My Inquiry
My Account
Analog Devices Inc./Maxim Integrated DG303ACWE+T
- Part No.:
- DG303ACWE+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
DG303ACWE+T.pdf
- Description:
- IC SWITCH SPDT X 2 50OHM 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,311
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
DG303ACWE+T 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, 150ns turn-on time, ±15V analog signal range (V+ to V−), break-before-make switching, and TTL/CMOS-compatible control inputs - enabling reliable use in portable instrumentation and programmable gain amplifiers.
For engineers reviewing the DG303ACWE+T datasheet, DG303ACWE+T pinout, DG303ACWE+T application, or DG303ACWE+T equivalent, this device serves as a pin-compatible second-source replacement for legacy dual SPDT analog switches requiring rail-to-rail analog handling, low charge injection (12pC), and operation across ±5V to ±18V supplies.
Technical Context
The DG303ACWE+T implements two independent SPDT switches using monolithic CMOS process technology with latchup-proof construction. Each switch supports bidirectional analog signals spanning the full V+ to V− rails, with guaranteed break-before-make timing of 50ns to prevent transient shorting during state transitions.
Its control logic accepts standard TTL/CMOS voltage levels (0.8V/4.0V thresholds), draws only 0.5mA positive supply current at +25°C, and maintains channel-to-channel on-resistance matching within 10% - critical for precision multiplexing and sample/hold circuits where gain error and signal integrity must be tightly controlled.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Analog Signal Range | ±15V (V+ to V−) - supports rail-to-rail AC/DC signal switching without clipping |
| On-Resistance (RDS(ON)) | <50Ω typical - minimizes insertion loss and gain error in precision amplifier paths |
| Turn-On Time (tON) | 150ns max - enables high-speed multiplexing in data acquisition systems up to ~3MHz |
| Charge Injection | 12pC - limits voltage glitch in sample/hold capacitors, reducing settling error |
| Off-Isolation | 62dB - suppresses crosstalk between active and inactive channels at 500kHz |
| Supply Voltage Range | ±5V to ±18V - accommodates industrial and battery-powered designs with wide headroom |
| Input Logic Compatibility | TTL and CMOS - interfaces directly with microcontrollers, FPGAs, and logic families without level shifters |
Pinout & Package
Package: 16-lead wide SOIC (SOIC-W), 7.6mm × 10.3mm body, 1.27mm lead pitch, RoHS-compliant, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4 | Switch Inputs (D1–D4) | Drain terminals for SPDT channels; bidirectional analog I/O nodes |
| 5, 6, 7, 8 | Switch Outputs (S1–S4) | Source terminals; connect to common signal path or load |
| 9, 10 | Control Inputs (IN1, IN2) | Active-high TTL/CMOS logic inputs controlling respective SPDT switches |
| 11 | GND | Logic ground reference; must be tied to system digital ground |
| 12 | V− | Negative supply rail; sets lower bound of analog signal range |
| 13 | V+ | Positive supply rail; sets upper bound of analog signal range |
| 14–16 | No Connect (N.C.) | Internally unconnected; must remain floating or grounded per layout best practice |
Key Features
| Feature | Design Value |
|---|---|
| Break-Before-Make Switching | Guaranteed 50ns interval prevents momentary short-circuit between throw positions |
| Latchup-Proof CMOS Construction | Immune to destructive latchup under overvoltage or ESD stress per JEDEC JESD78 |
| Low Charge Injection (12pC) | Minimizes voltage step error on sampling capacitors in precision ADC front-ends |
| Rail-to-Rail Analog Range | Signals swing fully from V− to V+ - eliminates need for external biasing networks |
| Single-Supply Operation Support | V− tied to GND enables +10V to +30V unipolar supply use without redesign |
Applications
| Portable Instrumentation | Programmable Gain Amplifiers |
|---|---|
Use Scenario: Battery-powered handheld multimeters and oscilloscopes require low-quiescent-current analog routing with minimal signal distortion. IC Role / Device Role / Timing Role: Dual SPDT switch selects input attenuation/gain paths and reference voltages under microcontroller control. Use Value: <50Ω RDS(ON) and 62dB off-isolation preserve measurement accuracy across ranges; 0.5mA I+ enables >100-hour battery life. |
Use Scenario: Precision sensor signal conditioning circuits dynamically adjust gain via switched resistor networks. IC Role / Device Role / Timing Role: DG303ACWE+T routes feedback resistors into op-amp loops while maintaining low parasitic capacitance. Use Value: 40pF channel ON-capacitance and 10% RDS(ON) matching minimize gain error and phase shift across gain steps. |
| Low-Power Sample/Hold Circuits | Process Control Telemetry |
Use Scenario: Remote environmental sensors use ultra-low-power sampling to extend wireless node lifetime. IC Role / Device Role / Timing Role: DG303ACWE+T connects sensor output to hold capacitor with minimal charge injection. Use Value: 12pC charge injection reduces hold-step error to <1LSB in 12-bit systems; break-before-make prevents capacitor discharge glitches. |
Use Scenario: Industrial PLC analog input modules condition multiple 4–20mA or ±10V field signals before digitization. IC Role / Device Role / Timing Role: DG303ACWE+T multiplexes calibrated reference voltages and sensor inputs onto shared ADC channels. Use Value: ±15V analog range handles industrial signal extremes; -100nA max leakage at temperature ensures long-term offset stability. |
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 RDS(ON) (60Ω typ), slower tON (200ns), no break-before-make guarantee | Less suitable for precision sample/hold; acceptable for general-purpose multiplexing | Prefer DG303ACWE+T when charge injection & timing control are critical |
| MAX4617ESE+ | Lower supply range (±5V to ±20V), higher leakage (±200nA at temp), same SOIC-16 package | Better for high-voltage industrial use but less stable in battery-powered low-leakage designs | Choose DG303ACWE+T for portable instruments needing sub-100nA leakage at +85°C |
Compared with ADG403BRZ and MAX4617ESE+, the DG303ACWE+T delivers tighter on-resistance matching, guaranteed break-before-make timing, and lower charge injection - making it optimal for precision, low-power, and rail-to-rail analog routing where signal fidelity and power efficiency are jointly constrained.
