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MAX2680, MAX2681, MAX2682
400MHz to 2.5GHz, Low-Noise, SiGe Downconverter Mixers
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Status
Active: In Production.
Description
The MAX2680/MAX2681/MAX2682 miniature, low-cost, low-noise downconverter mixers are designed for low-voltage operation and are ideal for use in portable communications equipment. Signals at the RF input port are mixed with signals at the local oscillator (LO) port using a double-balanced mixer. These downconverter mixers operate with RF input frequencies between 400MHz and 2500MHz, and downconvert to IF output frequencies between 10MHz and 500MHz.
The MAX2680/MAX2681/MAX2682 operate from a single +2.7V to +5.5V supply, allowing them to be powered directly from a 3-cell NiCd or a 1-cell Lithium battery. These devices offer a wide range of supply currents and input intercept (IIP3) levels to optimize system performance. Additionally, each device features a low-power shutdown mode in which it typically draws less than 0.1µA of supply current. Consult the Selector Guide for various combinations of IIP3 and supply current.
The MAX2680/MAX2681/MAX2682 are manufactured on a high-frequency, low-noise, advanced silicon-germanium process and are offered in the space-saving 6-pin SOT23 package.
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Data Sheet
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An evaluation kit is available: MAX2680EVKIT, MAX2681EVKIT, MAX2682EVKIT
Key Features
- 400MHz to 2.5GHz Operation
- +2.7V to +5.5V Single-Supply Operation
- Low Noise Figure: 6.3dB at 900MHz (MAX2680)
- High Input Third-Order Intercept Point
(IIP3 at 2450MHz)
- -6.9dBm at 5.0mA (MAX2680)
- +1.0dBm at 8.7mA (MAX2681)
- +3.2dBm at 15.0mA (MAX2682)
- <0.1µA Low-Power Shutdown Mode
- Ultra-Small Surface-Mount Packaging
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Applications/Uses
- 400MHz/900MHz/2.4GHz ISM-Band Radios
- Cell Phones/Cordless Phones
- IEEE 802.11 and Wireless Data
- Personal Communications Systems (PCS)
- Wireless Local Loop (WLL)
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Key Specifications:
| Downconverter Mixers |
| Part Number |
Channels |
RF Freq.
(MHz) |
RF Freq.
(MHz) |
LO Freq.
(MHz) |
LO Freq.
(MHz) |
IF Freq.
(MHz) |
IF Freq.
(MHz) |
Gain
(dB) |
Input IP3
(dBm) |
Noise Figure
(dB) |
VCC
(V) |
3.3V Supply Current
(mA) |
Footprint
(mm x mm) |
Industry Qualified |
Package/Pins |
Budgetary Price |
| min |
max |
min |
max |
min |
max |
See Notes |
| MAX2680 |
1 |
400 |
2500 |
400 |
2500 |
10 |
500 |
11.6 |
-12.9 |
6.3 |
2.7 to 5.5 |
5 |
2.7 x 2.9 |
| Automotive - AECQ100 | | Automotive - General |
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$0.71 @1k |
| MAX2681 |
14.2 |
-6.1 |
7 |
8.7 |
- |
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$0.71 @1k |
| MAX2682 |
14.7 |
-1.8 |
6.5 |
15 |
- |
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$0.90 @1k |
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See All Downconverter Mixers (45)
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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 Operating Circuit
Notes and Comments
Low-cost, low-noise, Silicon Germanium (SiGe) downconverters
More Information
Didn't Find What You Need?
Information Index
Document Ref.: 19-4786
Rev 2;
2003-10-22
This page last modified: 2007-07-20
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