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HomeProductsIntegrated Circuits (ICs)Interface - Drivers, Receivers, TransceiversADM237LJR
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ADM237LJR - Analog Devices Inc.

Manufacturer Part Number
ADM237LJR
Manufacturer
Analog Devices, Inc.
Allelco Part Number
32D-ADM237LJR
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
7,170 pcs available, New & Original
Parts Description
IC TXRX RS-232 5:3 5V LP 24SOIC
Package
24-SOIC
Data sheet
ADM237LJR.pdf
RoHs Status
 
Compare
Our certification
In stock: 7170
  • Unit Price: $8.383
  • Subtotal: $0.00

Want a better price?
Add to Cart and Submit RFQ now, we'll contact you immediately.

Quantity Unit Price Ext. Price
1+ $8.383 $8.38
200+ $3.245 $649.00
500+ $3.131 $1,565.50
1000+ $3.074 $3,074.00
The above prices does not include taxes and freight rates, which will be calculated on the order pages.

Specifications

ADM237LJR Tech Specifications
Analog Devices Inc. - ADM237LJR technical specifications, attributes, parameters and parts with similar specifications to Analog Devices Inc. - ADM237LJR

Product Attribute Attribute Value
Manufacturer Analog Devices, Inc.
Voltage - Supply 4.75V ~ 5.25V
Type Transceiver
Supplier Device Package 24-SOIC
Series -
Protocol RS232
Product Attribute Attribute Value
Package / Case 24-SOIC (0.295", 7.50mm Width)
Package Tube
Number of Drivers/Receivers 4/3
Mounting Type Surface Mount
Base Product Number ADM237L

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
Moisture Sensitivity Level (MSL) 1 (Unlimited)
ECCN EAR99
HTSUS 8542.39.0001

Parts Introduction

ADM237LJR Image
ADM237LJR (1)

Manufacturer Part Number

ADM237LJR

Manufacturer

Analog Devices, Inc.

Introduction

The ADM237LJR is an integrated circuit (IC) that serves as an interface - driver, receiver, and transceiver.

Product Features and Performance

4-channel RS232 transceiver

Operates on a 4.75V to 5.25V supply voltage

Surface mount 24-SOIC package

Supports the RS232 protocol

Product Advantages

Reliable and efficient data transmission

Low power consumption

Compact surface mount package

Key Technical Parameters

Supply Voltage: 4.75V to 5.25V

Number of Drivers/Receivers: 4

Protocol: RS232

Package: 24-SOIC

Quality and Safety Features

Meets industry standards for safety and reliability

Compatibility

Suitable for use in a variety of electronic devices and systems that require an RS232 interface

Application Areas

Commonly used in industrial control systems, medical equipment, and telecommunications equipment

Product Lifecycle

The ADM237LJR is an active product, with no indication of impending discontinuation

Replacement or upgrade options may be available from the manufacturer

Key Reasons to Choose This Product

Reliable and efficient RS232 data transmission

Low power consumption

Compact surface mount package

Proven performance and quality from a reputable manufacturer

Frequently Asked Questions(FAQ)

