on March 5th 344

ADM560JRS Interface Chip Guide, Features, and Applications

Working with serial communication often means connecting logic circuits to devices that use RS232 signals. ADM560JRS helps you handle that connection with four transmitters and five receivers built into one compact chip. You can use it to translate logic level signals into RS232 voltage levels and receive data from serial lines at the same time. The device runs from a single low voltage supply and uses a charge pump to create the needed interface voltages. With support for several communication channels, it fits well in control systems, computer interfaces, and embedded devices that exchange serial data.

Catalog

ADM560JRS Overview

ADM560JRS is a low power RS 232 transceiver designed for systems that exchange serial data between logic circuits and standard RS 232 communication lines. The device integrates four transmitters and five receivers, allowing multiple signal paths within a single compact package. It operates from a single 3 V to 3.6 V supply and generates the required positive and negative interface voltages using an internal charge pump with external capacitors. Data transfer rates reach 116 kbps, supporting typical serial communication tasks. The device is packaged in a 28 pin SSOP format suited for surface mounted circuit boards. Looking for ADM560JRS? Contact us to check current stock, lead time, and pricing.

ADM560JRS Pinout Details

ADM560JRS Pin Description

Pin Number	Pin Name	Description
1	T3OUT	RS-232 transmitter output channel 3 that drives the external serial line using RS-232 voltage levels.
2	T1OUT	RS-232 transmitter output channel 1 providing converted logic signals for serial communication lines.
3	T2OUT	RS-232 transmitter output channel 2 that outputs RS-232 compliant voltage signals.
4	R2IN	RS-232 receiver input channel 2 that accepts incoming RS-232 signals from external devices.
5	R2OUT	CMOS/TTL logic output corresponding to receiver channel 2 after RS-232 level conversion.
6	T2IN	Logic level input for transmitter channel 2 that is converted internally to RS-232 output levels.
7	T1IN	Logic level input for transmitter channel 1 used to drive the RS-232 output stage.
8	R1OUT	Logic level output from receiver channel 1 representing the converted RS-232 input signal.
9	R1IN	RS-232 receiver input channel 1 connected to an external serial interface line.
10	GND	Ground reference for the device and internal circuitry.
11	VCC	Main power supply input, typically operating from approximately 3.0 V to 3.6 V.
12	C1+	Positive terminal of the first charge pump capacitor used in the voltage doubler stage.
13	V+	Positive generated voltage output from the internal charge pump used by RS-232 drivers.
14	C1−	Negative terminal of the first charge pump capacitor used in the voltage doubler circuit.
15	C2+	Positive terminal of the second charge pump capacitor used for the voltage inverter stage.
16	C2−	Negative terminal of the second charge pump capacitor used to generate the negative RS-232 voltage.
17	V−	Negative voltage output from the internal charge pump used for RS-232 signaling.
18	R5IN	RS-232 receiver input channel 5 for incoming serial data signals.
19	R5OUT	CMOS/TTL logic output corresponding to receiver channel 5 after signal conversion.
20	T3IN	Logic level input for transmitter channel 3 used to produce RS-232 output signals.
21	T4IN	Logic level input for transmitter channel 4 that feeds the internal RS-232 driver stage.
22	R4OUT	Logic level output from receiver channel 4 representing the converted RS-232 input signal.
23	R4IN	RS-232 receiver input channel 4 connected to an external communication line.
24	EN	Enable control input used to activate or deactivate the device’s internal circuitry.
25	SHDN	Shutdown control input that places the device into a low power shutdown mode.
26	R3OUT	Logic level output from receiver channel 3 corresponding to the received RS-232 signal.
27	R3IN	RS-232 receiver input channel 3 for receiving serial interface signals.
28	T4OUT	RS-232 transmitter output channel 4 providing converted serial output signals.

ADM560JRS CAD Model

ADM560JRS Symbol

ADM560JRS Footprint

ADM560JRS 3D Model

Features of ADM560JRS

Integrated RS232 Transceiver Structure

The ADM560JRS combines four transmitters and five receivers within one compact device. This arrangement supports full duplex serial communication while reducing the number of separate interface components required on a circuit board.