Availability
DG303ACWE+T is available at Aetrix Electronics and suitable for portable instrumentation, programmable gain amplifiers, and low-power sample/hold circuits requiring stable component supply, long-lifecycle support, and consistent parametric performance across temperature.
Supply support for DG303ACWE+T 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 applications.
The DG303ACWE+T belongs to Maxim's DG300–DG303 family of TTL-compatible CMOS analog switches, engineered specifically for low-power, high-fidelity signal routing in battery-operated and rail-to-rail systems.
FAQ
What is the maximum supply voltage rating for DG303ACWE+T?
The DG303ACWE+T supports dual-supply operation from ±5V to ±18V. Absolute maximum ratings specify V+ ≤ 36V (DG303 series) and V− ≥ -36V. Exceeding ±18V risks exceeding internal junction limits and is not recommended for reliable operation. Always observe derating curves in the datasheet for extended temperature operation.
Does DG303ACWE+T support single-supply operation?
Yes, DG303ACWE+T supports single-supply operation by connecting V− to GND. With V+ set to +10V to +30V, the analog signal range becomes 0V to V+, and logic inputs remain compatible with standard TTL/CMOS levels. Table 1 in the datasheet confirms tON improves to 70ns at +30V supply.
What is the pin configuration of DG303ACWE+T?
DG303ACWE+T uses a 16-pin wide SOIC package with dual SPDT topology: pins 1–4 = D1–D4 (drains), pins 5–8 = S1–S4 (sources), pins 9–10 = IN1/IN2 (control), pin 11 = GND, pin 12 = V−, pin 13 = V+, and pins 14–16 = N.C. Pinout matches DG303CWE and DG303BWE variants per Maxim's ordering table.
How does break-before-make timing work in DG303ACWE+T?
DG303ACWE+T guarantees a minimum 50ns break interval between turn-off of one switch path and turn-on of the alternate path within each SPDT section. This prevents momentary short-circuiting of analog sources during state transitions - critical in programmable gain and multiplexer applications where signal integrity must be preserved.
What is the typical on-resistance matching between channels in DG303ACWE+T?
Typical on-resistance matching between the two SPDT channels of DG303ACWE+T is 10%, meaning RDS(ON) variation across channels remains within ±5% of nominal value under matched conditions. This tight matching ensures consistent gain and attenuation in differential or multi-path signal chains.
DG303ACWE+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- 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:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
DG303ACWE+T FAQ
1.How can I place an order for DG303ACWE+T through Aetrix?
Please submit a Request for Quotation (RFQ) for DG303ACWE+T 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 DG303ACWE+T reliable?
The price and inventory of DG303ACWE+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG303ACWE+T is usually 5 days.
3.What payment methods are accepted for DG303ACWE+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG303ACWE+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG303ACWE+T?
DG303ACWE+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG303ACWE+T 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 DG303ACWE+T?
For technical support, including DG303ACWE+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG303ACWE+T requirements.
6.How does Aetrix verify that DG303ACWE+T is sourced from the original manufacturer or authorized distributors?
All DG303ACWE+T 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 DG303ACWE+T meets industry standards.
7.What is the process for return or replacement of DG303ACWE+T?
All DG303ACWE+T units undergo pre-shipment inspection (PSI). If there is an issue with DG303ACWE+T, 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 DG303ACWE+T part is unused and in its original packaging.
Return procedure for DG303ACWE+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DG303ACWE+T Tags
-
SN74LVC1G3157DBVR
Texas Instruments
-
SN74LVC1G66DBVR
Texas Instruments
-
SN74LVC1G66DCKR
Texas Instruments
-
SN74LVC1G3157DSFR
Texas Instruments
-
1P1G3157QDCKRQ1
Texas Instruments
-
SN74LVC2G66DCUR
Texas Instruments
-
SN74LV4052APWR
Texas Instruments
-
74HC4051D,653
Nexperia USA Inc.
-
SN74LV4051APWR
Texas Instruments
-
CD74HC4052PWR
Texas Instruments
-
CD74HC4051PWR
Texas Instruments
-
TS5A3166DBVR
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
