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Analog Devices Inc./Maxim Integrated DG407CWI+
- Part No.:
- DG407CWI+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 28-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
DG407CWI+.pdf
- Description:
- IC MUX DUAL 8:1 100OHM 28SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,183
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Product details
Overview
DG407CWI+ from Maxim Integrated is a dual 8-channel CMOS analog multiplexer/demultiplexer designed for bidirectional signal routing in precision analog systems. It features guaranteed on-resistance matching ≤8Ω, flatness ≤9Ω, low charge injection ≤15pC, and operates from ±4.5V to ±20V dual supplies or +5V to +30V single supply - enabling use in data-acquisition front-ends and test equipment switching matrices.
For engineers reviewing the DG407CWI+ datasheet, DG407CWI+ pinout, DG407CWI+ application, or DG407CWI+ equivalent, key selection criteria include channel-to-channel RON matching, charge injection impact on sample-and-hold accuracy, rail-to-rail analog signal handling up to ±20V, and compatibility with TTL/CMOS logic control levels.
Technical Context
The DG407CWI+ implements a fully differential dual 8:1 architecture with independent address decoding (A0–A2) and shared enable (EN) per 8-channel block. Each switch supports bidirectional conduction with symmetrical on-resistance characteristics across the full analog signal range (±10V typical at ±15V supplies).
Its internal CMOS transmission-gate design guarantees low leakage (<5nA at +85°C), high off-isolation (−69dB), and low crosstalk (−92dB), making it suitable for high-fidelity signal routing where channel integrity and minimal transient error are critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-Resistance (RDS(ON)) | 100Ω max - ensures minimal signal attenuation and gain error in precision gain-setting or sensor-mux paths |
| On-Resistance Matching | 8Ω max - enables accurate ratiometric measurements across channels without calibration |
| On-Resistance Flatness | 9Ω max - maintains consistent gain and linearity over full ±10V analog input range |
| Charge Injection | 15pC max - limits voltage glitch on sample-and-hold capacitors, preserving ADC accuracy |
| Analog Signal Range | ±10V at ±15V supplies - supports rail-to-rail operation with industrial-grade bipolar signal sources |
| Supply Voltage Range | ±4.5V to ±20V dual or +5V to +30V single - allows flexible system-level power architecture integration |
| ESD Protection | >2000V per MIL-STD-883 Method 3015.7 - enhances robustness during board handling and system integration |
Pinout & Package
DG407CWI+ is housed in a 28-pin wide SOIC (Small Outline Integrated Circuit) package with 0.300" body width and standard 1.27mm pitch. Pin assignments follow industry-standard dual 8:1 mux layout with separate I/O banks for each 8-channel section.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| DA, DB | Bidirectional common outputs | Independent analog output terminals for each 8-channel bank; support simultaneous dual-path routing |
| S1A–S8A, S1B–S8B | Bidirectional analog inputs | Two sets of eight analog channels; fully symmetric signal path with identical RON and capacitance specs |
| A0, A1, A2 | Address inputs | 3-bit binary select lines controlling channel connection to DA or DB; TTL/CMOS compatible |
| EN | Enable input | Active-low global enable per bank; controls all eight switches in respective section simultaneously |
| V+, V− | Power supply rails | Supports dual-supply operation down to ±4.5V; V− must be connected even in single-supply mode (V− = GND) |
| GND | Ground reference | Logic and substrate reference; internally tied to V+ substrate in die construction |
| N.C. | No internal connection | Pins 2, 3, 13, 14 - unused; must remain unconnected per datasheet |
Key Features
| Feature | Design Value |
|---|---|
| Pin-compatible upgrade | Direct replacement for legacy DG407 with identical pinout and footprint - no PCB redesign required |
| Rail-to-rail signal handling | Supports analog signals from V− to V+ without clipping - essential for ±15V instrumentation interfaces |
| Guaranteed low leakage | <5nA off-leakage at +85°C - preserves signal integrity in high-impedance sensor or integrator circuits |
| Low power consumption | 1.25mW max - reduces thermal drift and simplifies thermal management in dense layouts |
| Digital input compatibility | TTL/CMOS logic thresholds (VAL ≤ 0.8V, VAH ≥ 2.4V) - interoperable with microcontrollers and FPGAs without level shifters |
Applications
| Sample-and-Hold Circuits | Test Equipment Switching Matrix |
|---|---|
Use Scenario: Multiplexing multiple sensor outputs into a single high-resolution ADC with hold capacitor. IC Role / Device Role / Timing Role: Analog switch selecting one of eight sensor channels before sampling; low charge injection prevents hold-step error. Use Value: 15pC max charge injection minimizes voltage disturbance on 10nF hold capacitors, maintaining 16-bit effective resolution. |
Use Scenario: Automated reconfiguration of signal paths between DUT, instruments, and reference standards in ATE systems. IC Role / Device Role / Timing Role: Dual-bank signal router enabling parallel stimulus/response paths or sequential channel scanning. Use Value: 8Ω max RON matching ensures consistent gain scaling across all 16 channels during calibration sweeps. |
| Guidance and Control Systems | Audio Signal Routing |
Use Scenario: Selecting among redundant inertial measurement unit (IMU) outputs in flight control computers. IC Role / Device Role / Timing Role: Fault-tolerant analog mux providing failover between primary and backup sensor channels. Use Value: −69dB off-isolation prevents coupling of fault currents between active and standby IMU paths. |
Use Scenario: Channel-selectable routing of line-level audio signals in professional mixing consoles. IC Role / Device Role / Timing Role: Low-distortion analog switch enabling silent, glitch-free channel switching under program control. Use Value: 9Ω max RON flatness preserves frequency response flatness across ±2V audio swing without tone coloration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADG407BRZ | Higher on-resistance (120Ω typ), wider temp range (−40°C to +85°C), same 28-SO package | Lower bandwidth due to higher RON × COFF; less suitable for >100kHz signal routing | Preferred when extended temperature operation is required and 20Ω higher RON is acceptable |
| MAX4677EUI+ | Single 8-channel mux (not dual), smaller 16-TSSOP package, lower charge injection (5pC max) | Lacks second independent mux bank; requires two devices for dual-path functionality | Select when board space is constrained and only one 8-channel path is needed with ultra-low charge injection |
Compared with ADG407BRZ and MAX4677EUI+, the DG407CWI+ uniquely delivers dual independent 8:1 routing in a single 28-SO package with best-in-class RON matching (≤8Ω) - optimizing channel consistency for ratiometric sensing and calibration-critical systems.