What is the maximum data rate supported by the ADM237LJR transceiver when operating at 5V supply voltage, and how does this compare to other RS-232 transceivers in similar package sizes?
The ADM237LJR achieves a maximum data rate of 120 kbps when powered from a 5V supply, which represents a typical performance level for low-to-mid speed serial communication interfaces. This throughput falls within the standard range for single-supply RS-232 transceivers using SOIC-24 packaging, though some alternatives with external charge pumps can exceed this limit under specific conditions. However, higher data rates often require increased power consumption or reduced noise margins, making the ADM237LJR a balanced choice for applications where moderate speed and compact integration are prioritized over peak bandwidth.
How many transmit (driver) and receive (receiver) channels does the ADM237LJR provide, and what design implications does this configuration offer for multi-drop communication systems?
The ADM237LJR integrates five independent drivers and three receivers, enabling full-duplex and half-duplex serial communication across multiple signal lines. This asymmetric channel allocation allows flexible interfacing with devices that require more transmit paths than receive paths—such as industrial control systems with multiple sensor outputs feeding a central controller—without needing additional ICs. In multi-drop configurations, the receiver count limits simultaneous active inputs, so designers must ensure no more than three distinct serial streams attempt reception concurrently unless using time-division multiplexing or external arbitration logic.
Does the ADM237LJR include an onboard charge pump, and what advantages does this provide compared to external capacitor-based solutions in space-constrained PCB layouts?
Yes, the ADM237LJR incorporates an internal charge pump that generates the necessary ±10V swing for RS-232 signaling directly from a single 5V supply. This eliminates the need for bulky external capacitors typically required in discrete charge-pump implementations, reducing component count and board real estate. For designs constrained by size or EMI sensitivity, this integrated approach simplifies layout while maintaining stable voltage generation across the specified 0°C to +70°C operating range. External solutions may offer lower quiescent current but demand careful placement and filtering to avoid noise coupling into sensitive analog sections.
What is the operating temperature range of the ADM232LJR, and how might this affect its suitability in automotive or industrial environments compared to extended-temperature variants?
The ADM237LJR is rated for operation from 0°C to +70°C, which aligns with commercial-grade components and suits office, laboratory, or light-industrial settings. While adequate for many embedded applications, this narrow range excludes use in harsh environments such as automotive systems (typically requiring -40°C to +125°C) or high-heat industrial machinery. Designers targeting these domains must consider alternative parts with wider thermal specifications or implement additional thermal management if substituting the ADM237LJR, potentially introducing reliability risks due to accelerated aging or parametric drift outside guaranteed bounds.
Can the ADM237LJR be used in bidirectional communication scenarios where data flows both directions simultaneously over the same serial link, and what precautions should be taken?
Yes, the ADM237LJR supports full-duplex operation through separate driver and receiver pairs, allowing simultaneous transmission and reception on independent lines. However, care must be taken to avoid contention when sharing a common RS-232 line between two devices without proper direction control. In half-duplex applications using a single transmit/receive pin, external circuitry such as a transceiver enable pin or software-controlled GPIO switching is essential to prevent signal collisions. Mismanagement here could lead to data corruption or even damage to the IC’s output stages due to back-driving input voltages beyond absolute maximum ratings.
How does the ADM237LJR’s supply voltage tolerance compare to newer RS-232 standards like RS-232E or ISO 2110, especially in mixed-voltage system architectures?
The ADM237LJR operates from a fixed 5V supply and does not support lower voltages such as 3.3V, unlike modern low-power transceivers designed for 3.3V logic interfaces. This makes it incompatible with core logic running at reduced supply levels without level-shifting circuitry. While still compliant with classic RS-232 electrical characteristics (±12V swing), its inability to interface natively with 3.3V microcontrollers increases bill-of-materials complexity and power overhead. Designers considering migration to lower-voltage platforms should evaluate alternatives with dual-supply capability or explicit 3.3V operation to avoid unnecessary conversion stages.
Is the ADM237LJR RoHS-compliant, and what impact does this have on regulatory compliance for end products destined for global markets?
Yes, the ADM237LJR is RoHS-compliant, meaning it contains no lead, mercury, cadmium, or other restricted hazardous substances above mandated thresholds. This certification simplifies export documentation and ensures compatibility with international environmental regulations such as WEEE and REACH, particularly important for consumer electronics sold in Europe, North America, and other regulated regions. Non-compliance would risk product recalls, fines, or exclusion from supply chains, making this feature non-negotiable for mass-market deployments rather than a secondary benefit.
What packaging format is available for the ADM237LJR, and how does tube packing influence handling and inventory logistics in prototyping versus production workflows?
The ADM237LJR comes in an SOIC-24-300mil package housed in tubes for delivery. Tube packaging suits small-batch prototyping and sample distribution due to ease of manual handling and compatibility with breadboard or socketed test setups. However, it is less efficient for high-volume manufacturing where reel-to-reel tape-and-reel packaging dominates automated assembly lines. Engineers sourcing the ADM237LJR for pilot runs benefit from minimal lead times and no minimum order quantities, but must account for potential shelf-life degradation of unopened tubes and verify storage conditions to preserve solderability and mechanical integrity over time.

