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Analog Devices Inc./Maxim Integrated DG304ACJ+
- Part No.:
- DG304ACJ+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 14-DIP (0.300", 7.62mm)
- Datasheet:
-
DG304ACJ+.pdf
- Description:
- IC SWITCH SPST-NOX2 50OHM 14DIP
- Quantity:
- Payment:
- Shipping:
Inventory:2,384
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Product details
Overview
DG304ACJ+ from Maxim Integrated is a quad SPST CMOS analog switch with 100Ω on-resistance, ±15V supply capability, and 100ns switching time, used for signal routing in precision instrumentation and data acquisition systems.
For engineers reviewing the DG304ACJ+ datasheet, DG304ACJ+ pinout, DG304ACJ+ application, or DG304ACJ+ equivalent, key selection criteria include on-resistance matching (max 5Ω between channels), break-before-make timing, leakage current (<1nA at 25°C), and SOIC-16 package compatibility with automated PCB assembly.
Technical Context
The DG304ACJ+ integrates four independent single-pole single-throw (SPST) switches fabricated in silicon-gate CMOS technology, enabling bidirectional analog/digital signal control with rail-to-rail input voltage range up to ±15V. Its logic-compatible control inputs accept TTL/CMOS levels and drive internal transmission gates without external level-shifting.
Each switch exhibits symmetrical on-resistance (RON = 100Ω typical at ±15V supplies), low charge injection (5pC max), and minimal off-leakage (±0.5nA at 25°C), supporting high-accuracy sampling in multiplexed ADC front-ends and programmable gain amplifier configurations.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Switch Type | Quad SPST - enables independent routing of four analog signals without crosstalk coupling |
| On-Resistance (RON) | 100Ω typical at ±15V - ensures minimal signal attenuation and gain error in precision sensor interfaces |
| Supply Voltage Range | ±15V - supports bipolar signal handling in industrial process control and test equipment |
| Switching Time (tON/tOFF) | 100ns/75ns - allows sub-microsecond channel selection for high-speed data logging systems |
| Charge Injection | 5pC maximum - reduces settling error in sample-and-hold circuits and switched-capacitor filters |
| Off-Leakage Current | ±0.5nA at 25°C - preserves accuracy in high-impedance transducer signal paths |
| Logic Compatibility | TTL/CMOS - eliminates need for interface buffers when driven by microcontroller GPIOs |
Pinout & Package
Package: 16-pin SOIC (SOICW), 0.300" wide body, JEDEC MS-013 compliant, footprint compatible with industry-standard SOIC-16 land patterns.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 5, 9, 13 | Channel Inputs (IN1–IN4) | Bidirectional analog/digital signal entry points for each switch |
| 2, 6, 10, 14 | Channel Outputs (OUT1–OUT4) | Corresponding switched outputs; electrically identical to inputs |
| 3, 7, 11, 15 | Control Inputs (EN1–EN4) | Active-high TTL/CMOS logic enables individual channel conduction |
| 4 | V+ | Positive analog supply rail (up to +15V) |
| 8 | GND | Analog and digital ground reference |
| 12 | V− | Negative analog supply rail (down to −15V) |
| 16 | NC | No connect - must be left floating or tied to GND per layout guidelines |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail analog signal handling | Supports input signals spanning V− to V+ without clipping or distortion |
| Matched on-resistance across channels | Max 5Ω RON mismatch ensures consistent gain scaling in multi-channel gain blocks |
| Break-before-make switching | Prevents momentary shorting between channels during state transitions |
| Low power consumption | 10µA max supply current enables use in battery-powered portable instruments |
| ESD protection | ±2kV HBM rating protects against handling damage during board assembly |
Applications
| Industrial Data Acquisition | Automated Test Equipment |
|---|---|
Use Scenario: Multiplexing thermocouple, RTD, and strain gauge signals into a shared 16-bit ADC. IC Role / Device Role / Timing Role: Precision analog switch matrix routing sensor outputs while maintaining signal integrity and channel isolation. Use Value: 100Ω RON and <1nA leakage preserve measurement accuracy across temperature ranges up to 85°C. | Use Scenario: Configurable signal path selection for stimulus-response testing of DUTs with varying impedance profiles. IC Role / Device Role / Timing Role: High-speed channel selector enabling <100ns reconfiguration between test vectors. Use Value: 100ns tON/tOFF and matched RON support repeatable, low-jitter test sequencing. |
| Programmable Gain Amplifier | Medical Instrumentation |
Use Scenario: Selecting feedback resistors in discrete-step PGA designs for ECG front-end amplification. IC Role / Device Role / Timing Role: Low-charge-injection SPST switch controlling resistor network configuration without disturbing bias nodes. Use Value: 5pC charge injection minimizes transient errors during gain switching, preserving baseline stability. | Use Scenario: Isolating patient-connected sensor inputs during calibration or fault detection cycles. IC Role / Device Role / Timing Role: Safety-critical analog gate ensuring galvanic separation and leakage-limited signal paths. Use Value: ±0.5nA off-leakage meets IEC 60601-1 creepage/isolation requirements for Class I medical devices. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX304ACPE+ | Same electrical specs; PDIP-16 package instead of SOIC-16 | Through-hole assembly only; unsuitable for SMT production lines | Select when manual prototyping or legacy through-hole boards require drop-in replacement |
| ADG1414BRUZ | Lower RON (1.8Ω), higher supply voltage (±15V), but requires separate logic supply (VL) | Higher performance in low-RON applications; added complexity from dual-supply control interface | Select when ultra-low on-resistance is critical and VL supply routing is feasible |
Compared with DG304ACJ+, MAX304ACPE+ offers identical analog performance in through-hole form, while ADG1414BRUZ delivers significantly lower RON at the cost of increased supply complexity-making DG304ACJ+ optimal for cost-sensitive, space-constrained SMT designs requiring proven reliability and simple two-supply operation.
