to the  
LT1363 and features superb slewing and settling charac-  
teristics. Input offset of the internal operational amplifier  
is less than 2.5mV and the slew rate is 1000V/µs. The  
output can drive a 150load to ±2.5V on ±5V supplies,  
making it useful in cable driver applications.  
Inverting Amplifier:  
Gain Range –1 to –7  
Gain Error: <0.2%  
Slew Rate: 1000V/µs  
Bandwidth: 32MHz (Gain = 1)  
Op Amp Input Offset Voltage: 2.5mV Max  
The resistors have excellent matching, 0.2% maximum at  
room temperature and 0.3% from –40°C to 85°C. The  
temperature coefficient of the resistors is typically  
–30ppm/°C. The resistors are extremely linear with volt-  
age, resulting in a gain nonlinearity of 10ppm.  
Quiescent Current: 9mA Max  
Wide Supply Range: ±2.5V to ±15V  
Available in 10-Lead MSOP and  
10-Lead (3mm × 3mm) DFN Packages  
U
The LT1995 is fully specified at ±2.5V, ±5V and ±15V sup-  
plies and from –40°C to 85°C. The device is available in  
space saving 10-lead MSOP and 10-Lead (3mm × 3mm)  
DFN packages. For a micropower precision amplifier with  
precision resistors, see the LT1991 and LT1996.  
APPLICATIO S  
Instrumentation Amplifier  
Current Sense Amplifier  
Video Difference Amplifier  
Automatic Test Equipment  
, LTC and LT are registered trademarks of Linear Technology Corporation.  
All other trademarks are the property of their respective owners.  
U
TYPICAL APPLICATIO  
High Slew Rate Differential Gain of 1  
Large-Signal Transient (G = 1)  
M1 M2 M4  
15V  
OUT  
1k  
2k  
4k  
4k  
+
INPUT  
RANGE  
4k  
2k  
1k  
–15V TO 15V  
+
LT1995  
4k  
1995 TA01b  
REF  
P1 P2 P4  
–15V  
1995 TA01a  
1995fb  
1

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