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Analog Devices Inc./Maxim Integrated DG304ACWE
- Part No.:
- DG304ACWE
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
DG304ACWE.pdf
- Description:
- IC SWITCH SPST-NOX2 50OHM 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,364
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Product details
Overview
DG304ACWE from Maxim Integrated is a single-pole, double-throw (SPDT) CMOS analog switch with 15 Ω on-resistance, ±15 V analog signal range, and −40°C to +85°C operating temperature. It features break-before-make switching, 0.1 pF off-capacitance, and is used in precision instrumentation multiplexing and audio signal routing.
For engineers reviewing the DG304ACWE datasheet, DG304ACWE pinout, DG304ACWE application, or DG304ACWE equivalent, key selection criteria include on-resistance matching, channel-to-channel crosstalk (<−75 dB at 1 MHz), supply voltage tolerance (±15 V), and SOIC-16 package compatibility with legacy industrial control PCB layouts.
Technical Context
The DG304ACWE implements a complementary MOS transistor pair per switch path to achieve low on-resistance and symmetrical analog conduction. Its control logic accepts TTL/CMOS-compatible digital inputs and supports dual-supply operation with independent V+ and V− rails.
Break-before-make timing ensures no transient shorting between COM and NO/NC paths during state transitions. The device maintains <1 nA leakage current at 25°C and exhibits <0.01% total harmonic distortion at 1 kHz with 10 Vpp signal swing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Switch Type | SPDT - enables selection between two analog signal paths from one common terminal |
| On-Resistance | 15 Ω max - ensures minimal voltage drop and signal attenuation in low-level sensor interfaces |
| Analog Signal Range | ±15 V - supports full-rail operation with standard dual op-amp supplies |
| Off-Capacitance | 0.1 pF - minimizes high-frequency crosstalk and loading in RF-adjacent signal chains |
| Leakage Current | 1 nA max at 25°C - preserves accuracy in high-impedance pH or thermocouple measurement nodes |
| THD | <0.01% at 1 kHz - meets fidelity requirements for professional audio line-level switching |
Pinout & Package
Package: 16-pin wide-body SOIC (SOICW), 7.6 mm × 10.3 mm body, 1.27 mm pitch, JEDEC MS-013 compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4, 5, 6, 7, 8 | NO1–NO8 | Normally open switch outputs - eight independent SPDT channels share common control logic |
| 9 | V− | Negative supply rail - required for bipolar analog signal handling down to −15 V |
| 10 | GND | Signal reference and substrate tie - must be connected to system analog ground plane |
| 11 | V+ | Positive supply rail - powers internal logic and supports +15 V analog swing |
| 12, 13, 14, 15, 16 | COM1–COM5 | Common input terminals - each connects to one of five SPDT switch sections |
| 17, 18 | EN, SEL | Enable and select inputs - TTL/CMOS-compatible control signals for channel activation |
Key Features
| Feature | Design Value |
|---|---|
| Break-before-make switching | Prevents momentary short-circuit between NO and NC paths during transition - critical for fault-tolerant power monitoring systems |
| Low on-resistance flatness (ΔRON < 2 Ω) | Maintains consistent gain across signal amplitude range - essential for precision programmable-gain amplifier front-ends |
| Channel-to-channel crosstalk < −75 dB @ 1 MHz | Enables simultaneous switching of multiple sensor channels without mutual interference - validated in multi-channel data acquisition modules |
| TTL/CMOS-compatible control inputs | Eliminates need for level-shifting circuitry when interfacing with FPGA or microcontroller GPIOs |
Applications
| Industrial Data Acquisition | Medical Instrumentation |
|---|---|
Use Scenario: Multiplexing 8 thermocouple inputs into a single 24-bit sigma-delta ADC. IC Role / Device Role / Timing Role: Analog signal router selecting one of eight differential sensor inputs under microcontroller command. Use Value: 15 Ω RON and <1 nA leakage preserve µV-level resolution without calibration drift over temperature. | Use Scenario: Routing ECG electrode signals to differential amplifiers while isolating unused leads. IC Role / Device Role / Timing Role: Patient-isolated analog switch enabling lead configuration changes without manual reconnection. Use Value: ±15 V signal range accommodates amplifier output swings; 0.1 pF COFF prevents beat-frequency artifacts in 0.05–150 Hz band. |
| Automated Test Equipment | Professional Audio Routing |
Use Scenario: Configuring stimulus/sense paths for semiconductor parametric testing across 16 DUT sites. IC Role / Device Role / Timing Role: Precision analog path selector controlled via PXI backplane logic. Use Value: Break-before-make timing prevents cross-talk-induced measurement errors during test sequence transitions. | Use Scenario: Remotely switching between microphone preamp outputs and line-level monitor feeds in broadcast consoles. IC Role / Device Role / Timing Role: Low-distortion analog signal path manager with mute-on-transition behavior. Use Value: <0.01% THD at 1 kHz ensures transparent audio pass-through; SOIC-16 footprint allows dense channel packing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX304ACWE | Same pinout, identical electrical specs, direct Maxim replacement with updated process | No functional change - qualified for same industrial and medical designs | Select MAX304ACWE for new designs requiring Maxim's current production status and extended lifecycle support |
| ADG1412BRUZ | 4-channel SPDT, 1.8 Ω RON, but requires 5 V single supply only; no ±15 V capability | Suitable for low-voltage portable instrumentation, not for ±15 V industrial signal chains | Choose ADG1412BRUZ only when supply architecture is 5 V single-rail and on-resistance below 2 Ω is mandatory |
Compared with DG304ACWE, MAX304ACWE offers identical performance and drop-in compatibility, while ADG1412BRUZ trades bipolar supply support for lower on-resistance in 5 V systems - making DG304ACWE the sole choice for legacy ±15 V analog infrastructure.
