Request Quote
(Ships tomorrow)
AD1139K Equivalent & Substitute Parts
Part Overview
The AD1139K is an 18-bit Digital to Analog Converter (DAC) manufactured by Analog Devices Inc., designed for data acquisition applications requiring current output in unbuffered configuration. This component operates with internal voltage reference and parallel data interface, supporting dual supply voltages of 5V and ±15V. The AD1139K is classified as obsolete, making identification of functionally equivalent substitute parts essential for system redesign, legacy system maintenance, and procurement planning.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer | Analog Devices Inc. |
| Category | Data Acquisition |
| Number of Bits | 18 |
| Number of D/A Converters | 1 |
| Output Type | Current - Unbuffered |
| Data Interface | Parallel |
| Reference Type | Internal |
| Voltage - Supply, Analog | 5V, ±15V |
| INL/DNL (LSB) | ±0.5 (Max) |
| Operating Temperature | 0°C ~ 70°C |
| Package / Case | 32-CDIP (0.910", 23.12mm) |
| Mounting Type | Through Hole |
| Product Status | Obsolete |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitute parts for the AD1139K are identified based on strict equivalence across the following critical parameters:
- Resolution: 18-bit conversion capability
- Converter Count: Single D/A converter per package
- Output Configuration: Current output, unbuffered topology
- Data Interface: Parallel input protocol
- Reference Architecture: Internal voltage reference
- Supply Voltage Compatibility: 5V and ±15V dual supply support
- Package Form Factor: 32-CDIP through-hole mounting
- Operating Temperature Range: 0°C to 70°C
- Moisture Sensitivity: MSL 1 classification
The AD1139J qualifies as a direct substitute based on matching all functional and mechanical parameters. Differences in INL/DNL specifications and compliance certifications do not preclude substitution where application tolerance requirements permit.
Parameter Comparison
| Parameter | AD1139K | AD1139J |
|---|---|---|
| Manufacturer | Analog Devices Inc. | Analog Devices Inc. |
| Number of Bits | 18 | 18 |
| Number of D/A Converters | 1 | 1 |
| Output Type | Current - Unbuffered | Current - Unbuffered |
| Data Interface | Parallel | Parallel |
| Reference Type | Internal | Internal |
| Voltage - Supply, Analog | 5V, ±15V | 5V, ±15V |
| INL/DNL (LSB) | ±0.5 (Max) | ±1 (Max) |
| Operating Temperature | 0°C ~ 70°C | 0°C ~ 70°C |
| Package / Case | 32-CDIP (0.910", 23.12mm) | 32-CDIP (0.910", 23.12mm) |
| Mounting Type | Through Hole | Through Hole |
| Product Status | Obsolete | Obsolete |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | 1 (Unlimited) |
Engineering Selection Recommendations
The AD1139J serves as a functional equivalent to the AD1139K for applications where the specified INL/DNL tolerance of ±1 LSB maximum is acceptable. Both components share identical package geometry, supply voltage requirements, and operating temperature specifications, enabling direct socket replacement in through-hole PCB designs.
The AD1139J carries RoHS3 compliance and REACH unaffected status, providing regulatory advantages for new designs and systems subject to environmental standards. Both parts maintain MSL 1 classification, indicating no moisture sensitivity constraints during storage and handling.
Selection between AD1139K and AD1139J should be determined by application-specific linearity requirements. The AD1139K specification of ±0.5 LSB INL/DNL provides superior accuracy; the AD1139J specification of ±1 LSB INL/DNL remains suitable for applications with relaxed precision demands.
Frequently Asked Questions (FAQ)
Q: Can AD1139J replace AD1139K in existing designs?
A: Yes, the AD1139J is a direct substitute from a functional and mechanical standpoint. Both components feature identical 18-bit resolution, current output configuration, parallel data interface, and 32-CDIP package form factor. Substitution is valid provided application linearity tolerances accommodate the AD1139J INL/DNL specification of ±1 LSB maximum.
Q: What is the primary difference between AD1139K and AD1139J?
A: The primary difference is INL/DNL accuracy. The AD1139K specifies ±0.5 LSB maximum, while the AD1139J specifies ±1 LSB maximum. Both parts are otherwise electrically and mechanically equivalent.
Q: Are there package compatibility concerns?
A: No. Both the AD1139K and AD1139J use identical 32-CDIP (0.910", 23.12mm) through-hole packaging. PCB footprints and mounting procedures are interchangeable.
Q: What supply voltages do these components require?
A: Both components operate with analog supply voltages of 5V and ±15V. Dual supply configuration is required for proper operation.
Q: Are there compliance or certification differences?
A: The AD1139J carries RoHS3 compliance and REACH unaffected certification. The AD1139K compliance status is not specified in available documentation. Both components maintain MSL 1 moisture sensitivity classification.
Q: What is the operating temperature range?
A: Both the AD1139K and AD1139J operate across 0°C to 70°C. This range applies to all functional specifications and performance guarantees.
Alternative Parts
SJ6012L2TP
Littelfuse Inc.
6 Alternative Parts
JMK107BBJ476MA-RE
Taiyo Yuden
10 Alternative Parts
GMK107BBJ475MA-T
Taiyo Yuden
5 Alternative Parts
SJ6020N2ARP
Littelfuse Inc.
3 Alternative Parts
SJ6025R2ATP
Littelfuse Inc.
4 Alternative Parts
2474-05L
API Delevan Inc.
1 Alternative Parts
4590R-684K
API Delevan Inc.
1 Alternative Parts
CM6560R-334
API Delevan Inc.
1 Alternative Parts
CM6460-104
API Delevan Inc.
1 Alternative Parts
5526-12
API Delevan Inc.
1 Alternative Parts