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Analog Devices Inc./Maxim Integrated DG303AEWE+
- Part No.:
- DG303AEWE+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
DG303AEWE+.pdf
- Description:
- IC SWITCH SPDT X 2 50OHM 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,740
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Product details
Overview
DG303AEWE+ 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 DG303AEWE+ datasheet, DG303AEWE+ pinout, DG303AEWE+ application, or DG303AEWE+ equivalent, key selection criteria include dual SPDT topology, wide ±5V to ±18V supply compatibility, low charge injection (12pC), guaranteed -25°C to +85°C operating range, and 16-lead wide SOIC package with verified pin mapping.
Technical Context
The DG303AEWE+ implements monolithic CMOS switch architecture with latchup-proof construction and fully independent channel control logic. Each SPDT section supports rail-to-rail analog signal switching across the full V+ to V− range, with matched on-resistance (<10% channel-to-channel variation) and low temperature coefficient (0.5%/°C).
Break-before-make timing is guaranteed at 50ns (tON – tOFF) for DG303A-series devices, preventing signal shorting during state transitions. Charge injection is tightly controlled (12pC typical, ±15V supplies) via optimized gate drive and substrate biasing, critical for sample-and-hold accuracy.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Analog Signal Range | ±15V - supports rail-to-rail signal switching without clipping when V+ = +15V, V− = −15V |
| On-Resistance (RDS(ON)) | <50Ω - ensures minimal voltage drop and signal attenuation in low-level analog paths |
| Turn-On Time (tON) | 150ns - enables fast multiplexing in data acquisition systems up to ~3MHz effective rate |
| Charge Injection | 12pC - limits hold-mode error in precision sample-and-hold circuits with 10nF capacitors |
| Supply Range | ±5V to ±18V - allows flexible dual-supply design or single-supply operation (V− = GND, V+ = +10V to +30V) |
| Operating Temperature | −25°C to +85°C - qualified for industrial-grade embedded systems and portable test equipment |
| Off-Leakage Current | <1nA (ID(OFF), IS(OFF)) - preserves signal integrity in high-impedance sensor interfaces |
Pinout & Package
Package: 16-lead wide SOIC (SOIC-W), 7.6mm × 10.3mm body, 1.27mm lead pitch, RoHS-compliant, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4 | Switch Inputs (D1–D4) | Drain terminals of four MOSFET switches - connect to analog signal sources or destinations |
| 5, 6, 11, 12 | Switch Outputs (S1–S4) | Source terminals - form two independent SPDT paths (S1/D1/D2 and S3/D3/D4) |
| 7, 10 | Control Inputs (IN1, IN2) | TTL/CMOS-compatible logic inputs - high = ON path selected, low = OFF path selected |
| 8 | GND | Logic reference and substrate tie - must be connected to system ground |
| 9 | V− | Negative supply rail - required for bipolar operation; tied to GND for single-supply use |
| 13, 14, 15, 16 | No Connect (N.C.) | Internally unused pins - must remain unconnected per datasheet guidance |
| 16 | V+ | Positive supply rail - powers internal logic and switch driver circuitry |
Key Features
| Feature | Design Value |
|---|---|
| Break-Before-Make Switching | Guaranteed 50ns interval prevents momentary shorting between SPDT throw positions |
| Latchup-Proof CMOS Process | Immune to destructive latchup under overvoltage or ESD stress in industrial environments |
| Single-Supply Capability | Operates with V− = GND and V+ = +10V to +30V - simplifies power architecture in battery-powered designs |
| Low Charge Injection (12pC) | Minimizes voltage step error in capacitor-coupled sample-and-hold stages |
| Full Rail-to-Rail Analog Range | Switches signals from V− to V+ without distortion - essential for ±12V instrumentation front-ends |
Applications
| Portable Instruments | Programmable Gain Amplifiers |
|---|---|
Use Scenario: Handheld multimeters and oscilloscope probes requiring low-leakage, low-distortion signal path selection across multiple ranges. IC Role / Device Role / Timing Role: Dual SPDT analog switch routing input signals to different attenuator/gain stages with break-before-make isolation. Use Value: <50Ω RDS(ON) and <1nA off-leakage preserve measurement accuracy; 150ns switching enables rapid auto-ranging. | Use Scenario: Precision op-amp-based gain-setting networks where feedback resistor taps are selected dynamically. IC Role / Device Role / Timing Role: Low-capacitance (14pF off-capacitance), low-charge-injection switch selecting between discrete gain resistors. Use Value: 12pC charge injection avoids output settling errors; rail-to-rail signal handling supports ±10V input ranges. |
| Low-Power Sample/Holds | Process Control and Telemetry |
Use Scenario: Battery-operated data loggers capturing sensor outputs (e.g., thermocouples, strain gauges) at sub-mW power budgets. IC Role / Device Role / Timing Role: Analog switch isolating hold capacitor from input source during acquisition phase with minimal charge kickback. Use Value: 12pC charge injection limits hold-step error to <120µV on 10nF capacitor; <0.5mA total supply current extends battery life. | Use Scenario: Remote I/O modules multiplexing multiple 4–20mA current-loop sensors or RTD bridges into a single ADC channel. IC Role / Device Role / Timing Role: High-voltage-tolerant (±18V) SPDT switch routing field signals while rejecting common-mode noise. Use Value: ±15V analog range accommodates sensor excitation voltages; <50Ω on-resistance minimizes loop resistance impact. |
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 |
|---|---|---|---|
| MAX4633ESE+ | Lower on-resistance (15Ω typ), higher supply current (1.5mA), only ±5V to ±15V operation | Better for low-distortion audio routing; less suitable for ±18V industrial signal chains | Select when ultra-low RDS(ON) outweighs supply current and voltage range trade-offs |
| ADG1434BRUZ | Higher bandwidth (180MHz), 3.3V/5V single-supply only, no bipolar support | Optimized for high-speed digital signal routing, not precision DC-coupled analog paths | Choose for high-frequency multiplexing where rail-to-rail bipolar operation is unnecessary |
Compared with MAX4633ESE+ and ADG1434BRUZ, the DG303AEWE+ uniquely balances ±18V operation, <50Ω on-resistance, and 12pC charge injection - making it the preferred choice for industrial portable instruments requiring robust bipolar signal switching without performance compromise.
