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Renesas CA3039
- Part No.:
- CA3039
- Manufacturer:
- Renesas
- Category:
- Diode Arrays
- Package:
- -
- Datasheet:
-
CA3039.pdf
- Description:
- DIODE ARRAY- 6 MATCH. UF,LOW CAP
- Quantity:
- Payment:
- Shipping:
Inventory:5,062
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Product details
Overview
CA3039 from Intersil is a monolithic six-diode array with ultra-fast reverse recovery (1 ns typ), low capacitance (0.65 pF typ at –2 V), and tight forward voltage matching (≤5 mV max at 1 mA), designed for high-speed analog switching and modulation circuits in RF and communications systems.
For engineers reviewing the CA3039 datasheet, CA3039 pinout, CA3039 application, or CA3039 equivalent, key selection criteria include diode-to-substrate voltage rating (20 V), matched offset voltage stability over temperature (1.0 µV/°C), and metal-can thermal resistance (θJC = 120 °C/W) for high-reliability signal-path designs.
Technical Context
The CA3039 integrates five independently accessible diodes plus one substrate-connected diode (DS) on a common monolithic silicon substrate, enabling precise dynamic and static matching critical for balanced modulator topologies. Its construction supports capacitive balance when the substrate is biased significantly more negative than signal peaks.
Each diode exhibits 5 V PIV (D1–D5), while D6 (substrate diode) is rated only to 0.5 V PIV - a strict functional distinction requiring careful biasing. Diode capacitance (0.65 pF) and substrate-to-diode capacitance (3.2 pF) are separately characterized to support layout-aware RF design.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Recovery Time | 1 ns typical - enables operation beyond 500 MHz in gate and mixer applications |
| Diode Capacitance (CD) | 0.65 pF at VR = –2 V - minimizes signal distortion in high-frequency analog switches |
| VF Match (ΔVF) | ≤5 mV max at IF = 1 mA - ensures amplitude symmetry in balanced modulators |
| PIV (D1–D5) | 5 V - defines maximum signal swing before breakdown in clipping or limiting stages |
| Diode-to-Substrate Voltage (VDI) | 20 V (max), –1 V (min) - sets safe DC bias range for substrate terminal (Pin 10) |
| Forward Current (IF) | 25 mA DC - limits continuous power dissipation to ≤100 mW per diode |
| Operating Temp Range | –55 °C to +125 °C - qualified for military and industrial environmental stress |
Pinout & Package
CA3039 is housed in a 12-pin metal can package (T12.B), with hermetic sealing and low thermal resistance (θJC = 120 °C/W). Pin 10 is the common substrate terminal; Pins 1, 4, 5, 8, and 12 connect to anodes of D1–D5; Pin 6 connects to cathode of D6 (substrate diode); remaining pins are NC.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Anode of D1 | Independent signal path input for first matched diode |
| Pin 4 | Anode of D2 | Independent signal path input for second matched diode |
| Pin 5 | Anode of D3 | Independent signal path input for third matched diode |
| Pin 8 | Anode of D4 | Independent signal path input for fourth matched diode |
| Pin 12 | Anode of D5 | Independent signal path input for fifth matched diode |
| Pin 6 | Cathode of D6 (substrate diode) | Shared cathode node tied to substrate; rated only to 0.5 V PIV |
| Pin 10 | Substrate (DS) | Common reference terminal; must be biased ≤ –1 V relative to D1–D5 anodes for capacitive balance |
| Pins 2,3,7,9,11 | No Connect | Unused leads; electrically isolated and not bonded internally |
Key Features
| Feature | Design Value |
|---|---|
| Monolithic matched diode array | Six diodes on single die ensure <1.0 µV/°C offset drift and <5 mV VF mismatch at 1 mA |
| Ultra-fast recovery | 1 ns typical tRR supports >500 MHz small-signal switching without tail current |
| Low inter-diode capacitance | 0.65 pF per diode reduces feedthrough and phase error in RF mixers |
| Substrate-biased architecture | Pin 10 substrate terminal enables precise capacitive balancing in ring modulators |
