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參數資料
| 型號： | AD8305ACP |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | 運動控制電子 |
| 英文描述： | 100 dB Range (10 nA to 1 mA) Logarithmic Converter |
| 中文描述： | LOG OR ANTILOG AMPLIFIER, QCC16 |
| 封裝： | 3 X 3 MM, MINIATURE, MO-220-VEED-2, LFCSP-16 |
| 文件頁數： | 15/20頁 |
| 文件大小： | 1301K |
| 代理商： | AD8305ACP |
REV. A
AD8305
–15–
Table I. Evaluation Board Configuration Options
Component
Function
Default Condition
P1
P2, R8, R9, R10,
R11, R17, R18
Supply Interface. Provides access to supply pins, VNEG, COMM, and VPOS. P1 = Installed
Monitor Interface. By adding 0
W
resistors to R8, R9, R10, R11, R17,
and R18, P2 = Not Installed
the VRDZ, VREF, VSUM, VOUT, and VLOG pin voltages can be monitored
using a high impedance probe.
R2, R3, R4, R6, R14, Buffer Amplifier/Output Interface. The logarithmic slope of the AD8305
C2, C7, C9, C10
can be altered using the buffer’s gain-setting resistors,
R2 and R3. R4, R14,
and C2 allow variation in the buffer loading.
R6, C7, C9, and C10 are
provided for a variety of filtering applications.
R8 = R9 = R10 = Open (Size 0603)
R17 = R18 = Open (Size 0603)
R2 = R6 = 0
W
(Size 0603)
R3 = R4 = Open (Size 0603)
R11 = R14 = 0
W
(Size 0603)
C2 = C7 = Open (Size 0603)
C9 = C10 = Open (Size 0603)
VLOG = VOUT = Installed
R1 = 200 k
W
(Size 0603)
R7 = R19 = 0
W
(Size 0603)
R1, R7, R19, R20
Intercept Adjustment. The voltage dropped across resistor R1 determines the
intercept reference current, nominally set to 10
m
A using a 200 k
W
1% resistor.
R7 and R19 can be used to adjust the output-offset voltage at the VLOG output. R20 = Open (Size 0603)
Supply Decoupling.
R12, R15, C3,
C4, C5, C6
C3 = C4 = 0.01 F
(Size 0603)
C5 = C6 = 0.1 F (Size 0603)
R12 = R15 = 0
W
(Size 0603)
C11 = 1 nF (Size 0603)
R13 = R16 = 1 k
W
(Size 0603)
C1 = C8 = 1 nF (Size 0603)
IREF = INPT = Installed
PD = Not Installed
LK1 = Installed
R5 = Open (Size 0603)
C11
R13, R16, C1, C8
VSUM Decoupling Capacitor.
Input Compensation. Provides essential HF compensation at the input pins,
INPT and IREF.
Input Interface. The test board is configured to accept a current through the
SMA connector labeled INPT. An SC-style packaged photodiode can be
used in place of the INPT SMA for optical interfacing. By removing R1 and
adding a 0
W
short for R5, a second current can be applied to the IREF input
(also SMA) for evaluating the AD8305 in log-ratio applications.
SC-Style Photodiode. Allows for direct mounting of SC style photodiodes.
IREF, INPT, PD,
LK1, R5
J1
J1 = Not Installed
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相關代理商/技術參數 |
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| AD8305ACP-R2 | 功能描述:IC LOGARITHM CONV 100DB 16-LFCSP RoHS:否 類別:集成電路 (IC) >> 線性 - 放大器 - 專用 系列:- 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:60 系列:- 類型:可變增益放大器 應用:CATV 安裝類型:表面貼裝 封裝/外殼:20-WQFN 裸露焊盤 供應商設備封裝:20-TQFN-EP（5x5） 包裝:托盤 |
| AD8305ACP-REEL7 | 制造商:Analog Devices 功能描述:SP Amp LOG Amp Single R-R O/P ±6V/12V 16-Pin LFCSP EP T/R |
| AD8305ACPZ | 制造商:AD 制造商全稱:Analog Devices 功能描述:100 dB Range (10 nA to 1 mA) ogarithmic Converter |
| AD8305ACPZ-R2 | 功能描述:IC AMP LOG CONV 100DB 16-LFCSP RoHS:是 類別:集成電路 (IC) >> 線性 - 放大器 - 專用 系列:- 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:60 系列:- 類型:可變增益放大器 應用:CATV 安裝類型:表面貼裝 封裝/外殼:20-WQFN 裸露焊盤 供應商設備封裝:20-TQFN-EP（5x5） 包裝:托盤 |
| AD8305ACPZ-RL7 | 功能描述:IC LOGARITH CONV 100DB 16-LFCSP RoHS:是 類別:集成電路 (IC) >> 線性 - 放大器 - 專用 系列:- 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:60 系列:- 類型:可變增益放大器 應用:CATV 安裝類型:表面貼裝 封裝/外殼:20-WQFN 裸露焊盤 供應商設備封裝:20-TQFN-EP（5x5） 包裝:托盤 |
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