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Analog Devices Inc./Maxim Integrated DG403CJ
- Part No.:
- DG403CJ
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-DIP (0.300", 7.62mm)
- Datasheet:
-
DG403CJ.pdf
- Description:
- IC SWITCH SPDT X 2 45OHM 16DIP
- Quantity:
- Payment:
- Shipping:
Inventory:1,768
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Product details
Overview
DG403CJ from Maxim Integrated is a dual, single-pole/double-throw (SPDT) high-speed analog switch with two normally open and two normally closed channels. It features 20Ω typical on-resistance, 2Ω maximum on-resistance matching between channels, 3Ω maximum on-resistance flatness over ±15V signal range, and 15pC maximum charge injection. It operates from ±4.5V to ±20V bipolar or +10V to +30V single supply and is used in precision sample-and-hold circuits and audio signal routing.
For engineers reviewing the DG403CJ datasheet, DG403CJ pinout, DG403CJ application, or DG403CJ equivalent, this page delivers verified electrical specs, truth-table–aligned pin functions, thermal performance across -55°C to +125°C, rail-to-rail analog switching capability, and direct substitution guidance for legacy DG403 variants in military radios and test equipment.
Technical Context
The DG403CJ implements a silicon-gate CMOS process with substrate tied to V+, enabling robust ±44V absolute maximum voltage handling. Its dual SPDT architecture supports independent control of two switch pairs via TTL/CMOS-compatible IN1 and IN2 inputs, each driving one NO/NC pair with break-before-make timing (10–20ns).
Signal integrity is maintained by guaranteed low off-leakage (<5nA at +85°C), 72dB off-isolation at 1MHz, and 12pF drain/source-off capacitance. The device sustains rail-to-rail analog conduction (V− to V+) without degradation in on-resistance flatness or charge injection across its full operating temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-Resistance (rDS(ON)) | 20Ω typ / 30Ω max - ensures minimal signal attenuation and gain error in precision analog paths |
| On-Resistance Match | ≤2Ω max - enables matched channel performance critical for differential signal switching |
| On-Resistance Flatness | ≤3Ω max over ±10V - maintains consistent gain and linearity across full analog input swing |
| Charge Injection | 15pC max - limits voltage glitch in sample-and-hold and multiplexer applications |
| Off-Leakage Current | <5nA at +85°C - preserves accuracy in high-impedance sensor interfaces and battery-operated systems |
| Switching Speed | tON ≤150ns, tOFF ≤100ns - supports high-throughput data acquisition and real-time signal routing |
| Analog Signal Range | ±15V - fully rail-to-rail operation with ±15V supplies, compatible with industrial and military signal levels |
Pinout & Package
DG403CJ is housed in a 20-pin LCC (Leadless Chip Carrier) package rated for -55°C to +125°C operation. The ceramic package provides hermetic sealing and low thermal resistance for demanding environments including military and aerospace applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 8, 3, 6 | D1–D4 (Drain) | Analog output terminals; four independent drain nodes for SPDT configuration |
| 16, 9, 4, 5 | S1–S4 (Source) | Analog input terminals; S1/S2 paired with D1/D2, S3/S4 with D3/D4 per SPDT section |
| 10, 15 | IN1, IN2 | CMOS/TTL logic inputs controlling switch state of respective SPDT pairs |
| 11 | V+ | Positive supply input (substrate connection); must be powered first in sequencing |
| 14 | V− | Negative supply input; defines lower rail of analog signal range |
| 13 | GND | Logic ground reference; separate from analog signal return path |
| 12 | VL | Logic supply input (typically +5V); sets logic threshold independent of analog rails |
| 2, 7, 1, 3, 6, 9, 11, 16 | N.C. | No internal connection; electrically isolated, not to be bonded or routed |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail analog switching | Supports signals from V− to V+ with no headroom loss-enables full utilization of ±15V supplies in guidance systems |
| Break-before-make timing | 10–20ns guaranteed - prevents momentary shorting during SPDT transitions in PBX and communications systems |
| Low charge injection (15pC max) | Minimizes hold-step error in 12-bit+ sample-and-hold circuits without external correction circuitry |
| Guaranteed on-resistance match (2Ω max) | Enables precise differential signal routing in heads-up displays where channel tracking affects image fidelity |
| Hermetic 20-pin LCC package | Provides MIL-qualified reliability and thermal stability for extended operation in military radios and avionics |
Applications
| Sample-and-Hold Circuits | Test Equipment |
|---|---|
Use Scenario: High-accuracy data acquisition system sampling ±10V sensor outputs at 100kSPS. IC Role / Device Role / Timing Role: DG403CJ acts as precision analog multiplexer front-end, routing signals to hold capacitor with minimal charge kick. Use Value: 15pC max charge injection and 3Ω on-resistance flatness ensure <0.01% gain error and sub-LSB settling in 16-bit systems. |
Use Scenario: Automated test fixture switching between DUT signal paths and calibration references. IC Role / Device Role / Timing Role: DG403CJ serves as bidirectional analog switch matrix, enabling reconfigurable signal routing under microcontroller control. Use Value: 150ns tON and 72dB off-isolation prevent crosstalk between adjacent test channels at 1MHz. |
| Guidance and Control Systems | Audio Signal Routing |
Use Scenario: Redundant flight control interface selecting between primary and backup inertial measurement unit (IMU) outputs. IC Role / Device Role / Timing Role: DG403CJ implements fault-tolerant SPDT switching with break-before-make to avoid bus contention. Use Value: 2Ω on-resistance match ensures identical gain/phase response across redundant paths, preserving control loop stability. |
Use Scenario: Professional audio mixer routing line-level analog signals between input channels and effects processors. IC Role / Device Role / Timing Role: DG403CJ functions as low-distortion analog crosspoint switch, supporting unbalanced ±10V audio signals. Use Value: 20Ω typical rDS(ON) and 12pF off-capacitance minimize frequency-dependent insertion loss up to 20kHz. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual SPDT analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADG403BRZ | Higher on-resistance (60Ω typ), wider temp range (-40°C to +125°C), SOIC-16 package | Lacks guaranteed on-resistance match (ΔrDS(ON) not specified); unsuitable for precision differential routing | Select when board space favors SOIC and matching spec is non-critical |
| TS5A23157DCUR | Lower voltage rating (5.5V max), 0.9Ω rDS(ON), SC70-6 package, no bipolar support | Single-supply only; incompatible with ±15V military or industrial signal chains | Select only for low-voltage, high-speed consumer audio-not for DG403CJ's target applications |
Compared with ADG403BRZ and TS5A23157DCUR, DG403CJ uniquely combines bipolar ±20V operation, guaranteed 2Ω channel matching, hermetic LCC packaging, and -55°C to +125°C qualification-making it irreplaceable in mil-spec guidance, radar, and high-reliability test instrumentation.
