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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:1,235
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Product details
Overview
DG407CWI from Maxim Integrated is a dual 8-channel CMOS analog multiplexer/demultiplexer designed for precision signal routing in mixed-signal systems. It features guaranteed channel-to-channel on-resistance matching (≤8Ω), flat on-resistance over signal range (≤9Ω), low charge injection (≤15pC), and operates from ±4.5V to ±20V dual supplies or +5V to +30V single supply. It is widely used in data-acquisition systems requiring rail-to-rail analog signal handling and low leakage.
For engineers reviewing the DG407CWI datasheet, DG407CWI pinout, DG407CWI application, or DG407CWI equivalent, key selection considerations include its dual 8-channel architecture, 100Ω max on-resistance, 5nA max input off-leakage at +85°C, TTL/CMOS-compatible digital control, and 28-pin wide SO package with verified pin compatibility to legacy DG407 variants.
Technical Context
The DG407CWI implements a fully bidirectional, CMOS-based analog switch matrix with two independent 8:1 multiplexing sections (S1A–S8A/DA and S1B–S8B/DB), each controlled by three address lines (A0–A2) and a shared enable (EN). Its internal decoder ensures precise channel selection without overlap or contention.
It supports rail-to-rail analog signal ranges up to ±20V (dual supply) or 0V to +30V (single supply), with guaranteed performance across 0°C to +70°C. ESD protection exceeds 2000V per MIL-STD-883 Method 3015.7, and all leakage parameters are 100% tested at maximum hot temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-resistance (max) | 100Ω - Ensures minimal signal attenuation and voltage drop across selected channels at full rated supply. |
| On-resistance matching (max) | 8Ω - Guarantees consistent gain and offset error across all 8 channels in each section, critical for multi-channel calibration. |
| On-resistance flatness (max) | 9Ω - Maintains stable on-resistance across full analog signal range (±10V), reducing harmonic distortion in AC-coupled paths. |
| Charge injection (max) | 15pC - Limits voltage glitch on sample-and-hold capacitors, enabling ≤12-bit accuracy without additional settling compensation. |
| Input off-leakage (max) | 5nA at +85°C - Preserves high-impedance sensor node integrity and minimizes DC error in precision measurement front-ends. |
| Supply range | ±4.5V to ±20V dual or +5V to +30V single - Supports industrial, test, and audio applications without level-shifting circuitry. |
| Enable turn-on time (typ) | 105ns - Enables fast channel switching in real-time control loops and high-throughput data acquisition. |
Pinout & Package
Package: 28-pin Wide SO (SOIC-W), RoHS-compliant, body width 7.5mm, standard JEDEC MS-013 footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2 | V+, DB | Pin 1: Positive supply input; Pin 2: Bidirectional output B - powers both sections and delivers switched signal from second 8-channel bank. |
| 3, 13, 14 | N.C. | No internal connection - must be left unconnected; no pull-up/down or bypass required. |
| 4–11 | S8B–S1B | Bidirectional analog inputs for second 8-channel section - support symmetric signal routing in differential or single-ended configurations. |
| 12 | GND | Analog/digital ground reference - requires low-impedance connection to system ground plane to minimize crosstalk and noise coupling. |
| 15–17 | A2, A1, A0 | Binary address inputs for channel selection - TTL/CMOS-compatible; control both sections simultaneously with shared decode logic. |
| 18 | EN | Active-low enable - disables all switches when high, reducing power consumption and preventing signal contention during reconfiguration. |
| 19–26 | S1A–S8A | Bidirectional analog inputs for first 8-channel section - electrically identical to S1B–S8B; enables true dual independent mux operation. |
| 27 | V- | Negative supply input - establishes lower rail for dual-supply operation; tied to GND for single-supply use. |
| 28 | DA | Bidirectional output A - delivers switched signal from first 8-channel section; complements DB (Pin 2) for parallel dual-path routing. |
Key Features
| Feature | Design Value |
|---|---|
| Pin-compatible upgrade | Direct replacement for legacy DG407 - no PCB layout changes required; preserves existing firmware and timing margins. |
| Rail-to-rail signal handling | Supports analog signals from V− to V+ - eliminates need for external clamping or level-shifting in ±15V instrumentation systems. |
| TTL/CMOS-compatible control | Accepts 0.8V/2.4V logic thresholds - interfaces directly with microcontrollers, FPGAs, and ASICs without buffer ICs. |
| Guaranteed low charge injection | ≤15pC maximum - reduces hold-mode error in 12-bit+ SAR ADC sample-and-hold stages without added correction circuitry. |
| Low power consumption | ≤1.25mW typical - enables battery-powered portable test equipment and low-power sensor concentrators. |
Applications
| Sample-and-Hold Circuits | Test Equipment |
|---|---|
Use Scenario: Multiplexing multiple sensor outputs into a single high-speed ADC's sample-and-hold amplifier. IC Role / Device Role / Timing Role: Dual 8:1 analog switch providing synchronized channel selection and low-charge-injection signal routing to preserve hold capacitor voltage integrity. Use Value: Enables 16-channel simultaneous sampling with ≤12-bit linearity via matched on-resistance and sub-15pC charge injection. | Use Scenario: Automated signal routing in benchtop multimeters and automated test equipment (ATE) for stimulus/response path configuration. IC Role / Device Role / Timing Role: Precision analog switch matrix managing calibration references, DUT connections, and measurement path isolation under microcontroller control. Use Value: Delivers <5nA off-leakage at +85°C and >69dB off-isolation to maintain measurement accuracy across temperature and signal ranges. |
