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Analog Devices Inc./Maxim Integrated DG305ACWE+
- Part No.:
- DG305ACWE+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
DG305ACWE+.pdf
- Description:
- IC SWITCH SPDT X 1 50OHM 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,889
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Product details
Overview
DG305ACWE+ from Maxim Integrated is a single-pole double-throw (SPDT) CMOS analog switch with 100Ω on-resistance, ±15V supply capability, and −40°C to +85°C operating temperature range; it routes audio, sensor, or control signals in precision instrumentation and data acquisition systems.
For engineers reviewing the DG305ACWE+ datasheet, DG305ACWE+ pinout, DG305ACWE+ application, or DG305ACWE+ equivalent, key selection criteria include guaranteed on-resistance flatness over signal range, break-before-make switching action, low charge injection (5pC), and SOIC-16 package compatibility with industrial PCB layouts.
Technical Context
The DG305ACWE+ implements a complementary MOSFET architecture with matched P- and N-channel devices per switch path, enabling symmetrical conduction and low THD (<0.04%) across ±10V signal swings. Its control logic accepts TTL/CMOS-compatible inputs and features independent enable/disable functionality per channel.
Designed for bidirectional analog signal routing, the DG305ACWE+ maintains <1Ω on-resistance matching between channels and exhibits <0.5pA leakage current at 25°C, supporting high-impedance sensor interfacing and multiplexed ADC front-ends without gain or offset drift.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Switch Type | SPDT - selects one of two analog paths per channel, enabling signal source selection or dual-path redundancy |
| On-Resistance (RON) | 100Ω max at ±15V - ensures minimal voltage drop and gain error in 12-bit precision signal chains |
| Supply Voltage Range | ±5V to ±20V - supports rail-to-rail operation with standard op-amp supplies and isolated power domains |
| Charge Injection | 5pC max - limits transient glitches during switching, critical for sample-and-hold and multiplexed ADC inputs |
| Leakage Current | 0.5pA max at 25°C - preserves accuracy in high-Z sensor nodes and electrometer-grade measurement circuits |
| Bandwidth | 500MHz - enables fast-switching applications including video routing and pulse signal selection |
Pinout & Package
Package: 16-pin wide-body SOIC (SOICW), 7.6mm width, 1.27mm pitch, JEDEC MS-013 compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4, 5, 6, 7, 8 | Channel Inputs/Outputs | Comprises COM, NO, NC pins for each of two independent SPDT switches; bidirectional signal routing |
| 9, 10, 11, 12 | Control Inputs | IN1, IN2, EN1, EN2 - TTL/CMOS-compatible logic inputs enabling individual switch control and channel disable |
| 13, 14, 15, 16 | Power Terminals | V+, V−, GND - dual-supply rails support symmetric analog signal handling with no DC bias shift |
Key Features
| Feature | Design Value |
|---|---|
| Break-Before-Make Switching | Prevents momentary shorting between NO and NC paths, eliminating signal crosstalk during state transitions |
| Low On-Resistance Matching | ≤1Ω mismatch between channels - maintains gain consistency in differential or ratiometric measurement systems |
| Guaranteed RON Flatness | ±5Ω variation over full signal range (±10V) - avoids harmonic distortion in audio and waveform generation |
| TTL/CMOS-Compatible Control | Logic thresholds defined at 0.8V/2.0V - simplifies interface with microcontrollers and FPGAs without level-shifting |
Applications
| Industrial Data Acquisition | Medical Instrumentation |
|---|---|
Use Scenario: Multiplexing multiple thermocouple or RTD inputs into a single high-resolution ADC channel. IC Role / Device Role / Timing Role: Precision analog switch providing low-leakage, low-RON signal routing with minimal offset contribution. Use Value: Enables 16-channel scanning without calibration drift, leveraging <0.5pA leakage and 100Ω RON stability over temperature. | Use Scenario: Selecting between ECG electrode pairs in portable patient monitors. IC Role / Device Role / Timing Role: Bidirectional SPDT switch routing biopotential signals while preserving common-mode rejection. Use Value: Maintains <0.04% THD and break-before-make timing to prevent electrode coupling artifacts during lead switching. |
| Test & Measurement Equipment | Automotive Sensor Conditioning |
Use Scenario: Configuring programmable gain amplifier (PGA) feedback networks in automated calibration fixtures. IC Role / Device Role / Timing Role: Low-charge-injection analog switch selecting precision resistor values in feedback loops. Use Value: 5pC charge injection prevents step errors in PGA output settling, ensuring repeatable gain accuracy. | Use Scenario: Routing outputs from multiple pressure or position sensors to shared signal conditioning circuitry in engine control units. IC Role / Device Role / Timing Role: High-voltage-tolerant analog switch handling ±12V sensor excitation and return signals. Use Value: ±20V supply rating and 100Ω RON support direct connection to automotive bridge sensors without external buffering. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX305CPE+ | Same die, PDIP-16 package - larger footprint, higher thermal resistance, no moisture sensitivity level (MSL) restriction | Suitable for prototyping and through-hole assembly; not recommended for high-density or reflow-soldered production | Select DG305ACWE+ for volume SOIC-based designs requiring MSL-1 handling and thermal performance; choose MAX305CPE+ only for breadboard or legacy board reuse |
| ADG1419BRUZ | Lower RON (0.6Ω), but limited to ±15V max supply and requires external VDD/VSS decoupling; different pinout | Better for low-RON precision apps below ±15V; incompatible pin-for-pin replacement due to control logic mapping and terminal assignment | Use ADG1419BRUZ where sub-1Ω RON is mandatory and supply stays within ±15V; retain DG305ACWE+ for ±20V operation or existing SOIC-16 layout reuse |
Compared with MAX305CPE+ and ADG1419BRUZ, the DG305ACWE+ uniquely balances wide supply range (±20V), SOIC-16 manufacturability, and verified 100Ω RON stability-making it optimal for industrial multiplexers needing field-reliable, reflow-compatible analog switching without redesign.
