- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄8600 > AD8305ACP-R2 (Analog Devices Inc)IC LOGARITHM CONV 100DB 16-LFCSP PDF資料下載
參數(shù)資料
| 型號： | AD8305ACP-R2 |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 7/24頁 |
| 文件大小： | 0K |
| 描述： | IC LOGARITHM CONV 100DB 16-LFCSP |
| 產(chǎn)品變化通告： | Product Discontinuance 27/July/2010 |
| 設(shè)計資源： | Interfacing ADL5315 to Translinear Logarithmic Amplifier (CN0056) Interfacing ADL5317 High Side Current Mirror to a Translinear Logarithmic Amplifier in an Avalanche Photodiode Power Detector |
| 標準包裝： | 1 |
| 類型： | 對數(shù)轉(zhuǎn)換器 |
| 應(yīng)用： | 光纖 |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 16-VFQFN 裸露焊盤，CSP |
| 供應(yīng)商設(shè)備封裝： | 16-LFCSP-VQ |
| 包裝： | 標準包裝 |
| 其它名稱： | AD8305ACP-R2DKR |
AD8305
Rev. B | Page 15 of 24
CALIBRATION
The AD8305 has a nominal slope and intercept of 200 mV/decade
and 1 nA, respectively. These values are untrimmed, and the
slope alone may vary as much as 7.5% over temperature. For
this reason, it is recommended that a simple calibration be done
to achieve increased accuracy.
IPD (A)
1.4
0
V
LO
G
(V
)
1.2
1.0
0.8
0.6
0.4
0.2
4
3
2
1
0
–1
–2
–3
IDEAL OUTPUT
CALIBRATED ERROR
MEASURED OUTPUT
UNCALIBRATED ERROR
ER
R
O
R
;d
B
(1
0m
V/
d
B
)
1n
10n
10
100
1m
10m
100n
1
03
05
3-
0
35
Figure 36. Using Two-Point Calibration to Increase Measurement Accuracy
Figure 36 shows the improvement in accuracy when using a two
point calibration method. To perform this calibration, apply
two known currents, I1 and I2, in the linear operating range
between 10 nA and 1 mA. Measure the resulting output, V1 and
V2, respectively, and calculate the slope m and intercept b.
m = (V1 V2)/[log10(I1) log10(I2)]
(7)
b = V1 – m × log10(I1)
(8)
The same calibration is performed with two known optical
powers, P1 and P2. This allows for calibration of the entire
measurement system while providing a simplified relationship
between the incident optical power and VLOG voltage.
m = (V1 V2)/(P1 P2)
(9)
b = V1 m × P1
(10)
The uncalibrated error line in Figure 36 is generated assuming
that the slope of the measured output was 200 mV/ decade
when in fact it was actually 194 mV/decade. Correcting for this
discrepancy decreased measurement error up to 3 dB.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| VE-2TW-IV-F4 | CONVERTER MOD DC/DC 5.5V 150W |
| VE-2TW-IV-F3 | CONVERTER MOD DC/DC 5.5V 150W |
| VE-2TV-IV-F4 | CONVERTER MOD DC/DC 5.8V 150W |
| MAX2037CCQ+T | IC AMP VARIABLE GAIN 100-TQFP |
| MAX3861ETG+T | IC AMP POST W/AGC 24-TQFN-EP |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 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(chǎn)品培訓(xùn)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(yīng)用:CATV 安裝類型:表面貼裝 封裝/外殼:20-WQFN 裸露焊盤 供應(yīng)商設(shè)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(chǎn)品培訓(xùn)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(yīng)用:CATV 安裝類型:表面貼裝 封裝/外殼:20-WQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:20-TQFN-EP（5x5） 包裝:托盤 |
| AD8305BRU | 制造商:Analog Devices 功能描述:- Bulk |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。