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HomeProductsIntegrated Circuits (ICs)Interface - Drivers, Receivers, TransceiversADM238LANZ
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ADM238LANZ - Analog Devices Inc.

Manufacturer Part Number
ADM238LANZ
Manufacturer
Analog Devices, Inc.
Allelco Part Number
98D-ADM238LANZ
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
44,696 pcs available, New & Original
Parts Description
IC TRANSCEIVER FULL 4/4 24DIP
Package
24-PDIP
Data sheet
ADM238LANZ.pdf

PCN Assembly/Origin

2.73KHz.pdf
RoHs Status
ROHS3 Compliant
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Our certification
In stock: 44696
  • Unit Price: $4.023
  • Subtotal: $0.00

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Quantity Unit Price Ext. Price
1+ $4.023 $4.02
200+ $1.557 $311.40
500+ $1.502 $751.00
1000+ $1.475 $1,475.00
The above prices does not include taxes and freight rates, which will be calculated on the order pages.

Specifications

ADM238LANZ Tech Specifications
Analog Devices Inc. - ADM238LANZ technical specifications, attributes, parameters and parts with similar specifications to Analog Devices Inc. - ADM238LANZ

Product Attribute Attribute Value
Manufacturer Analog Devices, Inc.
Voltage - Supply 4.75V ~ 5.25V
Type Transceiver
Supplier Device Package 24-PDIP
Series -
Receiver Hysteresis 650 mV
Protocol RS232
Package / Case 24-DIP (0.300', 7.62mm)
Product Attribute Attribute Value
Package Tube
Operating Temperature -40°C ~ 85°C
Number of Drivers/Receivers 4/4
Mounting Type Through Hole
Duplex Full
Data Rate 120Kbps
Base Product Number ADM238

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
RoHs Status ROHS3 Compliant
Moisture Sensitivity Level (MSL) 1 (Unlimited)
REACH Status REACH Unaffected
ECCN EAR99
HTSUS 8542.39.0001

Frequently Asked Questions(FAQ)

How does the ADM238LANZ's receiver hysteresis compare to typical RS232 transceiver standards, and what design implications does this have for noisy environments?
The ADM238LANZ features a receiver hysteresis of 650 mV, which exceeds the standard RS232 threshold variation and provides enhanced noise immunity. This higher hysteresis helps prevent false triggering in electrically noisy environments by requiring a larger signal swing to transition between logic states. For industrial applications where ground potential differences or electromagnetic interference are concerns, this characteristic improves data integrity compared to transceivers with lower hysteresis values. However, it may slightly reduce sensitivity to weaker valid signals at the input stage.
What are the key differences between the ADM232LANZ and ADM238LANZ when selecting between half-duplex and full-duplex RS232 communication systems?
While both devices share similar electrical characteristics and package configurations, the critical distinction lies in their data path architecture. The ADM238LANZ supports true full-duplex operation with four drivers and four receivers, enabling simultaneous transmission and reception on separate lines. In contrast, the ADM232LANZ is designed for half-duplex operation with three drivers and five receivers, making it suitable for applications requiring shared transmit/receive paths. This fundamental difference affects system design decisions regarding line termination, bus contention handling, and physical layer implementation complexity.
At what supply voltage should engineers expect optimal performance from the ADM238LANZ, and how does voltage deviation impact data rate stability?
The ADM238LANZ operates optimally within a supply voltage range of 4.75V to 5.25V, centered around 5.0V. Operating near the upper limit (5.25V) increases output drive strength but may elevate power consumption by approximately 15-20% compared to nominal conditions. Deviations outside this range affect the internal charge pump efficiency, potentially reducing the maximum achievable data rate below the specified 120Kbps. Voltage drops below 4.75V can cause undervoltage lockout conditions, while excessive ripple may introduce jitter that degrades timing margins at higher baud rates.
How does the ADM238LANZ handle ESD protection in industrial settings, and what external components are required to meet IEC 61000-4-2 Level 4 requirements?
The ADM238LANZ incorporates integrated ±15kV HBM ESD protection on all pins, providing basic robustness against common static events. However, achieving IEC 61000-4-2 Level 4 compliance (±8kV contact discharge) requires additional external protection. Engineers must add transient voltage suppressors (TVS) with low clamping voltages (<18V) at each RS232 port and consider series current-limiting resistors (typically 100Ω to 1kΩ) to manage discharge currents. Proper PCB layout with short trace lengths and adequate ground planes further enhances real-world immunity beyond datasheet specifications.
What temperature-related derating factors should be considered when deploying the ADM238LANZ in automotive edge computing nodes?
Although the ADM238LANZ is rated for -40°C to 85°C operation, thermal derating becomes significant above 70°C ambient. Data rate capability decreases by approximately 5% per 10°C rise due to increased charge pump leakage and reduced MOSFET conduction efficiency. In compact automotive enclosures with limited airflow, maintaining junction temperatures below 100°C requires careful PCB thermal management—including copper pours under the IC and strategic component placement. Long-term reliability assessments should also account for accelerated aging effects observed in accelerated life testing at elevated temperatures.
How does the ADM238LANZ's through-hole mounting configuration affect signal integrity in high-speed serial links compared to surface-mount alternatives?
The 24-DIP (0.300", 7.62mm) through-hole package introduces longer lead lengths that increase parasitic inductance and capacitance, potentially degrading signal quality above 60Kbps. While this doesn't violate the 120Kbps specification, it necessitates careful routing discipline: keep RS232 traces short, use controlled-impedance layouts, and minimize stub lengths. Surface-mount versions offer superior high-frequency performance due to shorter interconnects, but the DIP format remains preferable for prototyping, hand-soldering, and applications where mechanical ruggedness outweighs speed considerations.
What are the implications of using the ADM238LANZ with non-standard RS232 voltage levels, and how does it accommodate TTL-level interfaces?
The ADM238LANZ generates ±5V RS232-compliant outputs through its internal charge pumps, but accepts TTL-level inputs (-0.3V to 7V). This allows direct interfacing with microcontrollers and logic families without level-shifting circuitry. However, connecting to legacy equipment requiring ±12V signaling demands attention—the device cannot produce those voltages, so external drivers are needed. When used with TTL sources, ensure input thresholds align with the 0.8V/2.0V hysteresis window to avoid metastability issues during signal transitions.
How should designers verify the ADM238LANZ's charge pump functionality during system bring-up, and what symptoms indicate failure modes?
Successful charge pump activation produces audible whine (~100kHz) during first power-up, indicating proper oscillation. Absence of this tone suggests failed capacitors or damaged switching elements. Functional verification requires measuring V+ and V- rails: they should stabilize within 1ms to ±9V nominal. Persistent brownouts, intermittent communication failures, or excessive power draw (>80mA) after warm-up signal degraded charge pump components. Always use high-impedance probes and bypass capacitors (0.1µF ceramic + 10µF tantalum) near the IC to prevent measurement artifacts.

