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MAX3665
622Mbps, Ultra-Low-Power, 3.3V Transimpedance Preamplifier for SDH/SONET
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Status
Active: In Production.
Description
The MAX3665 low-power transimpedance preamplifier
for 622Mbps SDH/SONET applications consumes only
70mW at VCC = 3.3V. Operating from a single +3.3V or
+5.0V supply, it converts a small photodiode current to a
measurable differential voltage. A DC cancellation circuit
provides a true differential output swing over a wide
range of input current levels, thus reducing pulse-width
distortion. The differential outputs are back-terminated
with 50Ω per side.
The overall transimpedance gain is nominally 8kΩ. For
input signal levels beyond approximately 50µAp-p, the
amplifier will limit the output swing to 250mV. The
MAX3665's low 55nA input noise provides a typical
sensitivity of -33.2dBm in 1300nm, 622Mbps receivers.
The MAX3665 is designed to be used in conjunction
with the MAX3676 clock recovery and data retiming IC
with limiting amplifier. Together they form a complete
3.3V or 5.0V 622Mbps SDH/SONET receiver.
In die form, the MAX3665 is designed to fit on a header
with a PIN diode. It includes a filter connection that provides
positive bias for the photodiode through a 1.5kΩ resistor to VCC. The device is available in an 8-pin
µMAX® package.
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Data Sheet
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An evaluation kit is available: MAX3665EVKIT
Key Features
- +3.3V or +5.0V Single-Supply Operation
- 55nARMS Input-Referred Noise
- 70mW Power Consumption at VCC = 3.3V
- 8kΩ Gain
- 450µA Peak Input Current
- 260ps (max) Deterministic Jitter
- Differential Output Drives 100ΩLoad
- 470MHz Bandwidth
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Applications/Uses
- PIN Photodiode Preamplifiers and Receivers
- Regenerators for SDH/SONET
- SDH/SONET Receivers
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Key Specifications:
| Transimpedance Amplifiers (TIA) |
| Part Number |
Target Oper. Range
(Gbps) |
Data Rate
(Mbps) |
VSUPPLY
(V) |
ICC
(mA) |
Input Noise
(nA) |
BW
(MHz) |
ZT
(kΩ) |
EV Kit |
Package/Pins |
| max |
typ |
max |
min |
| MAX3665 |
<1 |
622 |
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25 |
62 |
470 |
7 |
Yes |
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See All Transimpedance Amplifiers (TIA) (11)
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Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.
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Diagram
 Typical Application Circuit
Application Notes
Reliability Reports
Software/Models
Ordering Information
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Part Number
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Free
Sample |
Buy |
Status
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Package:
TYPE PINS FOOTPRINT
DRAWING CODE/VAR *
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Temp |
RoHS/Lead-Free?
Materials Analysis
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| MAX3665E/D
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Active |
DICE SALES;NA pin;DICE;
Land Pattern: Not Applicable
Use pkgcode/variation: DICE*
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See data sheet
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| MAX3665EUA
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Active |
µMAX;8 pin;16.2 mm²
Outline Drawing:21-0036 (PDF)
Land Pattern: 90-0092 (PDF)
Use pkgcode/variation: U8-1*
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-40°C to +85°C
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RoHS/Lead-Free: No
Materials Analysis |
| MAX3665EUA+
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Active |
µMAX;8 pin;16.2 mm²
Outline Drawing:21-0036 (PDF)
Land Pattern: 90-0092 (PDF)
Use pkgcode/variation: U8+1*
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-40°C to +85°C
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RoHS/Lead-Free: Lead Free
Materials Analysis |
| MAX3665EUA+T
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Active |
µMAX;8 pin;16.2 mm²
Outline Drawing:21-0036 (PDF)
Land Pattern: 90-0092 (PDF)
Use pkgcode/variation: U8+1*
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-40°C to +85°C
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RoHS/Lead-Free: Lead Free
Materials Analysis |
| MAX3665EUA-T
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Active |
uMAX;8 pin
Land Pattern: Not Available
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-40°C to +85°C
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See data sheet
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Notes:
- Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.
- Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day.
- Part number suffixes: T or T&R = tape and reel; + = RoHS/lead-free; # = RoHS/lead-exempt; -D = drypack; -U/+U on DS parts = cut tape. More: See Full Data Sheet or Maxim Product Naming Conventions.
- * Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.
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Similar Products by Function
| MAX3681 |
+3.3V, 622Mbps, SDH/SONET 1:4 Deserializer with LVDS Outputs |
| MAX3680, MAX3680A |
+3.3V, 622Mbps, SDH/SONET 1:8 Deserializer with TTL Outputs |
| MAX3676 |
622Mbps, 3.3V Clock-Recovery and Data-Retiming IC with Limiting Amplifier |
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Similar Products by Application
| Telecom Switches (PBX and Central Office) > TIA |
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Evaluation Kits
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More Information
Didn't Find What You Need?
Information Index
Document Ref.: 19-1601
Rev 2;
2005-12-13
This page last modified: 2007-06-05
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