LT1995 반도체 회로 부품 판매점
32MHz - 1000V/us Gain Selectable Amplifier
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 Linear Technology |
FEATURES
■ Internal Gain Setting Resistors
■ 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
■ 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
■ Quiescent Current: 9mA Max
■ Wide Supply Range: ±2.5V to ±15V
■ Available in 10-Lead MSOP and
10-Lead (3mm × 3mm) DFN Packages
U
APPLICATIO S
■ Instrumentation Amplifier
■ Current Sense Amplifier
■ Video Difference Amplifier
■ Automatic Test Equipment
TYPICAL APPLICATIO
High Slew Rate Differential Gain of 1
M1 M2 M4
1k
15V
4k
OUT
–
INPUT
RANGE
–15V TO 15V
+
2k
4k –
4k +
2k LT1995
1k 4k
P1 P2 P4
–15V
REF
1995 TA01a
LT1995www.DataSheet4U.com
32MHz, 1000V/µs
Gain Selectable Amplifier
DESCRIPTIO
The LT®1995 is a high speed, high slew rate, gain select-
able amplifier with excellent DC performance. Gains from
–7 to 8 with a gain accuracy of 0.2% can be achieved using
no external components. The device is particularly well
suited for use as a difference amplifier, where the excellent
resistor matching results in a typical common mode
rejection ratio of 79dB.
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 150Ω load to ±2.5V on ±5V supplies,
making it useful in cable driver applications.
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.
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.
, LTC and LT are registered trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
Large-Signal Transient (G = 1)
1995 TA01b
1995fb
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LT1995
www.DataSheet4U.com
ABSOLUTE MAXIMUM RATINGS (Note 1)
Total Supply Voltage (V+ to V–) .............................. 36V
Input Current (Note 2) ....................................... ±10mA
Output Short-Circuit Duration (Note 3) ........... Indefinite
Operating Temperature Range (Note 4) .. – 40°C to 85°C
Specified Temperature Range (Note 5) ... – 40°C to 85°C
Storage Temperature Range
MS Package .................................... – 65°C to 150°C
DD Package ..................................... – 65°C to 125°C
Maximum Junction Temperature
MS Package ..................................................... 150°C
DD Package ..................................................... 125°C
Lead Temperature (Soldering, 10 sec).................. 300°C
PACKAGE/ORDER INFORMATION
TOP VIEW
P1 1
P2 2
P4 3
VS– 4
REF 5
10 M1
9 M2
+ – 8 M4
7 VS+
6 OUT
DD PACKAGE
10-LEAD (3mm × 3mm) PLASTIC DFN
TJMAX = 125°C, θJA = 160°C/W (NOTE 6)
EXPOSED PAD INTERNALLY CONNECTED TO VS–
PCB CONNECTION OPTIONAL
ORDER PART
NUMBER
LT1995CDD
LT1995IDD
DD PART
MARKING*
LBJF
LBJF
P1 1
P2 2
P4 3
VS– 4
REF 5
TOP VIEW
+–
10 M1
9 M2
8 M4
7 VS+
6 OUT
MS PACKAGE
10-LEAD PLASTIC MSOP
TJMAX = 150°C, θJA = 160°C/W (NOTE 6)
ORDER PART
NUMBER
LT1995CMS
LT1995IMS
MS PART
MARKING*
LTBJD
LTBJD
Order Options Tape and Reel: Add #TR
Lead Free: Add #PBF Lead Free Tape and Reel: Add #TRPBF
Lead Free Part Marking: http://www.linear.com/leadfree/
Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grades are identified by a label on the shipping container.
ELECTRICAL CHARACTERISTICS
Difference Amplifier Configuration. TA = 25°C, VREF = VCM = 0V and unused gain pins are unconnected, unless otherwise noted.
SYMBOL PARAMETER
GE Gain Error
GNL Gain Nonlinearity
VOS Input Offset Voltage
Referred to Input (Note 7)
CONDITIONS
VOUT = ±12V, RL = 1k, G = 1
VOUT = ±12V, RL = 1k, G = 2
VOUT = ±12V, RL = 1k, G = 4
VOUT = ±5V, RL = 150Ω, G = 1
VOUT = ±2.5V, RL = 500Ω, G = 1
VOUT = ±2.5V, RL = 150Ω, G = 1
VOUT = ±12V, RL = 1k, G = 1
G = 1 (MS10)
G = 1 (DD10)
G = 2 (MS10)
G = 2 (DD10)
G = 4 (MS10)
G = 4 (DD10)
G = 1 (MS10)
G = 1 (DD10)
G = 1 (MS10)
G = 1 (DD10)
VSUPPLY
±15V
±15V
±15V
±15V
±5V
±5V
±15V
±15V
±15V
±15V
±15V
±15V
±15V
±5V
±5V
±2.5V
±2.5V
MIN TYP MAX UNITS
0.05 0.2
0.05 0.2
0.05 0.2
0.05 0.25
0.05 0.2
0.05 0.25
%
%
%
%
%
%
10 ppm
15
1.5 9
0.7 4
1.2 6.8
0.6 3.75
0.9 5.6
15
1.4 9
15
1.3 9
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
1995fb
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LT1995 amplifier
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국내 전력반도체 판매점
상호 : 아이지 인터내셔날
전화번호 : 051-319-2877
[ 홈페이지 ]
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