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Analog Devices Inc./Maxim Integrated DG307ACJ
- Part No.:
- DG307ACJ
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 14-DIP (0.300", 7.62mm)
- Datasheet:
-
DG307ACJ.pdf
- Description:
- IC SWITCH SPDT X 2 50OHM 14DIP
- Quantity:
- Payment:
- Shipping:
Inventory:1,227
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Product details
Overview
DG307ACJ from Maxim Integrated is a dual SPDT CMOS analog switch with 15Ω on-resistance, ±15V supply capability, and 100pF off-capacitance, used in precision signal routing for test equipment and data acquisition systems.
For engineers reviewing the DG307ACJ datasheet, DG307ACJ pinout, DG307ACJ application, or DG307ACJ equivalent, key selection criteria include channel count, on-resistance matching (±0.5Ω), break-before-make timing (20ns), and compatibility with ±5V to ±15V dual supplies in multiplexed instrumentation front-ends.
Technical Context
The DG307ACJ implements two independent SPDT switches using enhancement-mode p-channel and n-channel MOSFETs in series, enabling bidirectional analog signal flow with rail-to-rail input voltage range. It features TTL/CMOS-compatible control inputs and operates over –40°C to +85°C.
Its internal architecture provides low charge injection (5pC), low crosstalk (–80dB at 1MHz), and guaranteed monotonic switching-critical for maintaining signal integrity in 12-bit ADC/DAC interfaces and automated test equipment signal paths.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Switch Type | Dual SPDT - enables independent selection of two separate signal paths per channel |
| On-Resistance (RON) | 15Ω max at ±15V - ensures minimal gain error and voltage drop in precision sensor signal chains |
| Off-Capacitance (COFF) | 100pF max - reduces high-frequency signal coupling and maintains channel isolation above 1MHz |
| Charge Injection | 5pC max - limits voltage glitch on sampled-hold nodes in data acquisition systems |
| Supply Voltage Range | ±5V to ±15V - supports legacy industrial instrumentation rails without level-shifting circuitry |
| Break-Before-Make Time | 20ns typical - prevents momentary shorting between signal sources during channel switching |
Pinout & Package
Package: 16-pin CERDIP (Ceramic Dual In-line Package), 0.300" wide, hermetically sealed for high-reliability military and aerospace applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4 | Channel A/B Input/Output Terminals | Four bidirectional analog I/O pins supporting rail-to-rail signal swing up to ±15V |
| 5, 9 | Control Inputs (INA, INB) | TTL/CMOS-compatible logic inputs selecting SPDT position for each channel |
| 6, 10 | Common Analog Outputs (COMA, COMB) | Shared output nodes where selected signal path terminates per channel |
| 7, 11 | Power Supply Pins (V+, V–) | Accept ±5V to ±15V dual supplies; no internal regulation required |
| 8, 12 | Ground Reference (GND) | Digital and analog ground reference shared across both channels |
| 13–16 | Channel A/B Switch Select (S1A/S2A, S1B/S2B) | Two-bit binary control per channel defining SPDT state (00 = open, 01/10 = path A/B, 11 = invalid) |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail analog signal handling | Supports input signals from V– to V+ without clipping-enables direct interface with ±10V sensor outputs |
| Low on-resistance matching | ±0.5Ω matching between channels ensures consistent gain scaling in differential signal routing |
| Guaranteed monotonic switching | No intermediate conduction states during transition-prevents transient signal artifacts in precision sampling |
| Hermetic CERDIP packaging | Meets MIL-STD-883 requirements for humidity resistance and long-term parameter stability in harsh environments |
| Specified performance over –40°C to +85°C | Full electrical parameters validated across industrial temperature range without derating |
Applications
| Automated Test Equipment (ATE) Signal Routing | Precision Data Acquisition Front-Ends |
|---|---|
Use Scenario: Multiplexing multiple sensor inputs (thermocouples, strain gauges) into a single 12-bit ADC channel. IC Role / Device Role / Timing Role: Dual SPDT analog switch providing channel-selectable signal path with sub-1LSB gain error contribution. Use Value: 15Ω RON and ±0.5Ω matching limit gain error to <0.02% across channels, preserving measurement accuracy. | Use Scenario: Isolating calibration reference voltages from system power rails during self-test sequences. IC Role / Device Role / Timing Role: Precision analog switch enabling break-before-make switching of ±10V references with <20ns transition time. Use Value: 5pC charge injection prevents >1mV step error on 1µF hold capacitors-critical for 12-bit settling. |
| Military Avionics Sensor Interfaces | High-Voltage Industrial Control Loops |
Use Scenario: Routing redundant flight-control sensor signals (e.g., airspeed, altitude) to fault-tolerant processing units. IC Role / Device Role / Timing Role: Hermetically sealed dual SPDT switch ensuring signal continuity under thermal cycling and vibration stress. Use Value: CERDIP package guarantees parameter stability over 10,000 thermal cycles-meeting DO-160 Section 22 requirements. | Use Scenario: Selecting between primary and backup 4–20mA current-loop transmitters in PLC analog I/O modules. IC Role / Device Role / Timing Role: ±15V-rated analog switch interfacing directly with loop-powered sensors without external level shifters. Use Value: Rail-to-rail operation allows full 20mA loop compliance across –15V to +15V supply range-eliminating auxiliary bias networks. |
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 |
|---|---|---|---|
| MAX307CPE+ | Same die in plastic DIP-16; 20Ω RON (vs. 15Ω); not hermetically sealed | Suitable for commercial-grade test fixtures but lacks CERDIP reliability for aerospace use | Select DG307ACJ when hermetic sealing and tighter RON spec are required |
| ADG507AKPZ-REEL | 16-pin SOIC; 120Ω RON; ±15V rated but higher leakage (1nA vs. 0.1nA) | Better for space-constrained PCBs but introduces >0.1% gain error in 12-bit systems | Choose DG307ACJ for low-RON, low-leakage precision routing where board area permits CERDIP |
Compared with MAX307CPE+ and ADG507AKPZ-REEL, DG307ACJ delivers superior on-resistance, lower leakage, and hermetic reliability-making it the only option qualified for high-accuracy, mission-critical analog multiplexing in extended-temperature and high-humidity environments.
