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參數資料
| 型號： | MAX4206 |
| 廠商： | Maxim Integrated Products, Inc. |
| 元件分類： | 運動控制電子 |
| 英文描述： | Precision Transimpedance Logarithmic Amplifier with Over 5 Decades of Dynamic Range |
| 中文描述： | 高精度互阻對數放大器，動態(tài)范圍大于105 |
| 文件頁數： | 9/17頁 |
| 文件大?。?/td> | 1241K |
| 代理商： | MAX4206 |
M
Precision Transimpedance Logarithmic
Amplifier with Over 5 Decades of Dynamic Range
_______________________________________________________________________________________
9
SMALL-SIGNAL AC RESPONSE
I
LOG
TO V
LOGV1
M
FREQUENCY (Hz)
N
1M
100k
10k
1k
-50
-40
-30
-20
-10
0
10
-60
100
10M
I
LOG
= 100
μ
A
I
LOG
= 1mA
I
LOG
= 10
μ
A
I
LOG
= 1
μ
A
I
LOG
= 100nA
C
COMP
= 33pF
R
COMP
= 330
SMALL-SIGNAL AC RESPONSE
I
LOG
TO V
LOGV1
M
FREQUENCY (Hz)
N
1M
100k
10k
1k
-50
-40
-30
-20
-10
0
10
-60
100
10M
I
LOG
= 100
μ
A
I
LOG
= 1mA
I
LOG
= 10
μ
A
I
LOG
= 1
μ
A
I
LOG
= 100nA
C
COMP
= 100pF
R
COMP
= 1k
SMALL-SIGNAL AC RESPONSE
OF BUFFER
M
FREQUENCY (Hz)
N
10M
1M
100k
-9
-6
-3
0
3
-12
10k
100M
A
V
= 2V/V
A
V
= 4V/V
A
V
= 1V/V
Typical Operating Characteristics (continued)
(V
CC
= +5V, V
EE
= GND = 0V, I
REF
= 1μA, I
LOG
= 10μA, LOGV2 = SCALE, LOGV1 = OSADJ, CMVIN = CMVOUT, R
SET
> 1M
,
T
A
= +25°C, unless otherwise noted.)
Pin Description
PIN
1, 9
2
3
4
5
NAME
N.C.
REFVOUT
GND
V
EE
LOGV1
FUNCTION
No Connection. Not internally connected.
1.238V Reference Voltage Output. Bypass REFVOUT to GND with a 0 to 1μF capacitor (optional).
Ground
Negative Power Supply. Bypass V
EE
to GND with a 0.1μF capacitor.
Logarithmic Amplifier Voltage Output 1. The output scale factor of LOGV1 is 0.25V/decade.
6
OSADJ
Offset Adjust Input. When operating from a single power supply, current applied to OSADJ adjusts
the output offset voltage (see the
Output Offset
section).
7
SCALE
Scale Factor Input. Adjust the output scale factor for LOGV2 using a resistive divider (see the
Scale
Factor
section).
8
LOGV2
Logarithmic Amplifier Voltage Output 2. Adjust the output scale factor for LOGV2 using a resistive
divider (see the
Scale Factor
section).
10
V
CC
Positive Power Supply.
Bypass V
CC
to GND with a 0.1μF capacitor.
Current Reference Adjust Input. A resistor, R
SET
, from REFISET to GND adjusts the current at
REFIOUT (see the
Adjusting the Logarithmic Intercept
section).
11
REFISET
12
13
CMVOUT
REFIOUT
0.5V Common-Mode Voltage Reference Output. Bypass CMVOUT to GND with a 0.1μF capacitor.
Current Reference Output. The internal current reference output is available at REFIOUT
.
14
REFIIN
Current Reference Input. Apply an external reference current at REFIIN. I
REFIIN
is the reference
current used by the logarithmic amplifier when generating LOGV1.
15
LOGIIN
Current Input to Logarithmic Amplifier. LOGIIN is typically connected to a photodiode anode or other
external current source.
16
CMVIN
Common-Mode Voltage Input. V
CMVIN
is the common-mode voltage for the input and reference
amplifiers (see the
Common Mode
section).
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相關代理商/技術參數 |
參數描述 |
|---|---|
| MAX4206ETE | 功能描述:對數放大器 Transimpedance w/ 100Db Dynamic Range RoHS:否 制造商:Texas Instruments 通道數量: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 |
| MAX4206ETE+ | 功能描述:對數放大器 Transimpedance w/ 100Db Dynamic Range RoHS:否 制造商:Texas Instruments 通道數量: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 |
| MAX4206ETE+T | 功能描述:對數放大器 Transimpedance w/ 100Db Dynamic Range RoHS:否 制造商:Texas Instruments 通道數量: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 |
| MAX4206ETE-T | 功能描述:對數放大器 Transimpedance w/ 100Db Dynamic Range RoHS:否 制造商:Texas Instruments 通道數量: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 |
| MAX4206EVKIT | 功能描述:放大器 IC 開發(fā)工具 Transimpedance w/ 100Db Dynamic Range RoHS:否 制造商:International Rectifier 產品:Demonstration Boards 類型:Power Amplifiers 工具用于評估:IR4302 工作電源電壓:13 V to 23 V |
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