- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄44716 > LOG102AIDG4 (TEXAS INSTRUMENTS INC) LOG OR ANTILOG AMPLIFIER, 1.4 MHz BAND WIDTH, PDSO14 PDF資料下載
參數(shù)資料
| 型號： | LOG102AIDG4 |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 模擬運算功能 |
| 英文描述： | LOG OR ANTILOG AMPLIFIER, 1.4 MHz BAND WIDTH, PDSO14 |
| 封裝： | GREEN, PLASTIC, MS-012AB, SOIC-14 |
| 文件頁數(shù)： | 17/18頁 |
| 文件大小： | 490K |
| 代理商： | LOG102AIDG4 |
www.ti.com
LOG102
8
SBOS211B
FIGURE 10. Absorbance Measurement.
I
2
I
1
14
1
9
10
5
V
OUT
6
V+
V–
C
LOG102
D
2
D
1
Sample
λ
1
λ
1
λ
1
Light
Source
APPLICATION CIRCUITS
LOG RATIO
One of the more common uses of log ratio amplifiers is
to measure absorbance. A typical application is shown in
Figure 10.
Absorbance of the sample is A = log
λ
1/ λ1
(3)
If D1 and D2 are matched A ∝ (1V) logI1/I2
(4)
FIGURE 9. Reverse Biased Photodiode Using Pin 10 on
LOG102.
FIGURE 8. Precision Current Inverter/Current Source.
1.5k
+5V
1.5k
1.5k
100k
10nA to 1mA
LOG102
10nA to 1mA
100k
100k
+3.3V
1/2 OPA2335
Photodiode
Back Bias
Pin 1 or Pin 14
100k
I
1
Signal
C
(–V
RB)
I
2
REF
(–V
RB)
–V
RB
LOG102
6
9
10
14
15
V+
V
OUT
V–
DATA COMPRESSION
In many applications the compressive effects of the logarith-
mic transfer function are useful. For example, a LOG102
preceding a 12-bit Analog-to-Digital (A/D) converter can
produce the dynamic range equivalent to a 20-bit converter.
NOTES: (1) –V
RB, must be 2.5V more positive than V–. Example, for
V
RB = –9.5V, V– =12V. (2) Typically, –3.3V bias is used with ±12V supplies.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LOG114AIRGVTG4 | LOG OR ANTILOG AMPLIFIER, PQCC16 |
| LOG114AIRGVRG4 | LOG OR ANTILOG AMPLIFIER, PQCC16 |
| LOG114AIRGVT | LOG OR ANTILOG AMPLIFIER, PQCC16 |
| LOG2112AIDWE4 | LOG OR ANTILOG AMPLIFIER, PDSO16 |
| LOG2112AIDW | LOG OR ANTILOG AMPLIFIER, 1.4 MHz BAND WIDTH, PDSO16 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LOG102AIDR | 功能描述:對數(shù)放大器 Logarithmic and Log Ratio Amp RoHS:否 制造商:Texas Instruments 通道數(shù)量:3 帶寬:3 dB 共模抑制比（最小值）: 輸入補償電壓:+/- 7 mV 輸入電壓范圍（最大值）:5.5 V 工作電源電壓:4.5 V to 5.5 V 電源電流:+/- 15 mA 工作溫度范圍:- 40 C to +85 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-16 封裝:Reel |
| LOG102AIDRG4 | 功能描述:對數(shù)放大器 Logarithmic and Log Ratio Amp RoHS:否 制造商:Texas Instruments 通道數(shù)量:3 帶寬:3 dB 共模抑制比（最小值）: 輸入補償電壓:+/- 7 mV 輸入電壓范圍（最大值）:5.5 V 工作電源電壓:4.5 V to 5.5 V 電源電流:+/- 15 mA 工作溫度范圍:- 40 C to +85 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-16 封裝:Reel |
| LOG104 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:LOGARITHMIC AND LOG RATIO AMPLIFIER |
| LOG104AID | 功能描述:對數(shù)放大器 LOGARITHMIC AMP RoHS:否 制造商:Texas Instruments 通道數(shù)量:3 帶寬:3 dB 共模抑制比（最小值）: 輸入補償電壓:+/- 7 mV 輸入電壓范圍（最大值）:5.5 V 工作電源電壓:4.5 V to 5.5 V 電源電流:+/- 15 mA 工作溫度范圍:- 40 C to +85 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-16 封裝:Reel |
| LOG104AID | 制造商:Texas Instruments 功能描述:IC AMP LOG SMD SOIC8 104 |
發(fā)布緊急采購，3分鐘左右您將得到回復。