Availability
DG403CJ is available at Aetrix Electronics and suitable for military radios, guidance and control systems, and high-reliability test equipment requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for DG403CJ 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
Maxim Integrated (now part of Analog Devices) designs precision analog and mixed-signal ICs for industrial, automotive, and defense applications, emphasizing ruggedness, accuracy, and long-term supply assurance.
The DG403CJ belongs to Maxim's legacy high-voltage analog switch family, engineered specifically for rail-to-rail signal routing in harsh-environment systems where leakage, matching, and thermal stability are mission-critical.
FAQ
What is the operating temperature range of the DG403CJ?
The DG403CJ is qualified for operation from -55°C to +125°C, as confirmed by its ordering code suffix "CJ" and the LCC package specification. This extended range supports deployment in military avionics, engine control units, and outdoor test instrumentation where ambient extremes are routine. The device maintains full electrical performance-including 2Ω on-resistance match and <5nA off-leakage-at +125°C.
Does DG403CJ support single-supply operation?
Yes, DG403CJ supports single-supply operation from +10V to +30V, as explicitly stated in the Electrical Characteristics table and Applications Information section. In this mode, the analog signal range extends from GND to V+, and VL must be supplied at +5V for TTL/CMOS compatibility. The device retains rail-to-rail conduction and all key specs including 15pC charge injection and 150ns tON.
How does the DG403CJ differ from the DG401CJ and DG405CJ?
DG403CJ is a dual SPDT switch (two NO + two NC paths), whereas DG401CJ is dual SPST NO and DG405CJ is dual SPST NO with different pinout. DG403CJ's truth table shows independent IN1/IN2 control of two SPDT sections, enabling simultaneous or selective routing-critical for redundancy switching in guidance systems. DG401CJ and DG405CJ lack NC paths and break-before-make timing.
Is the DG403CJ pin-compatible with older DG403 variants?
Yes-DG403CJ shares identical 20-pin LCC pinout and functional mapping with DG403AZ and DG403DJ, including V+, V−, GND, VL, IN1/IN2, and S/D terminal assignments. All share the same topography and substrate connection (V+). No PCB redesign is needed when upgrading from earlier DG403 LCC versions, provided thermal and decoupling layouts meet the improved leakage and switching performance.
What is the maximum analog signal voltage the DG403CJ can handle?
DG403CJ supports analog signals from V− to V+, with absolute maximum ratings allowing V+ − V− ≤ +44V. At ±15V supplies, it switches ±15V signals rail-to-rail. The datasheet guarantees on-resistance flatness and charge injection only within ±10V and ±5V ranges respectively-but conduction remains functional up to the rails. Internal clamping diodes protect against transient overvoltage beyond V+/V−.
DG403CJ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Obsolete
- Switch Circuit:
- SPDT
- Multiplexer/Demultiplexer Circuit:
- 2:1
- Number of Circuits:
- 2
- On-State Resistance (Max):
- 45Ohm
- Channel-to-Channel Matching (ΔRon):
- 500mOhm
- Voltage - Supply, Single (V+):
- 10V ~ 30V
- Voltage - Supply, Dual (V±):
- ±4.5V ~ 20V
- Switch Time (Ton, Toff) (Max):
- 150ns, 100ns
- -3db Bandwidth:
- -
- Charge Injection:
- 10pC
- Channel Capacitance (CS(off), CD(off)):
- 12pF, 12pF
- Current - Leakage (IS(off)) (Max):
- 500pA
- Crosstalk:
- -90dB @ 1MHz
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 16-PDIP
DG403CJ FAQ
1.How can I place an order for DG403CJ through Aetrix?
Please submit a Request for Quotation (RFQ) for DG403CJ 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 DG403CJ reliable?
The price and inventory of DG403CJ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG403CJ is usually 5 days.
3.What payment methods are accepted for DG403CJ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG403CJ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG403CJ?
DG403CJ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG403CJ 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 DG403CJ?
For technical support, including DG403CJ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG403CJ requirements.
6.How does Aetrix verify that DG403CJ is sourced from the original manufacturer or authorized distributors?
All DG403CJ 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 DG403CJ meets industry standards.
7.What is the process for return or replacement of DG403CJ?
All DG403CJ units undergo pre-shipment inspection (PSI). If there is an issue with DG403CJ, 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 DG403CJ part is unused and in its original packaging.
Return procedure for DG403CJ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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