TOP VIEW 4 C BLOCK. Maxim Integrated Products 1

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1 19-113; Rev 1; 8/3 EVLUTION KIT VILBLE DC-to-Microwave, +V Low-Noise mplifier General Description The is a low-noise amplifier for use from DC to microwave frequencies. Operating from a single +V supply, it has a flat gain response to 9MHz. The s low noise figure and high drive capability make it ideal for a variety of transmit, receive, and buffer applications. The device is internally biased, eliminating the need for external bias resistors or inductors. In a typical application, the only external components needed are input and output blocking capacitors and a bypass capacitor. The comes in a 4-pin SOT143 package, requiring minimal board space. pplications Wireless Local Loop Global Positioning Systems (GPS) ISM Radios Special Mobile Radios Wireless Local-rea Networks Cellular Base Stations Set-Top Boxes Features Internally Biased High Gain: 18.3dB at 9MHz 3.9dB Noise Figure Single +4.V to +.V Operation -1dBm Output 1dB Compression Power Low-Cost Silicon Bipolar Design Ultra-Small SOT143 Package Ordering Information PRT TEMP RNGE PIN-PCKGE EUS-T -4 C to +8 C 4 SOT143-4 Typical Operating Circuit Pin Configuration TOP VIEW 3 4 C BLOCK C BYP GND IN IN GND 2 1 IN C BLOCK SOT143 Maxim Integrated Products 1 For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at , or visit Maxim s website at

2 BSOLUTE MXIMUM RTINGS to GND...-.3V to +8V Input Power...+13dBm Continuous Power Dissipation (T = +7 C) SOT143-4 (derate 4mW/ C above +7 C)...32mW Operating Temperature Range...-4 C to +8 C Junction Temperature...+1 C Storage Temperature Range...-6 C to +1 C Lead Temperature (soldering, 1s)...+3 C Stresses beyond those listed under bsolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. CUTION! ESD SENSITIVE DEVICE ELECTRICL CHRCTERISTICS ( = +.V, Z = Ω, f IN = 9MHz, T = +2 C, unless otherwise noted.) PRMETER Operating Temperature Range Power Gain Output 1dB Compression Point Output IP3 Noise Figure Maximum Input Voltage Standing-Wave Ratio Maximum Output Voltage Standing-Wave Ratio Group Delay Supply Voltage Supply Current CONDITIONS MIN TYP MX (Note 1) f IN = 1MHz to 1MHz 1.:1 f IN = 8MHz to 1MHz 1.3: T = T MIN to T MX = 4.V to.v UNITS C db dbm dbm db ps V m Note 1: Parts are designed to operate over specified temperature range. Specifications are production tested and guaranteed at +2 C. 2

3 Typical Operating Characteristics ( =.V, Z = Ω, f IN = 9MHz, T = +2 C, unless otherwise noted.) ICC (m) C SUPPLY CURRENT vs. SUPPLY VOLTGE (V) +8 C -4 C -1 P-1 (dbm) PUT 1dB COMPRESSION POINT vs. FREQUENCY -4 C +8 C +2 C -2 P-1 (dbm) PUT 1dB COMPRESSION POINT vs. FREQUENCY 4.V.V.V GIN vs. FREQUENCY +8 C GIN vs. FREQUENCY.V - GIN (db) C -4 C GIN (db) V.V NOISE FIGURE vs. FREQUENCY -7 3.:1 VOLTGE STNDING-WVE RTIO vs. FREQUENCY -6 NOISE FIGURE (db) C +2 C -4 C VSWR 3.:1 2.:1 2.:1 1 1.:1 IN 1.:1 3

4 Pin Description PIN NME 1 IN 2 GND FUNCTION mplifier Input. Use a series blocking capacitor with less than 3Ω reactance at your lowest operating frequency. Ground Connection. For optimum performance, provide a low-inductance connection to the ground plane. 3 mplifier Output. Use a series blocking capacitor with less than 3Ω reactance at your lowest operating frequency. 4 mined by the lowest operating frequency and is typically the same as the blocking capacitor value. Supply Connection. Bypass directly at the package pin. The value of the bypass capacitor is deter- For long lines, additional bypassing may be necessary. Table 1. Typical Scattering Parameters ( = +V, Z = Ω, T = +2 C.) FREQUENCY (GHz) S S S21 (db) S S S12 (db) S S S S K

5 Detailed Description The is a broadband amplifier with flat gain and Ω input and output ports. Its small size and internal bias circuitry make it ideal for applications where board space is limited. pplications Information External Components s shown in the Typical Operating Circuit, the is easy to use. Input and output series capacitors may be necessary to block DC bias voltages (generated by the ) from interacting with adjacent circuitry. These capacitors must be large enough to contribute negligible reactance in a Ω system at the minimum operating frequency. Use the following equation to calculate their minimum value: PC Board Layout Example n example PC board layout is given in Figure 1. It uses FR-4 with 31mil layer thickness between the RF lines and the ground plane. The board satisfies all the above requirements. RF IN RF C BLOCK = 3, f (pf) where f (in MHz) is the minimum operating frequency. The pin must be RF bypassed for correct operation. To accomplish this, connect a capacitor between the pin and ground, as close to the package as is practical. Use the same equation given above (for DC blocking capacitor values) to calculate the minimum capacitor value. If there are long lines on the PC board, additional bypassing may be necessary. This may be done further away from the package, at your discretion. Proper grounding of the GND pin is essential. If the PC board uses a topside RF ground, the GND pin should connect directly to it. For a board where the ground plane is not on the component side, the best technique is to connect the GND pin to it through multiple plated through-holes. EXPNDED VIEW Figure 1. Example PC Board Layout

6 +V Low-Noise mplifier Tape-and-Reel/Marking Information /-. DIMETER 2.2 ±.1. RDIUS TYPICL.3 ±..8 ±. Bo 4. ±.1 4. ±.1 Ko 2. ±. o = 3.1mm ±.1 Bo = 2.7mm ±.1 Ko = 1.2mm ±.1 1. ± ±.1 3. ±. 8. ±.3 1. MINIMUM NOTE: DIMENSIONS RE IN MM. ND FOLLOW EI481-1 STNDRD. MRKING INFORMTION LOT SPECIFIC X X X X CODE DH =.3R MX. ICs MY LSO BE MRKED WITH FULL PRT NME: Package Information (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information, go to B D e1 1-8 I C DIM 1 B B1 C D E e e1 H I MIN INCHES MX MILLIMETERS MIN MX E H 4-PIN SOT143-4 SMLL-LINE TRNSISTOR PCKGE B1 e Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. 6 Maxim Integrated Products, 12 San Gabriel Drive, Sunnyvale, C 9486 (48) Maxim Integrated Products Printed US is a registered trademark of Maxim Integrated Products.