參數(shù)資料
型號(hào): LOG102AIDRG4
廠商: TEXAS INSTRUMENTS INC
元件分類(lèi): 模擬運(yùn)算功能
英文描述: LOG OR ANTILOG AMPLIFIER, 1.4 MHz BAND WIDTH, PDSO14
封裝: GREEN, PLASTIC, MS-012AB, SOIC-14
文件頁(yè)數(shù): 2/18頁(yè)
文件大小: 490K
代理商: LOG102AIDRG4
www.ti.com
LOG102
10
SBOS211B
FIGURE 12. Technique for Using Full-Scale Reference Current such that VOUT Increases with Increasing Photodiode Current.
A
1
A
2
LOG102
Q
1
Q
2
A
3
R
2
R
3
R
2
5
10
3
7
4
R
3
C
V
LOGOUT
V
REF
I
REF
I
REF =
I
MIN to IMAX
V
REF
R
1
V
OUT = VREF
LOG
(
)
R
2
R
3
I
REF
I
PHOTO
I
1
I
2
14
1
I
PHOTO
A/D
R
1
V
MIN to VMAX
FIGURE 13. High Side Shunt for Avalanche Photodiode (APD) Measures 3 Decades of APD Current.
A
1
–5V
SO-14
9
LOG102
Q
1
2
Q
2
I
OUT
I
OUT = 0.1 ISHUNT
10
1.2k
Receiver
Irx = 1
A to 1mA
I to V
Converter
APD
10gbits/sec
1k
C
A
2
A
3
V
OUT = 2.5V to 0V
I
SHUNT
100
A
500
5k
5k
+15V to +60V
+5V
25k
NOTE: (1) Available Q2 2002.
INA168
SOT23-5
REF3025(1)
2.5V
+5V
1
14
6
54
7
3
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