Parts with Similar Specifications

The three parts on the right have similar specifications to Analog Devices Inc. ADM237LJR

Product Attribute ADM237LJR-REEL ADM237LJRZ-REEL ADM237LJRZ ADM237LAR
Part Number ADM237LJR-REEL ADM237LJRZ-REEL ADM237LJRZ ADM237LAR
Manufacturer Analog Devices Inc. Analog Devices Inc. Analog Devices Inc. Analog Devices Inc.
Voltage - Supply - - - -
Base Product Number - DAC34H84 MAX500 ADS62P42
Supplier Device Package - 196-NFBGA (12x12) 16-PDIP 64-VQFN (9x9)
Package - Tape & Reel (TR) Tube Tape & Reel (TR)
Package / Case - 196-LFBGA 16-DIP (0.300', 7.62mm) 64-VFQFN Exposed Pad
Protocol - - - -
Type - - - -
Mounting Type - Surface Mount Through Hole Surface Mount
Number of Drivers/Receivers - - - -
Series - - - -

ADM237LJR Datasheet PDF

Download ADM237LJR pdf datasheets and Analog Devices Inc. documentation for ADM237LJR - Analog Devices Inc..

Datasheets
ADM231L-234L, ADM236L-241L.pdf
PCN Obsolescence/ EOL
Multiple Device Family 05/Oct/2010.pdf

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Shipment

Delivery Time

In-stock items can be shipped within 24 hours. Some parts will be arranged for delivery within 1-2 days from the date all items arrive at our warehouse. And Allelco ships order once a day at about 17:00, except Sunday. Once the goods are shipped, the estimated delivery time depends on the shipping methods and Delivery destination. The table below shows are the logistic time for some common countries.

Delivery Cost

  1. Use your express account for shipment if you have one.
  2. Use our account for the shipment. Refer to the table below for the approximate charges.
(Different time frame / countries / package size has different price.)

Delivery Method

  1. Global Common Shipment by DHL / UPS / FedEx / TNT / EMS / SF we support.
  2. Others more shipping ways, please get in touch with your customer manager.

Common Countries Logistic Time Reference
Region Country Logistic Time(Day)
America United States 5
Brazil 7
Europe Germany 5
United Kingdom 4
Italy 5
Oceania Australia 6
New Zealand 5
Asia India 4
Japan 4
Middle East Israel 6
DHL & FedEx Shipment Charges Reference
Shipment charges(KG) Reference DHL(USD$)
0.00kg-1.00kg USD$30.00 - USD$60.00
1.00kg-2.00kg USD$40.00 - USD$80.00
2.00kg-3.00kg USD$50.00 - USD$100.00
Note:
The above table is for reference only. There may have some data bias for the uncontrollable factors.
Contact us if you have any questions.
  • QC (Quality Warranty)
  • Payment Support
  • Packaging
  • Certifications & Memberships

QC (Quality Warranty)

Allelco is committed to exceeding customer expectations through customer service excellence, order accuracy, and on-time delivery.
This is achieved through our commitment to the continual improvement of our processes, services, and products.


Strict quality inspection builds a solid foundation for electronic component quality.
  1. Visual inspection
  2. Performance testing and reliability verification
  3. Standardized full-process testing
  4. Precise control of every parameter
We eliminate defective components and ensure the stable operation of electronic devices through professional quality standards.
Quality Inspection
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Payment Support

The payment method can be chosen from the methods shown below: Wire Transfer (T/T, Bank Transfer), Western Union, Credit card, PayPal.
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Stable Delivery, Sincere Partnership — Your Faithful Supply Chain Partner
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Contact us if you have any questions.

Packaging

Electrostatic Discharge Protection and Handling

All electrostatic-sensitive components are handled in accordance with electrostatic discharge control procedures. The products are hermetically sealed in anti-static safe packaging to prevent electrostatic damage. Appropriate labeling is also applied for identification and traceability. This ensures product integrity during storage, handling and transportation.


ESD

Certifications & Memberships

Third-party certified, strict quality control. Our certification
  • ISO 9001: 2015
  • ISO 13485: 2016
  • ISO 14001: 2015
  • ISO 28000: 2007
  • ISO 45001: 2018
  • GB/T 27922-2011
  • SMTA
  • IPC
  • ESD
  • PSMA
ADM237LJR Image

ADM237LJR

Analog Devices Inc.
32D-ADM237LJR

Want a better price? Add to Cart and Submit RFQ now, we'll contact you immediately.

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