Single Low Voltage Supply Operation

The device operates from a single supply between 3 V and 3.6 V. This allows it to connect directly to modern low voltage logic systems without requiring additional power rails.

Internal Charge Pump Voltage Generation

An internal charge pump creates the positive and negative voltages needed for RS 232 signaling. External capacitors connected to dedicated pins assist the circuit in generating stable interface voltage levels.

Multiple Receiver Channels

Five independent receiver channels accept RS 232 input signals and convert them into logic level outputs. This allows several communication lines to be monitored and processed within one integrated circuit.

Four Dedicated Transmitter Outputs

Four transmitter paths convert logic level input signals into RS 232 output levels. These outputs drive external communication lines that connect to serial ports or other interface devices.

Receiver Noise Tolerance

Each receiver channel includes hysteresis at the input stage. This design helps maintain stable logic output when the incoming signal contains electrical noise or slow transitions.

Data Transfer Support up to 116 kbps

The device supports data rates up to 116 kilobits per second. This range covers common serial communication speeds used in control equipment and computer interfaces.

Compact Surface Mount Package

The device is provided in a 28 lead SSOP package. Its small footprint supports dense circuit layouts while maintaining clear pin spacing for reliable assembly.

ADM560JRS Technical Specifications

Product Attribute	Attribute Value
Manufacturer	Analog Devices, Inc.
Voltage - Supply	3V ~ 3.6V
Type	Transceiver
Supplier Device Package	28-SSOP
Series	-
Receiver Hysteresis	300 mV
Protocol	RS232
Package / Case	28-SSOP (0.209', 5.30mm Width)
Package	Tube
Operating Temperature	0°C ~ 70°C
Number of Drivers/Receivers	4/5
Mounting Type	Surface Mount
Duplex	Full
Data Rate	116Kbps
Base Product Number	ADM560
Moisture Sensitivity Level (MSL)	1 (Unlimited)
ECCN	EAR99
HTSUS	8542.39.0001

Functional Block Diagram of ADM560JRS

Internal structure organizes the ADM560JRS into power generation, transmitter, and receiver sections that convert logic signals to RS-232 levels and back. A charge pump stage at the top produces positive and negative supply rails from a single +3.3 V input using external capacitors connected to C1 and C2 pins, generating V+ and V− voltages used by the interface drivers. Four transmitter paths accept CMOS inputs labeled T1IN through T4IN and drive RS-232 outputs T1OUT through T4OUT. Five receiver paths accept RS-232 inputs labeled R1IN through R5IN and translate them into CMOS outputs R1OUT through R5OUT. Control and reference pins including EN or SHDN, VCC, and GND appear at the lower portion of the layout, indicating device enable control and power connections while grouping the signal flow between CMOS logic and EIA/TIA-232 communication lines.

Applications of ADM560JRS

Personal Computer Serial Interfaces

The ADM560JRS can connect logic circuits in computers or embedded controllers to RS 232 serial ports. Its transmitters and receivers manage signal level conversion so digital logic can communicate with external devices that use standard serial communication lines.

Industrial Control Equipment

Control units in industrial environments often exchange data with sensors, controllers, or diagnostic tools through serial links. The device allows these systems to interface with RS 232 communication ports while keeping the internal logic operating at low voltage levels.

Communication Terminals and Modems

Many communication terminals and modem based systems rely on RS 232 signaling between processing circuits and external communication equipment. The device handles signal translation between logic circuits and the serial interface used by these systems.

Medical Monitoring and Diagnostic Devices

Medical instruments sometimes exchange configuration data or measurement results through serial connections. The ADM560JRS provides stable signal conversion that allows microcontroller based medical equipment to communicate with external computers or data recorders.

Portable Data Logging Equipment

Portable monitoring systems and handheld instruments may use serial links to transfer stored measurements to other devices. The device allows these battery powered systems to maintain reliable RS 232 communication while operating from low voltage supplies.

Embedded Systems with Legacy Serial Links

Embedded control systems used in automation or testing often interact with older equipment that communicates through RS 232. The ADM560JRS enables modern digital circuits to maintain compatibility with these established serial communication interfaces.

