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參數(shù)資料
| 型號： | LT1815IS6 |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 運(yùn)動(dòng)控制電子 |
| 英文描述： | Single/Dual/Quad 220MHz, 1500V/us Operational Amplifiers with Programmable Supply Current |
| 中文描述： | OP-AMP, 3000 uV OFFSET-MAX, 220 MHz BAND WIDTH, PDSO6 |
| 封裝： | PLASTIC, SOT-23, 6 PIN |
| 文件頁數(shù)： | 13/20頁 |
| 文件大?。?/td> | 366K |
| 代理商： | LT1815IS6 |
13
LT1815
LT1816/LT1817
181567fa
APPLICATIOU
W
U
U
I
SET
V
–
181567 F01
V
+
R
SET
–5V
5V
–
+
LT1815S6
Figure 1. Programming Resistor Between I
SET
and V
–
R
SET
PROGRAMING RESISTOR (
)
50
G
100
150
200
250
10
1k
10k
40k
181567 F02
0
100
V
S
=
±
5V
T
A
= 25
°
C
R
L
= 500
R
L
= 100
Figure 2. Gain Bandwidth Product vs R
SET
Programming Resistor
R
SET
PROGRAMMING RESISTOR (
)
2
S
4
6
7
10
1k
10k
40k
181567 F03
0
100
5
3
1
V
S
=
±
5V
T
= 25
°
C
PER AMPLIFIER
Figure 3. Supply Current vs R
SET
Programming Resistor
Power Dissipation
The LT1815/LT1816/LT1817 combine high speed and
large output drive in small packages. It is possible to
exceed the maximum junction temperature specification
(150
°
C) under certain conditions. Maximum junction tem-
perature (T
J
) is calculated from the ambient temperature
(T
A
), power dissipation per amplifier (P
D
) and number of
amplifiers (n) as follows:
T
J
= T
A
+ (n P
D
θ
JA
)
Power dissipation is composed of two parts. The first is
due to the quiescent supply current and the second is due
to on-chip dissipation caused by the load current. The worst-
case load induced power occurs when the output voltage
is at 1/2 of either supply voltage (or the maximum swing
if less than 1/2 the supply voltage). Therefore P
DMAX
is:
P
DMAX
= (V
+
– V
–
) (I
SMAX
) + (V
+
/2)
2
/R
L
or
P
DMAX
= (V
+
– V
–
) (I
SMAX
) + (V
+
– V
OMAX
)
(V
OMAX
/R
L
)
Example: LT1816IS8 at 85
°
C, V
S
=
±
5V, R
L
=100
P
DMAX
= (10V) (11.5mA) + (2.5V)
2
/100
= 178mW
T
JMAX
= 85
°
C + (2 178mW) (150
°
C/W) = 138
°
C
Circuit Operation
The LT1815/LT1816/LT1817 circuit topology is a true
voltage feedback amplifier that has the slewing behavior of
a current feedback amplifier. The operation of the circuit
can be understood by referring to the Simplified Sche-
matic. Complementary NPN and PNP emitter followers
buffer the inputs and drive an internal resistor. The input
voltage appears across the resistor, generating current
that is mirrored into the high impedance node.
Complementary followers form an output stage that buff-
ers the gain node from the load. The input resistor, input
stage transconductance and the capacitor on the high
impedance node determine the bandwidth. The slew rate
is determined by the current available to charge the gain
node capacitance. This current is the differential input
voltage divided by R1, so the slew rate is proportional to
the input step. Highest slew rates are therefore seen in the
lowest gain configurations.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LT1816IDD | CONNECTOR ACCESSORY |
| LT1817CGN | Single/Dual/Quad 220MHz, 1500V/us Operational Amplifiers with Programmable Supply Current |
| LT1817IGN | Single/Dual/Quad 220MHz, 1500V/us Operational Amplifiers with Programmable Supply Current |
| LT1815 | 6.5mA, 220MHz, 1500V/μs,Low Power,Operational Amplifier with Programmable Current(6.5mA, 220MHz, 1500V/μs 低功耗,單路電流可編程運(yùn)算放大器) |
| LT1819 | 1.3GHz Low Noise, Low Distortion Differential ADC Driver for 140MHz IF |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LT1815IS6#PBF | 制造商:Linear Technology 功能描述:OP Amp Single Volt Fdbk ±6.3V/12.6V 6-Pin TSOT-23 |
| LT1815IS6#TR | 功能描述:IC OPAMP HI-SPEED SNGL SOT23-6 RoHS:否 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標(biāo)準(zhǔn)包裝:2,500 系列:- 放大器類型:通用 電路數(shù):1 輸出類型:滿擺幅 轉(zhuǎn)換速率:0.11 V/µs 增益帶寬積:350kHz -3db帶寬:- 電流 - 輸入偏壓:4nA 電壓 - 輸入偏移:20µV 電流 - 電源:260µA 電流 - 輸出 / 通道:20mA 電壓 - 電源，單路/雙路(±):2.7 V ~ 36 V，±1.35 V ~ 18 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:8-SOIC（0.154"，3.90mm 寬） 供應(yīng)商設(shè)備封裝:8-SO 包裝:帶卷 (TR) |
| LT1815IS6#TRM | 功能描述:IC OPAMP HI-SPEED SNGL SOT23-6 RoHS:否 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標(biāo)準(zhǔn)包裝:2,500 系列:- 放大器類型:通用 電路數(shù):1 輸出類型:滿擺幅 轉(zhuǎn)換速率:0.11 V/µs 增益帶寬積:350kHz -3db帶寬:- 電流 - 輸入偏壓:4nA 電壓 - 輸入偏移:20µV 電流 - 電源:260µA 電流 - 輸出 / 通道:20mA 電壓 - 電源，單路/雙路(±):2.7 V ~ 36 V，±1.35 V ~ 18 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:8-SOIC（0.154"，3.90mm 寬） 供應(yīng)商設(shè)備封裝:8-SO 包裝:帶卷 (TR) |
| LT1815IS6#TRMPBF | 功能描述:IC OPAMP HI-SPEED SNGL SOT23-6 RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標(biāo)準(zhǔn)包裝:2,500 系列:- 放大器類型:通用 電路數(shù):1 輸出類型:滿擺幅 轉(zhuǎn)換速率:0.11 V/µs 增益帶寬積:350kHz -3db帶寬:- 電流 - 輸入偏壓:4nA 電壓 - 輸入偏移:20µV 電流 - 電源:260µA 電流 - 輸出 / 通道:20mA 電壓 - 電源，單路/雙路(±):2.7 V ~ 36 V，±1.35 V ~ 18 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:8-SOIC（0.154"，3.90mm 寬） 供應(yīng)商設(shè)備封裝:8-SO 包裝:帶卷 (TR) |
| LT1815IS6#TRPBF | 功能描述:IC OPAMP HI-SPEED SNGL SOT23-6 RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標(biāo)準(zhǔn)包裝:1,000 系列:- 放大器類型:電壓反饋 電路數(shù):4 輸出類型:滿擺幅 轉(zhuǎn)換速率:33 V/µs 增益帶寬積:20MHz -3db帶寬:30MHz 電流 - 輸入偏壓:2nA 電壓 - 輸入偏移:3000µV 電流 - 電源:2.5mA 電流 - 輸出 / 通道:30mA 電壓 - 電源，單路/雙路(±):4.5 V ~ 16.5 V，±2.25 V ~ 8.25 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:14-SOIC（0.154"，3.90mm 寬） 供應(yīng)商設(shè)備封裝:14-SOIC 包裝:帶卷 (TR) |
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