參數(shù)資料
型號(hào)： MAX3657E
廠商： Maxim Integrated Products, Inc.
元件分類： 運(yùn)動(dòng)控制電子
英文描述： 155Mbps Low-Noise Transimpedance Amplifier
中文描述： 155Mbps低噪聲互阻放大器
文件頁(yè)數(shù)： 6/15頁(yè)
文件大?。?/td> 433K
代理商： MAX3657E
M
155Mbps Low-Noise Transimpedance
Amplifier
6
_______________________________________________________________________________________
Detailed Description
The MAX3657 transimpedance amplifier is designed for
155Mbps fiber-optic applications. The functional dia-
gram of the MAX3657 comprises a transimpedance
amplifier, a voltage amplifier, a DC-cancellation circuit,
and a CML output buffer.
Transimpedance Amplifier
The signal current at the input flows into the summing
node of a high-gain amplifier. Shunt feedback through
resistor R
F
converts this current into a voltage. Schottky
diodes clamp the output signal for large input currents
(Figure 1).
Voltage Amplifier
The voltage amplifier provides additional gain and con-
verts the transimpedance amplifier single-ended output
signal into a differential signal.
Output Buffer
The output buffer provides a reverse-terminated volt-
age output and is designed to drive a 200
differential
load between OUT+ and OUT-. For optimum supply-
noise rejection, the MAX3657 should be terminated with
a differential load. The MAX3657 single-ended outputs
do not drive a DC-coupled grounded load. The outputs
should be AC-coupled or terminated to V
CC
. If a single-
ended output is required, both the used and the unused
outputs should be terminated in a similar manner.
DC-Cancellation Circuit
The DC-cancellation circuit uses low-frequency feed-
back to remove the DC component of the input signal
(Figure 2). This feature centers the input signal within
the transimpedance amplifier’s linear range, thereby
reducing pulse-width distortion.
The DC-cancellation circuit is internally compensated
and does not require external capacitors. This circuit
minimizes pulse-width distortion for data sequences
that exhibit a 50% mark density. A mark density signifi-
cantly different from 50% causes the MAX3657 to gen-
erate pulse-width distortion. Grounding the FILT pin
disables the DC-cancellation circuit. For normal opera-
tion, the DC-cancellation circuit must be enabled.
The DC-cancellation current is drawn from the input and
creates noise. For low-level signals with little or no DC
component, the added noise is insignificant. However,
amplifier noise increases for signals with significant DC
component (see the
Typical Operating Characteristics
).
VOLTAGE
AMPLIFIER
OUTPUT
BUFFER
OUT+
R
OUT
R
OUT
OUT-
R
F
V
CCZ
MON
LOWPASS
FILTER
R
OUT
FILT
IN
DC-CANCELLATION
CIRCUIT
TRANSIMPEDANCE
AMPLIFIER
ENABLE
+1.0V
MAX3657
Functional Diagram
相關(guān)PDF資料
PDF描述
MAX3657ETC 155Mbps Low-Noise Transimpedance Amplifier
MAX3658 622Mbps, Low-Noise, High-Gain Transimpedance Preamplifier
MAX3658AETA 622Mbps, Low-Noise, High-Gain Transimpedance Preamplifier
MAX365 Precision, Quad, SPST Analog Switches(接通電阻85Ω,漏電流0.5nA,導(dǎo)通速率250ns,單刀單擲模擬開(kāi)關(guān),DG441的改進(jìn)型)
MAX364 Precision, Quad, SPST Analog Switches(接通電阻85Ω,漏電流0.5nA,導(dǎo)通速率250ns,單刀單擲模擬開(kāi)關(guān),DG441的改進(jìn)型)
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX3657E/D 功能描述:跨阻抗放大器 RoHS:否 制造商:Texas Instruments 封裝 / 箱體:SOIC-14 帶寬:3 MHz 工作電源電壓:36 V 電源電流:5.5 mA 工作溫度范圍:- 40 C to + 85 C 封裝:Tube
MAX3657E/D DIE 制造商:Maxim Integrated Products 功能描述:
MAX3657ETC 功能描述:跨阻抗放大器 RoHS:否 制造商:Texas Instruments 封裝 / 箱體:SOIC-14 帶寬:3 MHz 工作電源電壓:36 V 電源電流:5.5 mA 工作溫度范圍:- 40 C to + 85 C 封裝:Tube
MAX3657ETC+ 功能描述:跨阻抗放大器 Integrated Circuits (ICs) RoHS:否 制造商:Texas Instruments 封裝 / 箱體:SOIC-14 帶寬:3 MHz 工作電源電壓:36 V 電源電流:5.5 mA 工作溫度范圍:- 40 C to + 85 C 封裝:Tube
MAX3657ETC+T 功能描述:跨阻抗放大器 Integrated Circuits (ICs) RoHS:否 制造商:Texas Instruments 封裝 / 箱體:SOIC-14 帶寬:3 MHz 工作電源電壓:36 V 電源電流:5.5 mA 工作溫度范圍:- 40 C to + 85 C 封裝:Tube
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫(xiě)一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*