ADM207ANZ

Overview

The ADM207ANZ is a CMOS RS-232 transceiver from Analog Devices, designed for EIA-232-E and V.28 interfaces using a single +5 V supply. It integrates five drivers and three receivers with on-board DC-to-DC converters that generate ±10 V levels. The device supports data rates up to 120 kB/s and operates within a temperature range of -40°C to +85°C. It requires four external capacitors ranging from 0.1 μF to 10 μF. The component lacks shutdown or enable control pins and is housed in a 24-lead PDIP package.

Feature Summary

• Integrates two internal charge pump voltage converters to generate required RS-232 voltages from a single 5 V source
• Provides Schmitt-trigger receiver inputs with hysteresis to ensure error-free reception in noisy environments
• Includes internal pull-up resistors on transmitter inputs and pull-down resistors on receiver inputs
• Features latch-up free construction and high noise immunity

Applications

• Computers
• Peripherals
• Modems
• Printers
• Instruments

Procurement Notes

Verify the specific ordering suffix to confirm the package type and compliance status. The 'AN' designation indicates a plastic dual in-line package, while 'AR' denotes SOIC and 'ARS' indicates SSOP. Ensure the 'Z' suffix is present if RoHS compliance is required for the manufacturing process. Confirm availability through authorized distributors as stock levels vary.

Selection Notes

Select the ADM207ANZ when an interface requires five transmit channels and three receive channels without the need for low-power shutdown functionality. This part is suitable for applications where continuous operation is necessary and power consumption constraints are less critical than those addressed by the ADM206 or ADM211 variants. Verify that the system can accommodate the required four external capacitors for the charge pumps.

Part Context

The ADM207ANZ belongs to the ADM2xx family of line drivers and receivers manufactured by Analog Devices. This family provides plug-in compatibility with older MAX205-211/213 derivatives while offering enhanced performance characteristics. The ADM207 specifically fills the role of a full-duplex transceiver with an asymmetric driver-to-receiver ratio, distinguishing it from symmetric counterparts like the ADM208.

Replacement Considerations

Public confirmed substitute part numbers include ADM207AN, ADM207EARU, and ADM207EARUZ. These parts maintain functional equivalence within the same product family.