參數(shù)資料
型號(hào): OPA354AQDBVRQ1
廠商: Texas Instruments
文件頁(yè)數(shù): 3/24頁(yè)
文件大?。?/td> 0K
描述: IC OPAMP RRIO 250MHZ SOT23-5
標(biāo)準(zhǔn)包裝: 1
放大器類(lèi)型: 電壓反饋
電路數(shù): 1
輸出類(lèi)型: 滿擺幅
轉(zhuǎn)換速率: 150 V/µs
增益帶寬積: 100MHz
-3db帶寬: 250MHz
電流 - 輸入偏壓: 3pA
電壓 - 輸入偏移: 2000µV
電流 - 電源: 4.9mA
電流 - 輸出 / 通道: 100mA
電壓 - 電源,單路/雙路(±): 2.5 V ~ 5.5 V,±1.25 V ~ 2.75 V
工作溫度: -40°C ~ 125°C
安裝類(lèi)型: 表面貼裝
封裝/外殼: SC-74A,SOT-753
供應(yīng)商設(shè)備封裝: SOT-23-5
包裝: 標(biāo)準(zhǔn)包裝
產(chǎn)品目錄頁(yè)面: 854 (CN2011-ZH PDF)
其它名稱: 296-24618-6
V
IN
V
1
5V
R
SHUNT
1
Laser Diode
OPA354
C
1
50pF
R
1
10k
R
3
10k
R
4
1k
R
2
1k
1
F
+
+
V+
V
1V In = 100mA
Out, as Shown
R
SHUNT
1
Laser Diode
OPA2354
C
1
200pF
R1
100k
R
6
1
R
5
1
R3
100k
R
4
10k
R
2
10k
1
F
+
2V In = 200mA
Out, as Shown
OPA2354
+5V
OPA354-Q1
OPA2354-Q1
www.ti.com ....................................................................................................................................................... SBOS492A – JUNE 2009 – REVISED AUGUST 2009
Output Drive
The OPA354's output stage can supply a continuous output current of ±100 mA and still provide approximately
2.7-V output swing on a 5-V supply, as shown in Figure 2.
Figure 2. Laser Diode Driver
For maximum reliability, it is not recommended to run a continuous dc current in excess of ±100 mA. See the
typical characteristic curve Output Voltage Swing vs Output Current. For supplying continuous output currents
greater than ±100 mA, the OPA354 may be operated in parallel, as shown in Figure 3.
Figure 3. Parallel Operation
The OPA354 provides peak currents up to 200 mA, which corresponds to the typical short-circuit current.
Therefore, an on-chip thermal shutdown circuit is provided to protect the OPA354 from dangerously high junction
temperatures. At 160°C, the protection circuit shuts down the amplifier. Normal operation resumes when the
junction temperature cools to below 140°C.
Copyright 2009, Texas Instruments Incorporated
11
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