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参数资料
| 型号： | LOG101AID |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 模拟运算功能 |
| 英文描述： | LOG OR ANTILOG AMPLIFIER, 0.01 MHz BAND WIDTH, PDSO8 |
| 封装： | PLASTIC, SOIC-8 |
| 文件页数： | 2/16页 |
| 文件大小： | 468K |
| 代理商： | LOG101AID |
www.ti.com
LOG101
10
SBOS242B
(10)
FIGURE 14. High Side Shunt for Avalanche Photodiode (APD) Measures 3-Decades of APD Current.
A
1
–5V
SO-8
5
LOG101
Q
1
2
Q
2
I
OUT
I
OUT = 0.1 ISHUNT
6
1.2k
Receiver
Irx = 1
A to 1mA
I to V
Converter
APD
10Gbits/sec
1k
C
A
2
OPA703
V
OUT = 2.5V to 0V
I
SHUNT
100
A
500
5k
5k
+15V to +60V
+5V
25k
INA168
SOT23-5
REF3025
2.5V
+5V
1
8
4
3
The individual component of error is:
K = gain accuracy (0.15%, typ), as specified in the
specification table.
IB1 = bias current of A1 (5pA, typ)
IB2 = bias current of A2 (5pA, typ)
N = log conformity error (0.01%, 0.06%, typ)
0.01% for n = 5, 0.06% for n = 7
VOSO = output offset voltage (3mV, typ)
n = number of decades over which N is specified:
Example: what is the error when
I1 = 1A and I2 = 100nA
VmV
OUT =±
(
)
±
( )(
) ±
1 0 0015
10
5 10
10
5 10
2 0 0001 5
3 0
612
712
.log
..
= 1.005055V
(11)
(12)
(13)
Since the ideal output is 1.000V, the error as a percent of
reading is
%
.
%. %
error
=
0 005055
1
100
0 5
For the case of voltage inputs, the actual transfer function is
VV
K
V
R
I
E
R
V
R
I
E
R
Nn
V
OUT
B
OS
B
OS
OSO
=
( ) ±
(
)
±
±±
11
2
1
2
log
–
Where
E
R
and
E
R
OS
1
2
are considered to be zero for large
values of resistance from external input current sources.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LOG101AIDE4 | 功能描述:对数放大器 LOGARITHMIC AMP RoHS:否 制造商:Texas Instruments 通道数量:3 带宽:3 dB 共模抑制比（最小值）: 输入补偿电压:+/- 7 mV 输入电压范围（最大值）:5.5 V 工作电源电压:4.5 V to 5.5 V 电源电流:+/- 15 mA 工作温度范围:- 40 C to +85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-16 封装:Reel |
| LOG101AIDR | 功能描述:对数放大器 LOGARITHMIC AMP RoHS:否 制造商:Texas Instruments 通道数量:3 带宽:3 dB 共模抑制比（最小值）: 输入补偿电压:+/- 7 mV 输入电压范围（最大值）:5.5 V 工作电源电压:4.5 V to 5.5 V 电源电流:+/- 15 mA 工作温度范围:- 40 C to +85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-16 封装:Reel |
| LOG101AIDRE4 | 功能描述:对数放大器 LOGARITHMIC AMP RoHS:否 制造商:Texas Instruments 通道数量:3 带宽:3 dB 共模抑制比（最小值）: 输入补偿电压:+/- 7 mV 输入电压范围（最大值）:5.5 V 工作电源电压:4.5 V to 5.5 V 电源电流:+/- 15 mA 工作温度范围:- 40 C to +85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-16 封装:Reel |
| LOG102 | 制造商:TI 制造商全称:Texas Instruments 功能描述:LOGARITHMIC AND LOG RATIO AMPLIFIER |
| LOG102AID | 功能描述:对数放大器 Logarithmic and Log Ratio Amp RoHS:否 制造商:Texas Instruments 通道数量:3 带宽:3 dB 共模抑制比（最小值）: 输入补偿电压:+/- 7 mV 输入电压范围（最大值）:5.5 V 工作电源电压:4.5 V to 5.5 V 电源电流:+/- 15 mA 工作温度范围:- 40 C to +85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-16 封装:Reel |
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