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
Part Details
- Ultra-Compact 4 x 4 (2.06mm x 2.06mm) CSP
- High Efficiency—41% at +30dBm POUT (TDMA) (typ)
- On-Chip Power Detector
- ICC < 1µA in Shutdown Mode
- +2.8V to +4.5V True Single-Supply Operation
- ±0.9dB Gain Variation from TA = -40°C to +85°C
- Current Adjustable with PDM or DAC signal
- No External Logic Interface Circuitry Required
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.
Applications
- 2-Way Pagers
- Cellular-Band TDMA/AMPS Dual Mode™ Phones
- Cordless Phones
- PA Modules
Documentation
Data Sheet 1
Technical Articles 1
This is the most up-to-date revision of the Data Sheet.
Hardware Ecosystem
Parts | Product Life Cycle | Description |
---|---|---|
Product 1 | ||
MAX2265 | 2.7V, Single-Supply, Cellular-Band Linear Power Amplifiers |
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