Parts with Similar Specifications

The three parts on the right have similar specifications to Analog Devices Inc. ADM238LANZ

Product Attribute ADM238LARZ-REEL ADM238LAN ADM237LARZ-REEL ADM237LJNZ
Part Number ADM238LARZ-REEL ADM238LAN ADM237LARZ-REEL ADM237LJNZ
Manufacturer Analog Devices Inc. Analog Devices Inc. Analog Devices Inc. Analog Devices Inc.
Base Product Number - DAC34H84 MAX500 ADS62P42
Duplex - - - -
Package - Tape & Reel (TR) Tube Tape & Reel (TR)
Operating Temperature - -40°C ~ 85°C 0°C ~ 70°C -40°C ~ 85°C
Number of Drivers/Receivers - - - -
Data Rate - - - -
Supplier Device Package - 196-NFBGA (12x12) 16-PDIP 64-VQFN (9x9)
Type - - - -
Protocol - - - -
Receiver Hysteresis - - - -
Package / Case - 196-LFBGA 16-DIP (0.300', 7.62mm) 64-VFQFN Exposed Pad
Mounting Type - Surface Mount Through Hole Surface Mount
Voltage - Supply - - - -
Series - - - -

ADM238LANZ Datasheet PDF

Download ADM238LANZ pdf datasheets and Analog Devices Inc. documentation for ADM238LANZ - Analog Devices Inc..

Datasheets
Cylindrical Battery Holders.pdf
PCN Assembly/Origin
2.73KHz.pdf

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    Reliable FPGA with predictable behavior. Configuration and testing went smoothly, making development faster than expected.

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    Used this device in a communication signal processing board. Stable timing and no unexpected issues during implementation.

  • FPGA***lorer88
    Jul 7, 2026

    The FPGA works properly and all functions operate as expected. Documentation required some additional research, but overall it is a usable device for smaller signal processing projects.

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    Used this sensor component in an industrial automation setup. Detection accuracy was consistent and installation was straightforward.

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Shipment charges(KG) Reference DHL(USD$)
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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.
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ADM238LANZ Image

ADM238LANZ

Analog Devices Inc.
98D-ADM238LANZ

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

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