Maxim > Products > Wireless and RF > MAX2251

MAX2251

+2.8V, Single-Supply, Cellular-Band Linear Power Amplifier

Ultra-Low-Cost Cellular Band Power Amplifier Optimized for TDMA applications measures only 2mm x 2mm

Overview

Technical Documents

Ordering Info

Status

All versions are No Longer Available. See Ordering Information for recommended replacements.

Description

The MAX2251 low-voltage linear power amplifier (PA) is designed for TDMA/AMPS dual-mode phone applications. The device is packaged in an ultra-compact (2.06mm x 2.06mm) chip-scale package (CSP), and delivers over +30dBm of linear power in TDMA operation. An on-chip shutdown feature reduces operating current to 1µA (typ), eliminating the need for an external supply switch.

The MAX2251 does not need an external reference voltage, and requires only a few external matching components and no bias circuitry. Another feature of this device is the use of external bias resistors, eliminating wasted "safety-margin" current. This feature also allows current throttleback at lower output power levels, thereby maintaining the highest possible efficiency at all power levels.

Data Sheet

Download	Rev 2	(PDF, 208kB)
E-Mail

Key Features

Ultra-Compact 4 x 4 (2.06mm x 2.06mm) CSP
High Efficiency—41% at +30dBm P_OUT (TDMA) (typ)
On-Chip Power Detector
I_CC < 1µA in Shutdown Mode
+2.8V to +4.5V True Single-Supply Operation
±0.9dB Gain Variation from T_A = -40°C to +85°C
Current Adjustable with PDM or DAC signal
No External Logic Interface Circuitry Required

Applications/Uses

2-Way Pagers
Cellular-Band TDMA/AMPS Dual Mode™ Phones
Cordless Phones
PA Modules

Diagram

Typical Operating Circuit

Application Notes

Application Note 335

Maxim Wireless/RF Power Amplifier Selector Guide

Product Guides

Wireless (PDF)

Reliability Reports

Show FIT data for:
Request Reliability Report for:

Software/Models

none

Ordering Information

Filters:

Part Number:

Package:

Temperature:

Tape and Reel

Sample

Part Number	Free Sample	Buy	Status	Recommended Replacement	Package: TYPE PINS FOOTPRINT DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX2251EBE-T		N/A	No Longer Available	MAX2265EUE+	UCSP;16 pin;4.3 mm² Outline Drawing:21-0101 (PDF) Land Pattern: Not Available Use pkgcode/variation: B16-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis

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.

Similar Products by Function

MAX2264, MAX2265, MAX2266

2.7V, Single-Supply, Cellular-Band Linear Power Amplifiers

Products with Similar Part Numbers

MAX2251EVKIT

Evaluation Kit for the MAX2251

Didn't Find What You Need?

Next Day Product Selection Assistance from Applications Engineers
Parametric Search
Applications Help

Information Index

Overview		Technical Documents		Ordering Info		Related Products
Description Key Features Applications/Uses Key Specifications Diagram Notes and Comments		Data Sheet Application Notes Evaluation Kits Product Guides Reliability Reports Software/Models		Price and Availability Samples Buy Online Package Information Lead-Free Information		Similar Products by Function Similar Products by Application Evaluation Kits Products with Similar Part Numbers Products Used With This

Document Ref.: 19-1773 Rev 2; 2003-04-01
This page last modified: 2007-06-06