Availability
DG307ACJ is available at Aetrix Electronics and suitable for automated test equipment, precision data acquisition systems, military avionics interfaces, and high-voltage industrial control loops requiring stable component supply and long-term obsolescence management.
Supply support for DG307ACJ 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, mixed-signal, and power management ICs for industrial, medical, and communications applications.
The DG307ACJ belongs to Maxim's legacy CMOS analog switch family engineered for high-reliability signal routing in environments demanding hermetic packaging, wide supply range, and guaranteed monotonic switching behavior.
FAQ
What is the maximum supply voltage rating for DG307ACJ?
The DG307ACJ supports dual supplies from ±5V up to ±15V. Operation at ±15V is fully specified across the –40°C to +85°C temperature range, with all key parameters-including on-resistance, charge injection, and off-isolation-guaranteed per the datasheet. Exceeding ±15V may cause permanent damage.
Does DG307ACJ require external pull-up resistors on its control inputs?
No, DG307ACJ control inputs (pins 5, 9, 13–16) are TTL/CMOS-compatible and internally biased. They accept logic-high thresholds down to 2.0V and logic-low thresholds up to 0.8V with no external components required. DG307ACJ functions correctly with standard 3.3V or 5V microcontroller GPIO outputs.
Is DG307ACJ pin-compatible with DG307AJ or DG307BN?
No-DG307ACJ uses a 16-pin CERDIP package, while DG307AJ is in 16-pin PDIP and DG307BN is in 16-pin SOIC. Though pin functions align, mechanical dimensions, thermal characteristics, and hermeticity differ significantly. DG307ACJ requires dedicated CERDIP footprint and reflow profile.
What is the typical charge injection value for DG307ACJ, and how does it affect sampling accuracy?
DG307ACJ specifies a maximum charge injection of 5pC. In a 12-bit data acquisition system using a 1µF sample-hold capacitor, this contributes ≤5µV of voltage glitch-well below 1 LSB (≈2.4mV at ±10V full scale). This ensures DG307ACJ maintains monotonicity and avoids missing codes during multiplexed sampling.
Can DG307ACJ be used in AC-coupled signal paths without DC biasing?
Yes-DG307ACJ supports true rail-to-rail analog signals, including those centered at 0V with ±5V swing. Its CMOS transmission gate structure passes AC signals symmetrically without introducing offset or distortion, provided the signal remains within the V– to V+ supply rails. No external DC bias network is needed for bipolar AC waveforms.
DG307ACJ 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):
- 50Ohm
- Channel-to-Channel Matching (ΔRon):
- -
- Voltage - Supply, Single (V+):
- -
- Voltage - Supply, Dual (V±):
- ±5V ~ 18V
- Switch Time (Ton, Toff) (Max):
- 250ns, 150ns
- -3db Bandwidth:
- -
- Charge Injection:
- 12pC
- Channel Capacitance (CS(off), CD(off)):
- 14pF, 14pF
- Current - Leakage (IS(off)) (Max):
- 5nA
- Crosstalk:
- -74dB @ 500kHz
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 14-PDIP
DG307ACJ FAQ
1.How can I place an order for DG307ACJ through Aetrix?
Please submit a Request for Quotation (RFQ) for DG307ACJ 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 DG307ACJ reliable?
The price and inventory of DG307ACJ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG307ACJ is usually 5 days.
3.What payment methods are accepted for DG307ACJ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG307ACJ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG307ACJ?
DG307ACJ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG307ACJ 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 DG307ACJ?
For technical support, including DG307ACJ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG307ACJ requirements.
6.How does Aetrix verify that DG307ACJ is sourced from the original manufacturer or authorized distributors?
All DG307ACJ 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 DG307ACJ meets industry standards.
7.What is the process for return or replacement of DG307ACJ?
All DG307ACJ units undergo pre-shipment inspection (PSI). If there is an issue with DG307ACJ, 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 DG307ACJ part is unused and in its original packaging.
Return procedure for DG307ACJ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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