参数资料
型号: LT1055CN8
厂商: Linear Technology
文件页数: 3/16页
文件大小: 0K
描述: IC PREC OP-AMP JFET HI-SPD 8-DIP
标准包装: 50
放大器类型: J-FET
电路数: 1
转换速率: 12 V/µs
增益带宽积: 4.5MHz
电流 - 输入偏压: 30pA
电压 - 输入偏移: 120µV
电流 - 电源: 2.8mA
电压 - 电源,单路/双路(±): ±5 V ~ 18 V
工作温度: 0°C ~ 70°C
安装类型: 通孔
封装/外壳: 8-DIP(0.300",7.62mm)
供应商设备封装: 8-PDIP
包装: 管件
11
LT1055/LT1056
10556fc
APPLICATIONS INFORMATION
WU
U
Phase Reversal Protection
Most industry standard JFET input op amps (e.g., LF155/
LF156, LF351, LF411, OP15/16) exhibit phase reversal at
the output when the negitive common mode limit at the
input is exceeded (i.e., from –12V to –15V with
±15V
supplies). This can cause lock-up in servo systems. As
shown below, the LT1055/LT1056 does not have this
problem due to unique phase reversal protection circuitry
(Q1 on simplified schematic).
0.5ms/DIV
10V/DIV
LT1055/56 AI06
LT1055/56 AI07
LT1055/56 AI08
TYPICAL APPLICATIONS
U
Exponential Voltage-to-Frequency Converter for Music Synthesizers
INPUT
0V TO 10V
LT1055/56 TA03
+
11.3k*
EXPONENT
TRIM
2500
*
562
*
3.57k*
ZERO TRIM
15V
500k
500
*
4.7k
1.1k
10k*
3k
10k*
1k*
4.7k
2
3
4
5
6
–15V
7
LT1055
15V
500pF
POLYSTYRENE
6
2
3
15V
7
LM301A
15V
6
8
2N3906
2N3904
SAWTOOTH
OUTPUT
LM329
0.01
F
1
4
2
3
1
1N148
13
14
15 2.2k
9
7
8
33
TEMPERATURE CONTROL LOOP
SCALE FACTOR
1V IN OCTAVE OUT
*1% METAL FILM RESISTOR
PIN NUMBERED TRANSISTORS = CA3096 ARRAY
+
For ten additional applications utilizing the
LT1055 and LT1056, please see the LTC1043
data sheet and Application Note 3.
Voltage Follower with Input Exceeding the Negative
Common Mode Range
+
2k
–15V
15V
OUTPUT
2
3
4
INPUT
±15V
SINE WAVE
7
6
LT1055/56
LT1055/56 AI05
Output
LT1055/LT1056
Output
(LF155/LF56, LF441, OP-15/OP-16)
Input
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参数描述
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