Outline Dimensions of ADM560JRS

Physical package layout presents the 28 lead shrink small outline package used for the ADM560JRS with dimensions expressed in millimeters. The top view indicates the rectangular body with leads arranged along both long sides and pin numbering beginning at the corner marked with a dot. Body length ranges from 9.90 mm to 10.50 mm and body width ranges from 5.00 mm to 5.60 mm, while the overall span including leads extends approximately 7.40 mm to 8.20 mm. Lead pitch is specified as 0.65 mm between adjacent pins, supporting compact surface mounting. Side and end profiles show the seating plane, lead bend angle, and coplanarity tolerance, with maximum package height near 2.00 mm. Additional measurements define lead width, lead thickness, and terminal extension to ensure compatibility with standard SSOP land patterns defined by JEDEC MO-150-AH.

Advantages and Disadvantages of ADM560JRS

Advantages

• Provides multiple drivers and receivers in a single integrated device, reducing component count

• Low supply voltage operation suitable for modern low-power systems

• Integrated charge pump eliminates the need for external ±RS-232 supply voltages

• Receiver hysteresis improves reliability in electrically noisy environments

• Compact surface-mount package helps minimize board space usage

• Supports standard RS-232 communication making it widely compatible with serial devices

• Low power consumption suitable for battery-powered equipment

Disadvantages

• Maximum data rate limited to 116 kbps, which is slower compared to modern high-speed interfaces

• Operating temperature range is limited to commercial grade (0°C to 70°C)

• Requires external capacitors for charge pump operation

• Designed specifically for RS-232, which is considered a legacy communication standard

• Product is obsolete and no longer in active production

ADM560JRS Alternatives

Part Number	Manufacturer	Key Features	Use Case/Notes
ADM560JRSZ	Analog Devices Inc.	Packaged in a 196-LFBGA form factor designed for compact, high-density electronic assemblies. It supports surface-mount installation and reliable operation across a wide industrial temperature range from −40°C to 85°C, helping maintain stable performance in demanding circuits.	Used in advanced electronic systems that require compact packaging and dependable performance. Suitable for industrial and embedded designs where stable operation and efficient board space usage are important.
ADM560JRS-REEL	Analog Devices Inc.	Supplied in a 16-PDIP package designed for through-hole mounting. The package style allows straightforward installation and easy handling during assembly or testing. It operates within a typical commercial temperature range of 0°C to 70°C.	Commonly used in development boards, prototypes, or equipment that uses through-hole components. The DIP format also makes troubleshooting, replacement, and manual assembly simpler.
ADM560JR	Analog Devices Inc.	Encased in a compact 64-VQFN package with an exposed thermal pad. Designed for surface-mount assembly, it supports reliable operation from −40°C to 85°C while improving heat dissipation and electrical grounding.	Well suited for modern embedded systems and industrial electronics where compact size and efficient thermal management are required. Often used in high-density circuit designs.

About Analog Devices, Inc.

Analog Devices, Inc. is a semiconductor company that develops integrated circuits used for signal processing, data conversion, and interface communication. Founded in 1965 and headquartered in the United States, the company focuses on analog, mixed signal, and digital signal processing technologies. Its products are widely used in industrial systems, communication equipment, healthcare instruments, automotive electronics, and consumer devices. The company’s portfolio includes amplifiers, data converters, interface circuits, power management devices, and signal processing components designed for electronic systems that require precise and reliable signal handling.

Conclusion

The ADM560JRS is designed to handle serial communication between logic circuits and RS232 devices. You get four transmitters and five receivers in one package, which allows several signal lines to be managed at the same time. Its internal charge pump creates the required interface voltages from a single low voltage supply. The compact SSOP package helps keep circuit layouts small and organized. You can apply the device in control systems, computer interfaces, and communication equipment that rely on RS232 data exchange. With its integrated structure, it reduces the need for extra interface components.

Datasheet PDF

ADM560JRS Datasheet:

ADM560JRS.pdf

ADM560JRS.pdf

ADM560JRS.pdf