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MAX2232, MAX2233
900MHz ISM-Band, 250mW Power Amplifiers with Analog or Digital Gain Control
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Status
Active: In Production.
Description
The MAX2232/MAX2233 low-voltage, silicon RF power amplifiers (PAs) are designed for use in the 900MHz ISM band. They 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-Ion battery. The devices typically deliver 250mW (+24dBm) of output power at 915MHz from a single +3.6V supply, or 150mW (+22dBm) from a single +2.7V supply. At +24dBm output power, power-added efficiency (PAE) is 44%.
The MAX2232/MAX2233 provide 24dB of gain, which is adjustable over a continuous 24dB span via the analog gain-control pin of the MAX2232 or in two 10dB steps via the 2-bit programmable gain-control DAC of the MAX2233. An external capacitor sets the RF output power envelope ramp time, reducing spurious emissions during power-up and power-down by providing a gradual change in output power (MAX2232).
The MAX2232/MAX2233 feature a low-power shutdown mode, which typically draws less than 1µA of supply current, saving power during "idle slots" in time-division multiple-access (TDMA) systems. The ΔVSWR of the RF input in shutdown mode relative to normal operation is 1.2:1. The devices also feature a thermal shutdown function, enabling the PA to protect itself from excessive temperature conditions that could damage the IC. A capacitor to ground limits thermal cycling by setting a thermal shutdown timeout period.
The MAX2232/MAX2233 are available in a space-saving, thermally enhanced 16-pin power-QSOP (PQSOP) package.
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Data Sheet
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An evaluation kit is available: MAX2232EVKIT, MAX2233EVKIT
Key Features
- 800MHz to 1000MHz Frequency Range
- 250mW (+24dBm) Output Power at 915MHz from +3.6V Supply
- +2.7V to +5.5V Single-Supply Operation
- 44% Power-Added Efficiency
- 24dB Power Gain
- 24dB Analog Gain-Control Range (MAX2232)
- Three Levels of Digitally Programmed Power Gain in 10dB Steps (MAX2233)
- Programmable RF Power Envelope Ramping (MAX2232)
- Thermal Shutdown
- Programmable Thermal Shutdown Timeout Period
- 0.2µA Low-Power Shutdown Mode
- Low ΔVSWR in Standby and Shutdown Modes
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Applications/Uses
- 868MHz European ISM Band
- 900MHz ISM-Band Applications
- Digital Cordless Phones
- FM Analog Transmitters
- Wireless Data
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Key Specifications:
| Power Amplifiers/Drivers |
| Part Number |
Freq.
(MHz) |
Freq.
(MHz) |
POUT
(dBm) |
Efficiency (%) |
Low Pwr. Shutdn |
Footprint
(mm x mm) |
Package/Pins |
Budgetary Price |
| min |
max |
See Notes |
| MAX2232 |
800 |
1000 |
24 |
44 |
Yes |
3.9 x 6.0 |
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$2.10 @1k |
| MAX2233 |
- |
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$2.08 @1k |
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See All Power Amplifiers/Drivers (8)
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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
Product Guides
Reliability Reports
| Show FIT data for: |
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| Request Reliability Report for: |
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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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| MAX2232EEE
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Active |
QSOP-EP;16 pin;30.9 mm²
Outline Drawing:21-0112 (PDF)
Land Pattern: 90-0240 (PDF)
Use pkgcode/variation: E16E-9*
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-40°C to +85°C
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RoHS/Lead-Free: No
Materials Analysis |
| MAX2232EEE+
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Active |
QSOP-EP;16 pin;30.9 mm²
Outline Drawing:21-0112 (PDF)
Land Pattern: 90-0240 (PDF)
Use pkgcode/variation: E16E+9*
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-40°C to +85°C
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RoHS/Lead-Free: Lead Free
Materials Analysis |
| MAX2232EEE+T
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Active |
QSOP-EP;16 pin;30.9 mm²
Outline Drawing:21-0112 (PDF)
Land Pattern: 90-0240 (PDF)
Use pkgcode/variation: E16E+9*
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-40°C to +85°C
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RoHS/Lead-Free: Lead Free
Materials Analysis |
| MAX2232EEE-T
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Active |
QSOP;16 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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| MAX2233EEE
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Active |
QSOP-EP;16 pin;30.9 mm²
Outline Drawing:21-0112 (PDF)
Land Pattern: 90-0240 (PDF)
Use pkgcode/variation: E16E-9*
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-40°C to +85°C
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RoHS/Lead-Free: No
Materials Analysis |
| MAX2233EEE+
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Active |
QSOP-EP;16 pin;30.9 mm²
Outline Drawing:21-0112 (PDF)
Land Pattern: 90-0240 (PDF)
Use pkgcode/variation: E16E+9*
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-40°C to +85°C
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RoHS/Lead-Free: Lead Free
Materials Analysis |
| MAX2233EEE+T
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Active |
QSOP;16 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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| MAX2233EEE-T
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Active |
QSOP;16 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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Notes and Comments
Power amplifier with analog gain control
Similar Products by Function
Evaluation Kits
Products with Similar Part Numbers
Didn't Find What You Need?
Information Index
Document Ref.: 19-1470
Rev 1;
2000-12-08
This page last modified: 2007-06-04
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