LTC2804CGN-1#PBF

Drivers, Receivers, Transceivers Overview

The LTC2804CGN-1#PBF is a dual RS-232 transceiver manufactured by Analog Devices Inc., housed in a 16-lead narrow SSOP package. It operates on a supply voltage range of 1.8V to 5.5V and supports data rates up to 1Mbps with a 250pF/3kΩ load. The device integrates an internal DC-to-DC converter, eliminating the need for external charge pumps. Key electrical parameters include a typical VCC supply current of 2.3mA in normal mode and 1µA in shutdown mode. Driver outputs provide ±5V swing, while receiver outputs are compatible with logic levels from 1.8V to 5.5V via the independent VL pin.

Drivers, Receivers, Transceivers Feature Summary

• Integrated DC-to-DC converter generates required RS-232 voltage rails internally
• Independent logic supply pin allows interface with various logic levels
• Low-power modes including shutdown and receivers-active states
• Driver outputs protected against short circuits and overload

Drivers, Receivers, Transceivers Applications

• Battery-powered systems operating directly from alkaline or NiMH cells
• Computers and consumer electronics requiring RS-232 connectivity
• Diagnostic ports for industrial equipment

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix matches the required temperature grade and packaging format. The CGN-1 designation indicates a commercial temperature range and narrow SSOP package. Confirm RoHS compliance status through official manufacturer documentation prior to procurement. Ensure component authenticity by sourcing from authorized distributors only.

Drivers, Receivers, Transceivers Selection Notes

Select this part when a dual-channel RS-232 solution is needed with low power consumption. The CGN-1 variant is suitable for applications requiring a narrow surface-mount package. Consider the 1Mbps data rate capability for high-speed communication needs. Verify that the system logic voltage aligns with the VL pin requirements for proper level shifting.

Drivers, Receivers, Transceivers Part Context

This component belongs to the LTC2801 family of single and dual RS-232 transceivers. It shares architectural similarities with the LTC2801, LTC2802, and LTC2803 models but offers two driver and receiver channels. The CGN-1 suffix specifically denotes the narrow SSOP-16 package option within this product line.

Drivers, Receivers, Transceivers Replacement Considerations

LTC2804IDHC#PBF: Dual RS-232 transceiver in DFN-16 package with industrial temperature range.

Drivers, Receivers, Transceivers FAQ

How does the LTC2804 handle half-duplex operation?

Half-duplex operation is supported by using the MODE pin as a low-latency driver enable while keeping the DC-DC converter active. This allows drivers to be enabled and disabled in less than 2µs while receivers remain continuously active.

What is the function of the VL pin?

The VL pin serves as the logic supply for the receiver outputs, driver inputs, and control inputs. It allows the device to interface with logic signals ranging from 1.8V to 5.5V, independent of the main VCC supply voltage.

Can the LTC2804 operate directly from a battery?

Yes, the device operates on a VCC supply of 1.8V to 5.5V, permitting direct connection to two alkaline, NiCd, or NiMH cells without additional regulation for the main supply.