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Analog Devices Inc./Maxim Integrated DG303ABWE+
- Part No.:
- DG303ABWE+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
DG303ABWE+.pdf
- Description:
- IC SWITCH SPDT X 2 50OHM 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,808
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Product details
Overview
DG303ABWE+ from Maxim Integrated is a dual SPDT CMOS analog switch optimized for low-power, precision signal routing in bipolar supply systems. It features <50Ω on-resistance, ±15V analog signal range (V+ to V−), 150ns turn-on time, break-before-make switching, and TTL/CMOS-compatible control inputs - enabling reliable operation in portable instrumentation and programmable gain amplifier circuits.
For engineers reviewing the DG303ABWE+ datasheet, DG303ABWE+ pinout, DG303ABWE+ application, or DG303ABWE+ equivalent, key selection criteria include dual SPDT topology, wide ±5V to ±18V supply support, low charge injection (12pC), guaranteed -25°C to +85°C operation, and 16-lead wide SOIC package compatibility with space-constrained PCB layouts.
Technical Context
The DG303ABWE+ implements monolithic CMOS switch architecture with latchup-proof construction and substrate-isolated P-well/N-well design. Its dual SPDT configuration provides independent channel control via IN1/IN2 logic inputs, each driving one pole-to-throw pair (S1/D1/D2 and S2/D3/D4) with break-before-make timing of 50ns.
Signal integrity is maintained through low off-capacitance (14pF per terminal), high off-isolation (62dB), and minimal crosstalk (74dB at 500kHz). The device supports single-supply operation (V− = GND) and tolerates analog signals spanning the full V+ to V− rail - critical for ±15V data acquisition front-ends.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Analog Signal Range | ±15V - enables rail-to-rail analog signal switching without clipping in ±15V op-amp systems |
| On-Resistance (RDS(ON)) | <50Ω - ensures minimal signal attenuation and gain error in precision attenuator or PGA paths |
| Turn-On Time (tON) | 150ns - supports sampling rates up to ~3MHz in low-power sample-and-hold circuits |
| Charge Injection | 12pC - limits voltage glitch to <1.2mV on 10nF hold capacitors, preserving ADC accuracy |
| Off-Leakage Current | <1nA at ±14V - prevents DC error accumulation in high-impedance sensor multiplexing |
| Supply Range | ±5V to ±18V - allows direct integration into legacy industrial ±12V or ±15V power domains |
| Logic Compatibility | TTL and CMOS - eliminates level-shifting requirements when interfacing with microcontrollers or FPGAs |
Pinout & Package
Package: 16-lead wide SOIC (SOICW), 7.6mm × 10.3mm body, 1.27mm pitch, RoHS-compliant, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4, 5, 6, 7, 9, 10, 11, 12, 13, 14, 15 | No Connect (N.C.) | Internally unconnected; must remain floating or tied to GND per layout guidelines |
| 8 | GND | Ground reference for logic inputs and internal bias network |
| 16 | V+ | Positive supply rail; connects to substrate/case for ESD robustness |
| 11 | V− | Negative supply rail; required for bipolar operation or tied to GND for single-supply mode |
| 5, 10 | IN1, IN2 | Active-high TTL/CMOS logic inputs controlling SPDT switching states |
| 3, 6, 12, 15 | S1, D1, D2, S2 | Switch terminals: S1/S2 = common poles; D1/D2/D3/D4 = throw contacts |
| 1, 2, 13, 14 | D3, D4, N.C., N.C. | D3/D4 complete second SPDT path; pins 1/2/13/14 are no-connect in DG303ABWE+ |
Key Features
| Feature | Design Value |
|---|---|
| Break-Before-Make Switching | 50ns interval prevents momentary short-circuit between throws during state transition |
| Low Charge Injection (12pC) | Minimizes hold capacitor voltage disturbance in sample-and-hold amplifiers |
| Wide Analog Signal Range (±15V) | Supports direct interface with ±12V/±15V op-amps and DACs without external clamping |
| Latchup-Proof CMOS Process | Guarantees immunity to destructive latchup under overvoltage or ESD stress conditions |
| Single-Supply Capability | V− pin tied to GND enables operation from +10V to +30V supplies - simplifies power architecture |
Applications
| Portable Instrumentation | Programmable Gain Amplifier |
|---|---|
Use Scenario: Battery-powered handheld multimeter selecting between voltage, current, and resistance measurement paths. IC Role / Device Role / Timing Role: Dual SPDT analog switch routing input signal to appropriate front-end conditioning circuitry under microcontroller control. Use Value: Low 0.5mA total supply current extends battery life; ±15V signal handling preserves measurement accuracy across ranges. | Use Scenario: Precision sensor signal conditioning where gain is dynamically adjusted via resistor network switching. IC Role / Device Role / Timing Role: DG303ABWE+ selects feedback resistors in op-amp loop to set gain (e.g., 1×, 10×, 100×) without mechanical relays. Use Value: <50Ω RDS(ON) avoids gain error; low leakage (<1nA) prevents offset drift in high-Z feedback networks. |
| Low-Power Sample/Hold | Process Control Telemetry |
Use Scenario: Multi-channel data acquisition system capturing sensor outputs at 100kSPS with minimal power budget. IC Role / Device Role / Timing Role: DG303ABWE+ routes analog inputs to shared sample-and-hold amplifier, synchronized to ADC clock. Use Value: 150ns tON enables fast channel settling; 12pC charge injection maintains sub-12-bit hold accuracy on 10nF capacitors. | Use Scenario: Industrial PLC module multiplexing 4–20mA current loop sensors and thermocouple inputs to a single ADC. IC Role / Device Role / Timing Role: Isolates and routes field signals while maintaining galvanic separation via bipolar supply operation. Use Value: ±15V analog range accommodates sensor excitation voltages; -25°C to +85°C rating ensures reliability in cabinet-mounted environments. |
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 +85°C), 16-lead SOIC package | Requires higher drive strength for same signal fidelity; better suited for extended temperature industrial use | Select ADG403BRZ when operating below -25°C or requiring tighter RDS(ON) matching across temperature |
| TS5A3157DCKR | Single-supply only (+1.65V to +5.5V), lower voltage rating, 6-pin SC70 package | Not suitable for ±15V systems; intended for low-voltage portable logic-level switching | Choose TS5A3157DCKR only for battery-powered 3.3V/5V digital signal routing - not a functional replacement for DG303ABWE+ |
Compared with ADG403BRZ and TS5A3157DCKR, the DG303ABWE+ uniquely supports true bipolar ±15V analog signal routing with sub-50Ω on-resistance and break-before-make timing - making it irreplaceable in precision instrumentation requiring rail-to-rail signal integrity and low-power operation.
