參數(shù)資料
型號: LT1219
廠商: Linear Technology Corporation
英文描述: Precision Rail-to-Rail Input and Output Op Amps
中文描述: 精密軌到軌輸入和輸出運算放大器
文件頁數(shù): 14/16頁
文件大?。?/td> 375K
代理商: LT1219
14
LT1218/LT1219
APPLICATIO
S I
FOR
ATIO
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 200mV
P-P
50kHz square wave added to the
W
U
U
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 APPLICATIO
N
S
Buffer for 12-Bit A/D Converter
V
REF
+IN
–IN
GND
V
CC
CLK
D
OUT
CS/SHDN
1
2
3
4
8
7
6
5
LTC1285
+
TO
μ
P
1
μ
F
0.1
μ
F
0.1
μ
F
3V
V
IN
LT1219
LT1218/19 TA03
High-Side Current Source
V
CC
+
LT1218
1k
R
0.2
40k
Q1
MTP23P06
I
LOAD
5V < V
CC
< 30V
0A < I
LOAD
< 1A AT V
= 5V
0mA < I
LOAD
< 160mA AT V
CC
= 30V
Q2
2N4340
100
0.0033
μ
F
LT1004-1.2
R
P
10k
LT1218/19 TA04
V
+
(AC)
V
OUT
V
+
(AC)
V
OUT
相關(guān)PDF資料
PDF描述
LT1219L Precision Rail-to-Rail Input and Output Op Amps
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LT1220CN8 45MHz, 250V/us Operational Amplifier
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參數(shù)描述
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LT1219CN8#PBF 功能描述:IC PREC OP-AMP R-R IN/OUT 8-DIP RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:C-Load™ 標準包裝:50 系列:- 放大器類型:J-FET 電路數(shù):2 輸出類型:- 轉(zhuǎn)換速率:13 V/µs 增益帶寬積:3MHz -3db帶寬:- 電流 - 輸入偏壓:65pA 電壓 - 輸入偏移:3000µV 電流 - 電源:1.4mA 電流 - 輸出 / 通道:- 電壓 - 電源,單路/雙路(±):7 V ~ 36 V,±3.5 V ~ 18 V 工作溫度:-40°C ~ 85°C 安裝類型:通孔 封裝/外殼:8-DIP(0.300",7.62mm) 供應商設(shè)備封裝:8-PDIP 包裝:管件
LT1219CS8 功能描述:IC PREC OP-AMP R-R IN/OUT 8-SOIC RoHS:否 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:C-Load™ 標準包裝:50 系列:- 放大器類型:J-FET 電路數(shù):2 輸出類型:- 轉(zhuǎn)換速率:3.5 V/µs 增益帶寬積:1MHz -3db帶寬:- 電流 - 輸入偏壓:30pA 電壓 - 輸入偏移:2000µV 電流 - 電源:200µA 電流 - 輸出 / 通道:- 電壓 - 電源,單路/雙路(±):7 V ~ 36 V,±3.5 V ~ 18 V 工作溫度:0°C ~ 70°C 安裝類型:通孔 封裝/外殼:8-DIP(0.300",7.62mm) 供應商設(shè)備封裝:8-PDIP 包裝:管件