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Features and Benefits
- 460 kbps Data Rate
- Specified at 3.3 V
- Meets EIA-232E Specifications
- 0.1 µF Charge Pump Capacitors
- Upgrade for MAX3222/32 and LTC1385
- Low Power Shutdown (ADM3222E and ADM1385)
- DIP, SO, SOIC, SSOP and TSSOP
- Package Options
- ESD Protection to IEC1000-4-2 (801.2)
on RS-232 Pins (ADM3202 Only)
±8 kV: Contact Discharge
±15 kV: Air-Gap Discharge
The ADM3202/ADM3222/ADM1385 are high speed, 2-channel RS232/V.28 interface devices which operate from a single +3.3 V power supply. Low power consumption and a shutdown facility (ADM3222/ADM1385) makes them ideal for battery powered portable instruments.
The ADM3202/ADM3222/ADM1385 conform to the EIA-232E and CCITT V.28 specifications and operate at data rates up to 230 kbps. Four external 0.1 µF charge pump capacitors are used for the voltage doubler/inverter permitting operation from a single +3.3 V supply.
The ADM3222/ADM1385 contain additional enable and shutdown circuitry. The EN input may be used to three-state the receiver outputs. The SD input is used to power down the charge pump and transmitter outputs reducing the quiescent current to less than 1 µA. The receivers remain enabled during shutdown unless disabled using EN.
The ADM3202 is available in a 16-lead DIP, narrow and wide SO as well as a space saving TSSOP package. The ADM3222 is available in 18 lead DIP , SO and in 20 lead SSOP and TSSOP. The ADM1385 is available in a 20 lead SSOP package and is pin compatible with the LTC1385 CG.
Product Lifecycle Production
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
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