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參數(shù)資料
| 型號(hào)： | LT1210CR |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 運(yùn)動(dòng)控制電子 |
| 英文描述： | 1.1A, 35MHz Current Feedback Amplifier |
| 中文描述： | OP-AMP, 20000 uV OFFSET-MAX, 35 MHz BAND WIDTH, PSSO7 |
| 封裝： | PLASTIC, D2PAK-7 |
| 文件頁數(shù)： | 9/16頁 |
| 文件大?。?/td> | 358K |
| 代理商： | LT1210CR |
9
LT1210
U
S
A
O
PPLICATI
IU
U
Figure 2. Shutdown Interface
–
+
LT1210
SD
15V
–15V
R
F
R
G
V
IN
5V
24k
ENABLE
V
OUT
1210 F02
15V
74C906
up the turn-off time and ensures that the LT1210 is
completely turned off. Because the pin is referenced to
the positive supply, the logic used should have a break-
down voltage of greater than the positive supply voltage.
No other circuitry is necessary as the internal circuit
limits the Shutdown pin current to about 500
μ
A. Figure
3 shows the resulting waveforms.
Figure 3. Shutdown Operation
A
V
= 1
R
F
= 825
R
L
= 50
R
PULL-UP
= 24k
V
IN
P-P
V
S
=
±
15V
V
O
E
1210 F03
For applications where the full bandwidth of the amplifier
is not required, the quiescent current of the device may be
reduced by connecting a resistor from the Shutdown pin
to ground. The quiescent current will be approximately 65
times the current in the Shutdown pin. The voltage across
the resistor in this condition is V
+
– 3V
BE
. For example, a
82k resistor will set the quiescent supply current to 9mA
with V
S
=
±
15V.
The photos in Figures 4a and 4b show the effect of
reducing the quiescent supply current on the large-signal
response. The quiescent current can be reduced to 9mA in
the inverting configuration without much change in re-
sponse. In noninverting mode, however, the slew rate is
reduced as the quiescent current is reduced.
1210 F04a
R
F
= 750
R
L
= 10
I
Q
= 9mA, 18mA, 36mA
V
S
=
±
15V
Figure 4b. Large-Signal Response vs I
Q
, A
V
= 2
R
F
= 750
R
L
= 10
Figure 4a. Large-Signal Response vs I
Q
, A
V
= –1
1210 F04b
I
Q
= 9mA, 18mA, 36mA
V
S
=
±
15V
Slew Rate
Unlike a traditional op amp, the slew rate of a current
feedback amplifier is not independent of the amplifier gain
configuration. There are slew rate limitations in both the
input stage and the output stage. In the inverting mode,
and for higher gains in the noninverting mode, the signal
amplitude on the input pins is small and the overall slew
rate is that of the output stage. The input stage slew rate
is related to the quiescent current and will be reduced as
the supply current is reduced. The output slew rate is set
by the value of the feedback resistors and the internal
capacitance. Larger feedback resistors will reduce the
slew rate as will lower supply voltages, similar to the way
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LT1210CR#PBF | 功能描述:IC 35MHZ 1.1 AMP AMPLIFIER 7 DD 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):4 輸出類型:- 轉(zhuǎn)換速率:0.6 V/µs 增益帶寬積:1MHz -3db帶寬:- 電流 - 輸入偏壓:45nA 電壓 - 輸入偏移:2000µV 電流 - 電源:1.4mA 電流 - 輸出 / 通道:40mA 電壓 - 電源，單路/雙路(±):3 V ~ 32 V，±1.5 V ~ 16 V 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:14-TSSOP（0.173"，4.40mm 寬） 供應(yīng)商設(shè)備封裝:14-TSSOP 包裝:帶卷 (TR) 其它名稱:LM324ADTBR2G-NDLM324ADTBR2GOSTR |
| LT1210CR#PBF | 制造商:Linear Technology 功能描述:IC, OP-AMP, 55MHZ, 900V/s, 3mV, 7-TO-26 |
| LT1210CR#TR | 功能描述:IC AMP CURR FEEDBACK 1.1A 7DD RoHS:否 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標(biāo)準(zhǔn)包裝:2,500 系列:Excalibur™ 放大器類型:J-FET 電路數(shù):1 輸出類型:- 轉(zhuǎn)換速率:45 V/µs 增益帶寬積:10MHz -3db帶寬:- 電流 - 輸入偏壓:20pA 電壓 - 輸入偏移:490µV 電流 - 電源:1.7mA 電流 - 輸出 / 通道:48mA 電壓 - 電源，單路/雙路(±):4.5 V ~ 38 V，±2.25 V ~ 19 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-SOIC 包裝:帶卷 (TR) |
| LT1210CR#TRPBF | 功能描述:IC 35MHZ 1.1 AMP AMPLIFIER 7 DD RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標(biāo)準(zhǔn)包裝:2,500 系列:Excalibur™ 放大器類型:J-FET 電路數(shù):1 輸出類型:- 轉(zhuǎn)換速率:45 V/µs 增益帶寬積:10MHz -3db帶寬:- 電流 - 輸入偏壓:20pA 電壓 - 輸入偏移:490µV 電流 - 電源:1.7mA 電流 - 輸出 / 通道:48mA 電壓 - 電源，單路/雙路(±):4.5 V ~ 38 V，±2.25 V ~ 19 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-SOIC 包裝:帶卷 (TR) |
| LT1210CRPBF | 制造商:Linear Technology 功能描述:Op Amp 1.1A 35MHz Curr. Feedback D2PAK-8 |
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