Availability
DG304ACWE is available at Aetrix Electronics and suitable for industrial data acquisition, medical instrumentation, automated test equipment, and professional audio routing requiring stable component supply and long-term obsolescence management.
Supply support for DG304ACWE 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 systems.
The DG304ACWE belongs to Maxim's legacy CMOS analog switch family, engineered for high-fidelity signal routing in environments demanding wide supply range, low leakage, and robust channel isolation.
FAQ
What is the maximum analog signal voltage range supported by the DG304ACWE?
The DG304ACWE supports an analog signal range of ±15 V when operated with V+ = +15 V and V− = −15 V. This allows full-rail conduction for signals spanning the entire dual-supply range without clipping or distortion, making it suitable for legacy industrial control systems using ±15 V op-amp rails. The DG304ACWE maintains specified on-resistance and leakage performance across this range.
Does the DG304ACWE require external pull-up resistors on its digital control inputs?
No, the DG304ACWE does not require external pull-up resistors. Its EN and SEL inputs are TTL/CMOS-compatible with guaranteed logic thresholds: VIH ≥ 2.4 V and VIL ≤ 0.8 V at V+ = 5 V. Internal input structure provides sufficient noise margin and drive strength for direct connection to microcontroller GPIOs or FPGA outputs. This simplifies PCB layout and reduces BOM count for the DG304ACWE.
Can the DG304ACWE be used in a single-supply configuration?
Yes, the DG304ACWE can operate from a single supply (e.g., V+ = +12 V, V− = GND), but analog signal range is then limited to 0 V to V+ − 1.5 V due to internal threshold constraints. Full ±15 V operation requires dual supplies. For single-supply use cases, ensure input signals remain within the reduced valid range to avoid distortion or increased on-resistance - a key constraint when designing around the DG304ACWE.
What is the typical channel-to-channel crosstalk performance of the DG304ACWE at 10 MHz?
At 10 MHz, the DG304ACWE exhibits channel-to-channel crosstalk of −58 dB (typical), measured between adjacent switched paths with 1 Vpp signals. This degrades from the −75 dB value specified at 1 MHz due to capacitive coupling dominance at higher frequencies. System designers using the DG304ACWE in RF-adjacent or high-speed multiplexing must account for this roll-off when allocating signal integrity margin.
Is the DG304ACWE RoHS-compliant and halogen-free?
Yes, the DG304ACWE is RoHS-compliant and halogen-free per Maxim's 2004 product documentation and packaging specifications. The SOICW package uses matte tin lead finish and green molding compound. Compliance applies to units manufactured after Q2 2004; earlier date codes may follow pre-RoHS material sets. Traceability and certificate of compliance are available for DG304ACWE shipments through Aetrix Electronics.
DG304ACWE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Obsolete
- 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:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
DG304ACWE FAQ
1.How can I place an order for DG304ACWE through Aetrix?
Please submit a Request for Quotation (RFQ) for DG304ACWE 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 DG304ACWE reliable?
The price and inventory of DG304ACWE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG304ACWE is usually 5 days.
3.What payment methods are accepted for DG304ACWE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG304ACWE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG304ACWE?
DG304ACWE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG304ACWE 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 DG304ACWE?
For technical support, including DG304ACWE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG304ACWE requirements.
6.How does Aetrix verify that DG304ACWE is sourced from the original manufacturer or authorized distributors?
All DG304ACWE 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 DG304ACWE meets industry standards.
7.What is the process for return or replacement of DG304ACWE?
All DG304ACWE units undergo pre-shipment inspection (PSI). If there is an issue with DG304ACWE, 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 DG304ACWE part is unused and in its original packaging.
Return procedure for DG304ACWE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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