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參數(shù)資料
| 型號： | MAX3267CSA |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 通信及網(wǎng)絡(luò) |
| 英文描述： | 1.25Gbps/2.5Gbps, 3V to 5.5V, Low-Noise Transimpedance Preamplifiers for LANs |
| 中文描述： | SPECIALTY TELECOM CIRCUIT, PDSO8 |
| 封裝： | 0.150 INCH, SOIC-8 |
| 文件頁數(shù)： | 5/8頁 |
| 文件大?。?/td> | 152K |
| 代理商： | MAX3267CSA |
M
1.25Gbps/2.5Gbps, 3V to 5.5V, Low-Noise
Transimpedanc e Preamplifiers for LANs
_______________________________________________________________________________________
5
General Desc ription
The MAX3266 is a transimpedance amplifier designed
for 1.25Gbps fiber optic applications. Figure 2 is a func-
tional diagram of the MAX3266, which comprises a trans-
impedance amplifier, a voltage amplifier, an output
buffer, an output filter, and a DC cancellation circuit.
The MAX3267, a transimpedance amplifier designed
for 2.5Gbps fiber optic applications, shares similar
architecture with the MAX3266.
T ransimpedanc e Amplifier
The signal current at the input flows into the summing
node of a high-gain amplifier. Shunt feedback through
R
F
converts this current to a voltage with gain of approx-
imately 2.2k
(1.0k
for MAX3267). Schottky diodes
clamp the output voltage for large input currents, as
shown in Figure 3.
V oltage Amplifier
The voltage amplifier converts single-ended signals to
differential signals and introduces a voltage gain.
Output Buffer
The output buffer provides a reverse-terminated volt-
age output. The buffer is designed to drive a 100
dif-
ferential load between OUT+ and OUT-. The output
current is divided between internal, 50
load resistors
and the external load resistor. In the typical operating
circuit, this creates a voltage divider with gain of 1/2.
The MAX3266 can also be terminated with higher out-
put impedances, which increases gain and output volt-
age swing.
For optimum supply-noise rejection, the MAX3266
should be terminated with a differential load. If a single-
ended output is required, the unused output should be
similarly terminated. The MAX3266 will not drive a DC-
coupled, 50
grounded load.
VOLTAGE
AMPLIFIER
TRANSIMPEDANCE
AMPLIFIER
OUTPUT
BUFFER
OUTPUT
FILTER
OUT+
OUT-
50
50
V
CC
R
F
V
CC
LOWPASS FILTER
1.5k
FILTER
IN
GND
DC CANCELLATION
CIRCUIT
DISABLE
MAX3266
Figure 2. MAX3266 Functional Diagram
0.50
0.95
0.80
0.65
1.10
1.25
1.40
1.55
1.70
1.85
2.00
0
2
1
3
4
5
M
REVERSE BIAS (V)
C
Figure 1. Typical Photodiode Capacitance vs. Bias Voltage
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| MAX3280EAUK-T | Circular Connector; No. of Contacts:2; Series:; Body Material:Aluminum Alloy; Connecting Termination:Solder; Connector Shell Size:10SL; Circular Contact Gender:Socket; Circular Shell Style:Straight Plug; Insert Arrangement:10SL-4 RoHS Compliant: No |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX3267CSA+ | 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 |
| MAX3267CSA+T | 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 |
| MAX3267CSA-T | 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 |
| MAX3267E/D | 制造商:Maxim Integrated Products 功能描述:1.25GBPS 2.5GBPS 3V TO 5.5V LOW N - Gel-pak, waffle pack, wafer, diced wafer on film |
| MAX3267E/D DIE | 制造商:Maxim Integrated Products 功能描述: |
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