Availability
DG407CWI+ is available at Aetrix Electronics and suitable for data-acquisition systems, automated test equipment, and guidance and control systems requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for DG407CWI+ 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, communications, and computing applications.
The DG407CWI+ belongs to Maxim's precision analog multiplexer product line, engineered for applications demanding low distortion, high channel uniformity, and robust operation across wide supply and temperature ranges.
FAQ
What is the operating temperature range for DG407CWI+?
The DG407CWI+ is rated for 0°C to +70°C ambient operation. This commercial-grade temperature range aligns with its "C" suffix designation and is validated across all electrical specifications including on-resistance matching, leakage current, and switching timing parameters.
Does DG407CWI+ support single-supply operation?
Yes, DG407CWI+ supports +5V to +30V single-supply operation. When used in this mode, V− must be connected to GND. The analog signal range becomes 0V to V+, and performance metrics such as RON and charge injection remain within datasheet limits per the single-supply characterization tables.
Is DG407CWI+ pin-compatible with the original DG407?
Yes, DG407CWI+ is explicitly designed as a pin-compatible plug-in upgrade for the industry-standard DG407. Its 28-pin wide SOIC footprint, pin functions, and logic interface match exactly - enabling drop-in replacement without layout changes or firmware updates.
What is the maximum analog signal voltage DG407CWI+ can handle?
DG407CWI+ supports analog signals from V− to V+. With ±15V dual supplies, the usable range is ±10V (as specified in the Electrical Characteristics table). Exceeding this range risks increased distortion and reduced off-isolation, though absolute maximum ratings allow up to ±20V on V+ and V− rails.
How does DG407CWI+ manage charge injection in sample-and-hold applications?
DG407CWI+ guarantees ≤15pC maximum charge injection, measured under standardized conditions (VD = ±10V, VS = 0V). This low value directly limits the voltage step induced on hold capacitors - for example, causing only ~1.5mV error on a 10nF capacitor - preserving accuracy in precision data acquisition using DG407CWI+.
DG407CWI+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Active
- Switch Circuit:
- -
- Multiplexer/Demultiplexer Circuit:
- 8:1
- Number of Circuits:
- 2
- On-State Resistance (Max):
- 100Ohm
- Channel-to-Channel Matching (ΔRon):
- 1.5Ohm
- Voltage - Supply, Single (V+):
- 5V ~ 30V
- Voltage - Supply, Dual (V±):
- ±4.5V ~ 20V
- Switch Time (Ton, Toff) (Max):
- 200ns, 150ns
- -3db Bandwidth:
- -
- Charge Injection:
- 2pC
- Channel Capacitance (CS(off), CD(off)):
- 8pF, 65pF
- Current - Leakage (IS(off)) (Max):
- 500pA
- Crosstalk:
- -92dB @ 100kHz
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 28-SOIC
DG407CWI+ FAQ
1.How can I place an order for DG407CWI+ through Aetrix?
Please submit a Request for Quotation (RFQ) for DG407CWI+ 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 DG407CWI+ reliable?
The price and inventory of DG407CWI+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG407CWI+ is usually 5 days.
3.What payment methods are accepted for DG407CWI+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG407CWI+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG407CWI+?
DG407CWI+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG407CWI+ 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 DG407CWI+?
For technical support, including DG407CWI+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG407CWI+ requirements.
6.How does Aetrix verify that DG407CWI+ is sourced from the original manufacturer or authorized distributors?
All DG407CWI+ 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 DG407CWI+ meets industry standards.
7.What is the process for return or replacement of DG407CWI+?
All DG407CWI+ units undergo pre-shipment inspection (PSI). If there is an issue with DG407CWI+, 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 DG407CWI+ part is unused and in its original packaging.
Return procedure for DG407CWI+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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