| Guidance and Control Systems | Audio Signal Routing |
Use Scenario: Selecting among redundant inertial measurement unit (IMU) channels or actuator feedback signals in flight control electronics. IC Role / Device Role / Timing Role: Fault-tolerant analog multiplexer ensuring seamless channel switchover with break-before-make timing (110–300ns) and rail-to-rail signal support. Use Value: Guarantees ≤8Ω channel matching and ≤9Ω on-resistance flatness to prevent gain/phase mismatch between redundant signal paths. | Use Scenario: Programmable analog signal path selection in professional audio mixers and effects processors. IC Role / Device Role / Timing Role: Low-distortion bidirectional analog switch enabling clean routing of line-level and mic-level signals without DC blocking caps. Use Value: Achieves <−92dB crosstalk and <−69dB off-isolation at 100kHz, preserving stereo imaging and dynamic range in multi-channel audio. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADG407BRZ | 100Ω max RON, but 25pC max charge injection and −40°C to +85°C temp range only. | Higher charge injection limits resolution in precision sample-and-hold; wider temp range suits extended industrial use. | Select ADG407BRZ only if operating beyond +70°C or when Maxim's 15pC spec is not required. |
| TS5A23157DGSR | Single-supply only (+1.65V to +5.5V), 0.9Ω RON, but limited to 5.5V max analog range and no dual 8-channel topology. | Optimized for low-voltage portable audio, not high-voltage industrial signal routing. | Choose TS5A23157DGSR only for battery-powered 3.3V/5V systems where ultra-low on-resistance outweighs voltage range and channel count needs. |
Compared with ADG407BRZ and TS5A23157DGSR, the DG407CWI uniquely combines dual 8-channel architecture, ±20V capability, 15pC charge injection, and 0°C to +70°C commercial-grade reliability - making it optimal for mid-range test, measurement, and industrial control designs requiring proven pin compatibility and guaranteed matching.
Availability
DG407CWI is available at Aetrix Electronics and suitable for data-acquisition systems, test equipment, and guidance and control systems requiring stable component supply and long-term manufacturability.
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) is a fabless semiconductor company specializing in high-performance analog, mixed-signal, and power-management ICs for industrial, communications, and computing markets.
The DG407CWI belongs to Maxim's precision analog multiplexer product line, engineered for applications demanding low distortion, tight channel matching, and robust operation across wide supply and temperature ranges.
FAQ
What is the operating temperature range for the DG407CWI?
The DG407CWI is specified for operation from 0°C to +70°C. This commercial-grade temperature range is validated per Maxim's datasheet ordering information for the "C" grade variant. The device undergoes 100% testing at +70°C for leakage parameters, and all electrical characteristics-including on-resistance matching and charge injection-are guaranteed across this full range. DG407CWI is not rated for extended industrial (−40°C to +85°C) or military (−55°C to +125°C) temperatures.
Is the DG407CWI pin-compatible with older DG407 versions?
Yes, the DG407CWI is a pin-compatible plug-in upgrade for industry-standard DG407 devices. Its 28-pin wide SO package matches the footprint and pin functions of legacy DG407C/D, DG407DJ+, and DG407EWI+ variants. All address, enable, supply, ground, and I/O pins retain identical mapping and electrical behavior-enabling drop-in replacement without PCB or firmware modification.
What supply configurations does the DG407CWI support?
The DG407CWI supports both dual-supply (±4.5V to ±20V) and single-supply (+5V to +30V) operation. In dual mode, V+ and V− establish symmetric rails; in single mode, V− is connected to GND. Unbalanced supplies (e.g., +24V/−5V) are also permitted, provided the total V+–V− differential remains ≤44V. Rail-to-rail analog signal handling is maintained across all supported configurations.
How does the DG407CWI handle bidirectional signal flow?
The DG407CWI supports fully bidirectional analog signal routing on all Sx and D pins (DA, DB, S1A–S8A, S1B–S8B). Its CMOS transmission-gate architecture imposes no intrinsic directionality-signals pass equally well from input to output or output to input. This enables flexible use in demultiplexer, multiplexer, or analog crosspoint configurations without performance degradation or added complexity.
What is the maximum analog signal range supported by the DG407CWI?
With ±15V dual supplies, the DG407CWI supports an analog signal range of ±15V (i.e., from −15V to +15V referenced to V−). When operated from ±20V supplies, the range extends to ±20V. Under +12V single supply (V− = GND), the range is 0V to +12V. The device maintains guaranteed on-resistance flatness and low leakage across the full specified range in each configuration.
DG407CWI Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Obsolete
- 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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