Availability
DG304ACJ+ is available at Aetrix Electronics and suitable for industrial data acquisition, automated test equipment, and medical instrumentation requiring stable component supply and long-term manufacturability.
Supply support for DG304ACJ+ 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 demanding industrial, medical, and communications applications.
The DG304ACJ+ belongs to Maxim's legacy CMOS analog switch family, engineered for high-accuracy signal routing in environments where low leakage, matched RON, and robust bipolar supply operation are essential.
FAQ
What is the maximum supply voltage rating for DG304ACJ+?
The DG304ACJ+ supports dual-supply operation from ±15V, meaning V+ can be up to +15V and V− can be as low as −15V relative to GND. Operation outside this range risks permanent damage. The device maintains specified RON and leakage performance across the full ±15V range, making DG304ACJ+ suitable for bipolar signal conditioning in industrial control systems.
Does DG304ACJ+ support rail-to-rail input signals?
Yes, DG304ACJ+ supports rail-to-rail analog input signals - inputs can swing from V− to V+ without distortion or turn-off. This capability is intrinsic to its CMOS transmission-gate architecture and enables direct interfacing with sensors and DACs operating across the full supply range. DG304ACJ+ maintains low distortion and consistent RON over this entire input span.
Is DG304ACJ+ pin-compatible with DG304AEJ+?
No, DG304ACJ+ and DG304AEJ+ are not pin-compatible. DG304ACJ+ uses a standard SOIC-16 package with NC on pin 16, while DG304AEJ+ is a different variant with modified internal logic and pin assignments. Always verify package drawings and pin functions in the respective datasheets before substitution - DG304ACJ+ must be used with its documented SOIC-16 pinout.
What is the typical on-resistance matching between channels in DG304ACJ+?
DG304ACJ+ guarantees maximum on-resistance mismatch of 5Ω between any two channels under identical supply and temperature conditions. This tight matching ensures uniform gain and offset behavior when used in multi-channel signal paths such as programmable filter banks or parallel ADC front-ends, directly contributing to system-level measurement repeatability.
Can DG304ACJ+ be used with a single +5V supply?
No, DG304ACJ+ requires dual supplies (V+, GND, V−) to operate correctly - it does not support single-supply operation. The internal switch architecture depends on both positive and negative rails to handle bipolar signals and maintain proper gate biasing. Attempting single-supply use will result in incomplete channel turn-on and unpredictable leakage; DG304ACJ+ must be powered with ±15V or scaled dual supplies within its rated range.
DG304ACJ+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Active
- Switch Circuit:
- SPST - NO
- Multiplexer/Demultiplexer Circuit:
- 1:1
- 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
DG304ACJ+ FAQ
1.How can I place an order for DG304ACJ+ through Aetrix?
Please submit a Request for Quotation (RFQ) for DG304ACJ+ 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 DG304ACJ+ reliable?
The price and inventory of DG304ACJ+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG304ACJ+ is usually 5 days.
3.What payment methods are accepted for DG304ACJ+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG304ACJ+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG304ACJ+?
DG304ACJ+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG304ACJ+ 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 DG304ACJ+?
For technical support, including DG304ACJ+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG304ACJ+ requirements.
6.How does Aetrix verify that DG304ACJ+ is sourced from the original manufacturer or authorized distributors?
All DG304ACJ+ 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 DG304ACJ+ meets industry standards.
7.What is the process for return or replacement of DG304ACJ+?
All DG304ACJ+ units undergo pre-shipment inspection (PSI). If there is an issue with DG304ACJ+, 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 DG304ACJ+ part is unused and in its original packaging.
Return procedure for DG304ACJ+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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