Rainbow Electronics MAX2374 - Manual

General Description
The MAX2374 silicon-germanium (SiGe), switchable-
gain, variable-linearity, low-noise amplifier (LNA) is
designed for cellular-band, code-division multiple-
access (CDMA). It can be used for applications such
as TDMA and PDC or wherever high dynamic range
and low noise are required. This LNA provides a high
intermodulation intercept point (IIP3), which is
adjustable to meet specific system requirements by
selecting an appropriate external resistor. To achieve
high gain and low noise, the LNA is packaged in a tiny
ultra-chip-scale package (UCSP) with six solder
bumps. The LNA operates from a +2.7V to +5.5V single
supply and consumes just 8.5mA while achieving a
+6.2dBm input IIP3. Supply current reduces to less
than 1µA in shutdown mode.
The MAX2374 provides two gain modes. High-gain
mode optimizes system sensitivity, while low-gain mode
optimizes system linearity.
Applications
CDMA Phones
TDMA Phones
Wireless Local Loop (WLL)
GSM Handsets
Land Mobile Radio
Wireless Data
Features
♦ +2.7V to +5.5V Single Supply
♦ Low Operating Current
8.5mA for High Linearity
4.5mA for Paging
4.1mA in Low-Gain, High-Linearity Mode
♦ Low Noise Figure: 1.5dB Cellular
♦ Adjustable IIP3
♦ Two Gain Settings
♦ < 1µA Shutdown Mode
♦ Ultra-Small 6-Bump UCSP (1mm x 1.5mm)
MAX2374
SiGe, Variable IIP3, Low-Noise Amplifier
in UCSP Package
________________________________________________________________ Maxim Integrated Products 1
19-1614; Rev 0; 6/00
EVALUATION KIT MANUAL
FOLLOWS DATA SHEET
Ordering Information
*UCSP reliability is integrally linked to the user’s assembly
methods, circuit board material, and environment. Refer to the
UCSP Reliability Notice in the UCSP Reliability section of this
data sheet for more information.
For free samples and the latest literature, visit www.maxim-ic.com or phone 1-800-998-8800.
For small orders, phone 1-800-835-8769.
GND
LNAIN LNA INPUT LNA OUTPUT
GAIN-CONTROL
LOGIC OUTPUT
A3
B2
B1
B3
A2
A1
LNAOUT
BIAS
R BIAS
V CC
V CC
MAX2374
GAIN
0.01 µF 2pF
100pF
5pF
6.8nH
V CC = + 2.75V
8.2nH
Pin Configuration appears at end of data sheet.
Typical Application Circuit
PART
MAX2374EBT
TEMP. RANGE
-40°C to +85°C
PIN-
PACKAGE
6 UCSP*
TOP
MARK
AAB