Availability
DG303AEWE+ is available at Aetrix Electronics and suitable for portable instruments, low-power sample/holds, and process control telemetry requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for DG303AEWE+ 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) is a U.S.-based semiconductor company specializing in high-performance analog, mixed-signal, and power management ICs for industrial, communications, and consumer applications.
The DG300–DG303A family was designed specifically for precision, low-power analog signal routing in battery-operated and industrial instrumentation - emphasizing rail-to-rail switching, low leakage, and robust bipolar supply operation.
FAQ
What is the maximum supply voltage rating for DG303AEWE+?
The DG303AEWE+ supports dual-supply operation up to ±18V (36V total). Its absolute maximum V+ rating is 36V when referenced to V−, and it operates reliably across ±5V to ±18V. For single-supply use, V− must be tied to GND and V+ set between +10V and +30V. Exceeding ±18V may degrade RDS(ON) stability and increase leakage.
Does DG303AEWE+ support break-before-make switching, and is it guaranteed?
Yes, DG303AEWE+ guarantees break-before-make operation with a minimum 50ns interval (tON – tOFF) for both SPDT sections. This is explicitly tested and specified in the datasheet for DG303A-series devices, preventing signal shorting during logic transitions - critical for protecting downstream amplifiers and ADC inputs.
What is the analog signal range supported by DG303AEWE+?
The DG303AEWE+ supports a full analog signal range from V− to V+, meaning signals can swing rail-to-rail across the entire supply span. With ±15V supplies, this delivers ±15V (−15V to +15V) analog handling. The device maintains <50Ω on-resistance and low distortion across this range, confirmed in electrical characteristics tables and typical operating curves.
Can DG303AEWE+ be used with single-supply operation, and how is it configured?
Yes, DG303AEWE+ supports single-supply operation by connecting V− to GND and applying V+ between +10V and +30V. Logic inputs remain TTL/CMOS compatible (0.8V/4.0V thresholds), and analog signals can swing from 0V to V+. Table 1 in the datasheet confirms validated parameters including on-resistance and switching times at +10V, +15V, +20V, and +30V.
What is the charge injection specification for DG303AEWE+, and why does it matter?
DG303AEWE+ specifies 12pC typical charge injection (measured with ±15V supplies, CL = 10nF). This parameter directly impacts hold-mode accuracy in sample-and-hold circuits: for a 10nF capacitor, 12pC injects a 1.2mV step error. Low charge injection is achieved via balanced gate drive and substrate biasing - a key differentiator for precision measurement applications.
DG303AEWE+ 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):
- 300ns, 250ns
- -3db Bandwidth:
- -
- Charge Injection:
- 12pC
- Channel Capacitance (CS(off), CD(off)):
- 14pF, 14pF
- Current - Leakage (IS(off)) (Max):
- 1nA
- Crosstalk:
- -74dB @ 500kHz
- Operating Temperature:
- -25°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
DG303AEWE+ FAQ
1.How can I place an order for DG303AEWE+ through Aetrix?
Please submit a Request for Quotation (RFQ) for DG303AEWE+ 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 DG303AEWE+ reliable?
The price and inventory of DG303AEWE+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG303AEWE+ is usually 5 days.
3.What payment methods are accepted for DG303AEWE+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG303AEWE+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG303AEWE+?
DG303AEWE+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG303AEWE+ 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 DG303AEWE+?
For technical support, including DG303AEWE+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG303AEWE+ requirements.
6.How does Aetrix verify that DG303AEWE+ is sourced from the original manufacturer or authorized distributors?
All DG303AEWE+ 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 DG303AEWE+ meets industry standards.
7.What is the process for return or replacement of DG303AEWE+?
All DG303AEWE+ units undergo pre-shipment inspection (PSI). If there is an issue with DG303AEWE+, 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 DG303AEWE+ part is unused and in its original packaging.
Return procedure for DG303AEWE+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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