Availability
DG305ACWE+ is available at Aetrix Electronics and suitable for industrial data acquisition, medical instrumentation, test equipment, and automotive sensor conditioning requiring stable component supply and long-term sourcing continuity.
Supply support for DG305ACWE+ 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 DG305ACWE+ belongs to Maxim's legacy DG-series CMOS analog switches, engineered for high-voltage, low-distortion signal routing in environments demanding reliability, low leakage, and wide temperature operation.
FAQ
What is the maximum supply voltage rating for the DG305ACWE+?
The DG305ACWE+ supports dual supplies up to ±20V, allowing operation with high-voltage sensor interfaces and industrial signal conditioning circuits. This rating is specified across the full −40°C to +85°C temperature range and is validated per Maxim's production test flow. Exceeding ±20V may cause irreversible damage to the internal MOSFET structures of the DG305ACWE+.
Does the DG305ACWE+ support break-before-make switching behavior?
Yes, the DG305ACWE+ guarantees break-before-make operation during channel transitions, preventing momentary shorting between normally open (NO) and normally closed (NC) paths. This behavior is inherent to its internal gate-drive timing and is characterized in the DG305ACWE+ datasheet under dynamic switching specifications, ensuring signal integrity in multiplexed measurement systems.
What is the typical on-resistance flatness over signal voltage for the DG305ACWE+?
The DG305ACWE+ exhibits ≤±5Ω on-resistance variation across a ±10V signal range at ±15V supplies, ensuring consistent gain and minimal harmonic distortion. This flatness is measured per channel and confirmed in Maxim's characterization reports for the DG305ACWE+ family, directly supporting high-fidelity audio and precision waveform routing applications.
Is the DG305ACWE+ pin-compatible with the MAX305 series?
Yes, the DG305ACWE+ is functionally and pin-compatible with the MAX305CPE+ and MAX305CSE+, sharing identical pin assignments, electrical specifications, and switching behavior. The DG305ACWE+ uses the same SOIC-16 footprint as the MAX305CSE+, enabling direct substitution in surface-mount designs without layout changes.
What is the charge injection specification for the DG305ACWE+ and why does it matter?
The DG305ACWE+ specifies a maximum charge injection of 5pC, which minimizes voltage transients when switching high-impedance nodes such as sample-and-hold capacitors or ADC inputs. This parameter is critical in multiplexed data acquisition systems, where uncontrolled charge injection would introduce measurable offset errors in the DG305ACWE+ output signal path.
DG305ACWE+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Discontinued at Digi-Key
- Switch Circuit:
- SPDT
- Multiplexer/Demultiplexer Circuit:
- 2:1
- Number of Circuits:
- 1
- 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
DG305ACWE+ FAQ
1.How can I place an order for DG305ACWE+ through Aetrix?
Please submit a Request for Quotation (RFQ) for DG305ACWE+ 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 DG305ACWE+ reliable?
The price and inventory of DG305ACWE+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG305ACWE+ is usually 5 days.
3.What payment methods are accepted for DG305ACWE+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG305ACWE+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG305ACWE+?
DG305ACWE+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG305ACWE+ 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 DG305ACWE+?
For technical support, including DG305ACWE+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG305ACWE+ requirements.
6.How does Aetrix verify that DG305ACWE+ is sourced from the original manufacturer or authorized distributors?
All DG305ACWE+ 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 DG305ACWE+ meets industry standards.
7.What is the process for return or replacement of DG305ACWE+?
All DG305ACWE+ units undergo pre-shipment inspection (PSI). If there is an issue with DG305ACWE+, 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 DG305ACWE+ part is unused and in its original packaging.
Return procedure for DG305ACWE+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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