| Military-grade thermal rating | –55 °C to +125 °C operation with 175 °C max junction temperature (metal can) |
Applications
| Ring Modulators | High-Speed Diode Gates |
|---|---|
Use Scenario: Carrier-suppressed amplitude modulation in HF/VHF transceivers using double-balanced topology. IC Role / Device Role / Timing Role: CA3039 provides four-quadrant switching core with matched diodes D1–D4 forming the ring; DS and substrate bias enable carrier nulling. Use Value: 1 ns tRR and 0.65 pF CD minimize sideband distortion; ≤5 mV ΔVF ensures >50 dB carrier suppression. | Use Scenario: Pulse selection and gating in time-domain reflectometry and logic-level sampling circuits. IC Role / Device Role / Timing Role: CA3039 acts as a fast, low-capacitance analog switch bank, with D1–D5 selected via independent anode control. Use Value: 0.65 pF CD and 1 ns tRR preserve nanosecond-scale pulse edges; 25 mA IF supports 100 MHz+ repetition rates. |
| Balanced Demodulators | Analog Switches |
Use Scenario: Synchronous detection of suppressed-carrier AM signals in precision instrumentation receivers. IC Role / Device Role / Timing Role: CA3039 implements dual-path demodulation using D1/D2 and D3/D4 pairs; substrate (Pin 10) referenced to local oscillator quadrature. Use Value: Matched VF and low CD reduce even-order harmonic generation; 20 V VDI allows ±10 V LO swing without leakage increase. | Use Scenario: Signal routing in programmable gain amplifier front-ends and multi-channel data acquisition systems. IC Role / Device Role / Timing Role: CA3039 functions as a low-distortion, high-isolation analog multiplexer using D1–D5 as channel elements. Use Value: 0.016 nA IR at –4 V ensures <–120 dB off-state leakage; 30 Ω RD maintains linearity up to 10 mA signal current. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar diode array applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CA3046 | Five NPN transistors (not diodes); no substrate terminal; higher capacitance (~2 pF) | Used in current-source and differential pair biasing-not suitable for RF switching or modulation | Select CA3039 for matched diode functions; CA3046 is not a functional substitute |
| MPQ2012 | Quad Schottky diode array; 0.35 pF CD; 0.5 ns tRR; no substrate terminal; plastic SOIC-14 | Lacks substrate bias capability; unsuitable for capacitive-balance-critical ring modulators | Use MPQ2012 only where substrate isolation is unnecessary and faster tRR justifies trade-off in matching |
Compared with CA3039, CA3046 serves transistor biasing-not diode switching-while MPQ2012 offers faster recovery but sacrifices substrate-based capacitive tuning and monolithic matching integrity required in precision modulators.
Availability
CA3039 is available at Aetrix Electronics and suitable for RF modulator design, high-speed test equipment, and military-grade communication subsystems requiring stable component supply across extended temperature ranges.
Supply support for CA3039 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Intersil Corporation was a U.S.-based semiconductor company specializing in high-performance analog and mixed-signal ICs, acquired by Renesas Electronics in 2017.
The CA3039 belongs to Intersil's legacy precision diode array product line, engineered specifically for RF and microwave signal conditioning where monolithic matching, ultra-fast recovery, and substrate-controlled capacitance balance are essential.
FAQ
What is the maximum reverse voltage rating for individual diodes in the CA3039?
The CA3039 specifies a peak inverse voltage (PIV) of 5 V for diodes D1 through D5. Diode D6 - the substrate-connected diode - has a much lower PIV rating of only 0.5 V. Exceeding either rating risks permanent breakdown. The CA3039 datasheet explicitly defines these limits under Absolute Maximum Ratings, and proper circuit design must respect this asymmetry between the six diodes.
