参数资料
型号: LT1218LCS8#PBF
厂商: Linear Technology
文件页数: 6/16页
文件大小: 0K
描述: IC PREC OP-AMP R-R IN/OUT 8-SOIC
标准包装: 100
放大器类型: 通用
电路数: 1
输出类型: 满摆幅
转换速率: 0.1 V/µs
增益带宽积: 300kHz
电流 - 输入偏压: 30nA
电压 - 输入偏移: 35µV
电流 - 电源: 400µA
电流 - 输出 / 通道: 12mA
电压 - 电源,单路/双路(±): 2 V ~ 10 V,±1 V ~ 5 V
工作温度: 0°C ~ 70°C
安装类型: 表面贴装
封装/外壳: 8-SOIC(0.154",3.90mm 宽)
供应商设备封装: 8-SO
包装: 管件
14
LT1218/LT1219
APPLICATIONS INFORMATION
WU
U
compensation. The output capacitance forms a filter,
which reduces pickup from the supply and lowers the
output impedance. This additional filtering is helpful in
mixed analog/digital systems with common supplies or
systems employing switching supplies. Filtering also
reduces high frequency noise, which may be beneficial
when driving A/D converters.
Figures 7a and 7b show the outputs of the LT1218/LT1219
perturbed by a 200mVP-P 50kHz square wave added to the
positive supply. The LT1219 power supply rejection is
about ten times greater than that of the LT1218 at 50kHz.
Note the 5-to-1 scale change in the output voltage traces.
The tolerance of the external compensation capacitor is
not critical. The plots of Overshoot vs Load Current in the
Typical Performance Characteristics section illustrate the
effect of a capacitive load.
LT1218/19 F07a
Figure 7a. LT1218 Power Supply Rejection Test
LT1218/19 F07b
Figure 7b. LT1219 Power Supply Rejection Test
TYPICAL APPLICATIONS
U
Buffer for 12-Bit A/D Converter
VREF
+ IN
– IN
GND
VCC
CLK
DOUT
CS/SHDN
1
2
3
4
8
7
6
5
LTC1285
+
TO
P
1
F
0.1
F
0.1
F
3V
VIN
LT1219
LT1218/19 TA03
High-Side Current Source
+
LT1218
1k
RSENSE
0.2
40k
Q1
MTP23P06
ILOAD
5V < VCC < 30V
0A < ILOAD < 1A AT VCC = 5V
0mA < ILOAD < 160mA AT VCC = 30V
Q2
2N4340
VCC
100
0.0033
F
LT1004-1.2
RP
10k
LT1218/19 TA04
V+
(AC)
VOUT
V+
(AC)
VOUT
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LT1219CN8#PBF 功能描述:IC PREC OP-AMP R-R IN/OUT 8-DIP RoHS:是 类别:集成电路 (IC) >> Linear - Amplifiers - Instrumentation 系列:C-Load™ 标准包装:50 系列:- 放大器类型:J-FET 电路数:2 输出类型:- 转换速率:13 V/µs 增益带宽积:3MHz -3db带宽:- 电流 - 输入偏压:65pA 电压 - 输入偏移:3000µV 电流 - 电源:1.4mA 电流 - 输出 / 通道:- 电压 - 电源,单路/双路(±):7 V ~ 36 V,±3.5 V ~ 18 V 工作温度:-40°C ~ 85°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