Availability
DG303ABWE+ is available at Aetrix Electronics and suitable for portable instrumentation, programmable gain amplifier design, and low-power sample-and-hold circuits requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for DG303ABWE+ 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 high-performance analog and mixed-signal ICs for industrial, automotive, and communications applications.
The DG303ABWE+ belongs to the DG300A family of TTL-compatible CMOS analog switches engineered for low-power, high-fidelity signal routing in battery-operated and precision measurement equipment.
FAQ
What is the maximum analog signal voltage range supported by the DG303ABWE+?
The DG303ABWE+ supports an analog signal range from V− to V+, which spans ±15V when operated with ±15V supplies. This allows rail-to-rail signal switching without clipping - essential for interfacing with standard ±12V or ±15V operational amplifiers and data converters. The device maintains this full range across its specified -25°C to +85°C operating temperature.
Does the DG303ABWE+ require external pull-up or pull-down resistors on its logic inputs?
No, the DG303ABWE+ does not require external pull-up or pull-down resistors. Its IN1 and IN2 inputs are fully TTL and CMOS compatible, with guaranteed logic thresholds of 0.8V (VIL) and 4.0V (VIH) at +15V supply. Input leakage remains below ±1µA, enabling direct connection to microcontroller GPIOs or FPGA I/O banks without additional biasing components.
Can the DG303ABWE+ be used with a single +15V supply instead of dual ±15V?
Yes, the DG303ABWE+ supports single-supply operation: connect V− to GND and apply +15V to V+. In this configuration, the analog signal range becomes 0V to +15V, and logic inputs retain TTL/CMOS compatibility. The device's internal architecture ensures proper channel control and low on-resistance (<50Ω) even in single-supply mode - verified in Table 1 of the datasheet.
What is the purpose of the "break-before-make" feature in the DG303ABWE+?
The break-before-make feature in the DG303ABWE+ enforces a minimum 50ns delay between opening one switch path and closing the alternate path within each SPDT section. This prevents momentary short-circuiting between D1/D2 or D3/D4 terminals during state transitions - critical for avoiding signal corruption or damage in precision multiplexer and relay-replacement applications.
How does the DG303ABWE+ handle charge injection during switching, and why does it matter?
The DG303ABWE+ specifies 12pC typical charge injection, measured with CL = 10nF and zero-source impedance. This injected charge causes a transient voltage glitch on hold capacitors in sample-and-hold circuits; for a 10nF capacitor, the resulting error is ≤1.2mV. Low charge injection is essential to preserve DC accuracy and avoid settling delays - a key differentiator for high-resolution data acquisition systems using the DG303ABWE+.
DG303ABWE+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Active
- 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):
- 300ns, 250ns
- -3db Bandwidth:
- -
- Charge Injection:
- 12pC
- Channel Capacitance (CS(off), CD(off)):
- 14pF, 14pF
- Current - Leakage (IS(off)) (Max):
- 5nA
- Crosstalk:
- -74dB @ 500kHz
- Operating Temperature:
- -25°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
DG303ABWE+ FAQ
1.How can I place an order for DG303ABWE+ through Aetrix?
Please submit a Request for Quotation (RFQ) for DG303ABWE+ 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 DG303ABWE+ reliable?
The price and inventory of DG303ABWE+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG303ABWE+ is usually 5 days.
3.What payment methods are accepted for DG303ABWE+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG303ABWE+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG303ABWE+?
DG303ABWE+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG303ABWE+ 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 DG303ABWE+?
For technical support, including DG303ABWE+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG303ABWE+ requirements.
6.How does Aetrix verify that DG303ABWE+ is sourced from the original manufacturer or authorized distributors?
All DG303ABWE+ 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 DG303ABWE+ meets industry standards.
7.What is the process for return or replacement of DG303ABWE+?
All DG303ABWE+ units undergo pre-shipment inspection (PSI). If there is an issue with DG303ABWE+, 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 DG303ABWE+ part is unused and in its original packaging.
Return procedure for DG303ABWE+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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