How is the substrate terminal (Pin 10) used in CA3039-based ring modulators?
In ring modulator designs, the CA3039 substrate terminal (Pin 10) must be biased to a DC potential significantly more negative than the peak RF signal applied to D1–D5 anodes - typically ≤ –1 V - to maintain capacitive balance across the diode pairs. This biasing minimizes even-order distortion and enables deep carrier suppression. The CA3039's matched diode-to-substrate capacitance (3.2 pF) is characterized to support this precise layout-dependent implementation.
Can the CA3039 be used as a general-purpose diode array in digital logic clamping?
The CA3039 is not recommended for general-purpose digital clamping due to its low 5 V PIV rating and sensitivity to electrostatic discharge. Its design prioritizes RF matching and speed - not ruggedness or wide-voltage tolerance. For logic-level clamping, discrete Schottky diodes or purpose-built clamp arrays with higher PIV and ESD robustness are preferred. The CA3039 datasheet cautions against stresses beyond absolute maximum ratings, including overvoltage events common in digital I/O protection.
What is the forward voltage matching specification for CA3039 at 1 mA forward current?
The CA3039 guarantees a maximum forward voltage offset (|VF1 – VF2|) of 5 mV at IF = 1 mA, measured across any two diodes in the array. This tight matching is achieved via monolithic integration and is critical for amplitude balance in modulators and demodulators. The CA3039 datasheet confirms this value under Electrical Specifications, with a typical offset of 0.5 mV and a temperature coefficient of only 1.0 µV/°C - ensuring stability across operating temperature.
Is there a surface-mount version of the CA3039, and how does it differ electrically?
Yes - the CA3039M is the 14-lead SOIC variant of the CA3039, sharing identical electrical specifications including 1 ns tRR, 0.65 pF CD, and 5 mV VF match. However, the CA3039M uses a plastic package with higher thermal resistance (θJA = 220 °C/W vs. 200 °C/W for the metal can), no θJC rating, and a lower max junction temperature (150 °C vs. 175 °C). The CA3039M pinout differs and lacks the hermetic seal of the original CA3039 metal-can package.
CA3039 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- *
- Package/Case:
- -
- Packaging:
- -
- Product Status:
- Obsolete
- Diode Configuration:
- -
- Technology:
- -
- Voltage - DC Reverse (Vr) (Max):
- -
- Current - Average Rectified (Io) (per Diode):
- -
- Voltage - Forward (Vf) (Max) @ If:
- -
- Speed:
- -
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- -
- Operating Temperature - Junction:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
CA3039 FAQ
1.How can I place an order for CA3039 through Aetrix?
Please submit a Request for Quotation (RFQ) for CA3039 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for CA3039 reliable?
The price and inventory of CA3039 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CA3039 is usually 5 days.
3.What payment methods are accepted for CA3039?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CA3039 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CA3039?
CA3039 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CA3039 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for CA3039?
For technical support, including CA3039 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CA3039 requirements.
6.How does Aetrix verify that CA3039 is sourced from the original manufacturer or authorized distributors?
All CA3039 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that CA3039 meets industry standards.
7.What is the process for return or replacement of CA3039?
All CA3039 units undergo pre-shipment inspection (PSI). If there is an issue with CA3039, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The CA3039 part is unused and in its original packaging.
Return procedure for CA3039:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
CA3039 Tags
-
BAV99-7-F
Diodes Incorporated
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BAT54C-7-F
Diodes Incorporated
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BAV99,215
Nexperia USA Inc.
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BAT54SLT1G
onsemi
-
BAV70LT1G
onsemi
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BAT54CLT1G
onsemi
-
BAT54S-7-F
Diodes Incorporated
-
BAV99LT1G
onsemi
-
BAT54S,215
Nexperia USA Inc.
-
BAS40-04LT1G
onsemi
-
MMBD1503-TP
Micro Commercial Co
-
BAV99WT1G
onsemi
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