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| 型号： | LT1077CN8#PBF |
| 厂商： | Linear Technology |
| 文件页数： | 2/16页 |
| 文件大小： | 0K |
| 描述： | IC PREC OP-AMP MICRPWR SNGL 8DIP |
| 标准包装： | 50 |
| 放大器类型： | 通用 |
| 电路数： | 1 |
| 转换速率： | 0.12 V/µs |
| 增益带宽积： | 230kHz |
| 电流 - 输入偏压： | 7nA |
| 电压 - 输入偏移： | 25µV |
| 电流 - 电源： | 56µA |
| 电压 - 电源，单路/双路(±)： | 2.2 V ~ 30 V，±1.1 V ~ 15 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 |
| 产品目录页面： | 1317 (CN2011-ZH PDF) |
10
LT1077
1077fa
APPLICATIO S I FOR ATIO
WU
UU
resistors.) When the output is high the pull-down resistor
draws 80A which dominates the micropower current
budget. This situation is much worse in the gain of one
circuit with V–=0V. At 100V common mode, the output has
to sink 2A. At a minimum output voltage of 20mV
competing devices require a 10k pull-down resistor. As
the output now swings to 10V, this resistor draws 1mA of
current.
Since the output of the LT1077 cannot go exactly to
ground, but can only approach ground to within a few
millivolts, care should be exercised to ensure that the
output is not saturated. For example, a 1mV input signal
will cause the amplifier to set up in its linear region in the
gain 100 configuration shown below; however, it is not
enough to make the amplifier function properly in the
voltage follower mode.
Voltage Follower with Input Exceeding the Negative Common Mode Range (VS = 5V, 0V)
Single supply operation can also create difficulties at the
input. The driving signal can fall below 0V—inadvertently
or on a transient basis. If the input is more than a few
hundred millivolts below ground, two distinct problems
can occur on previous single supply designs, such as the
LM124, LM158, OP-20, OP-21, OP-220, OP-221, OP-420
(a and b), OP-90/290/490 (b only):
a) When the input is more than a diode drop below
ground, unlimited current will flow from the substrate
(V – terminal) to the input (this can destroy the unit). On the
LT1077, resistors in series with the input protect the
device even when the input is 5V below ground.
b) When the input is more than 400mV below ground
(at 25°C), the input stage saturates and phase reversal
occurs at the output (this can cause lock-up in servo
systems). Due to a unique phase reversal protection
circuitry, the LT1077’s output does not reverse, as
illustrated below, even when the input is at – 1.0V.
100mV
1mV
99R
5V
R
+
–
OUTPUT
SATURATED
≈ 3.5mV
1mV
5V
+
–
LT1077 AI01
Gain 100 Amplifier
Voltage Follower
1ms/DIV
2V
1ms/DIV
2V
4V
0
LT1077
NO PHASE REVERSAL
OP-90
EXHIBITS OUTPUT
PHASE REVERSAL
1ms/DIV
6VP-P INPUT
–1.0 TO 5.0V
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LT1077IN8 | 功能描述:IC PREC OP-AMP MICRPWR SNGL 8DIP RoHS:否 类别:集成电路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 标准包装:50 系列:LinCMOS™ 放大器类型:通用 电路数:4 输出类型:- 转换速率:0.05 V/µs 增益带宽积:110kHz -3db带宽:- 电流 - 输入偏压:0.7pA 电压 - 输入偏移:210µV 电流 - 电源:57µA 电流 - 输出 / 通道:30mA 电压 - 电源，单路/双路(±):3 V ~ 16 V，±1.5 V ~ 8 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:14-SOIC（0.154"，3.90mm 宽） 供应商设备封装:14-SOIC 包装:管件 产品目录页面:865 (CN2011-ZH PDF) 其它名称:296-1834296-1834-5 |
| LT1077IN8#PBF | 功能描述:IC PREC OP-AMP MICRPWR SNGL 8DIP RoHS:是 类别:集成电路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 标准包装:2,500 系列:- 放大器类型:通用 电路数:4 输出类型:- 转换速率:0.6 V/µs 增益带宽积:1MHz -3db带宽:- 电流 - 输入偏压:45nA 电压 - 输入偏移:2000µV 电流 - 电源:1.4mA 电流 - 输出 / 通道:40mA 电压 - 电源，单路/双路(±):3 V ~ 32 V，±1.5 V ~ 16 V 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:14-TSSOP（0.173"，4.40mm 宽） 供应商设备封装:14-TSSOP 包装:带卷 (TR) 其它名称:LM324ADTBR2G-NDLM324ADTBR2GOSTR |
| LT1077IN8#PBF | 制造商:Linear Technology 功能描述:IC OP-AMP SINGLE 230KHZ 0. 制造商:Linear Technology 功能描述:IC, OP-AMP, SINGLE, 230KHZ, 0.08V/s, 40 |
| LT1077IN8PBF | 制造商:Linear Technology 功能描述:Op Amp General Purpose +/-22V/44V PDIP8 |
| LT1077IS8 | 功能描述:IC PREC OP-AMP MCRPWR SNGL 8SOIC RoHS:否 类别:集成电路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 标准包装:50 系列:LinCMOS™ 放大器类型:通用 电路数:4 输出类型:- 转换速率:0.05 V/µs 增益带宽积:110kHz -3db带宽:- 电流 - 输入偏压:0.7pA 电压 - 输入偏移:210µV 电流 - 电源:57µA 电流 - 输出 / 通道:30mA 电压 - 电源，单路/双路(±):3 V ~ 16 V，±1.5 V ~ 8 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:14-SOIC（0.154"，3.90mm 宽） 供应商设备封装:14-SOIC 包装:管件 产品目录页面:865 (CN2011-ZH PDF) 其它名称:296-1834296-1834-5 |
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