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Analog Devices Inc./Maxim Integrated DG407EWI+T
- Part No.:
- DG407EWI+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 28-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
DG407EWI+T.pdf
- Description:
- IC MUX DUAL 8:1 100OHM 28SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,636
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Product details
Overview
DG407EWI+T from Maxim Integrated is a dual 8-channel CMOS analog multiplexer/demultiplexer designed for precision signal routing in data-acquisition and test systems. It features guaranteed 100Ω max on-resistance, 8Ω max channel-to-channel on-resistance matching, and 15pC max charge injection-enabling low-distortion sampling in high-fidelity audio and instrumentation applications.
For engineers reviewing the DG407EWI+T datasheet, DG407EWI+T pinout, DG407EWI+T application, or DG407EWI+T equivalent, key selection criteria include its -40°C to +85°C industrial temperature range, 28-pin wide SOIC package, rail-to-rail analog signal handling (±10V with ±15V supplies), and TTL/CMOS-compatible digital control inputs.
Technical Context
The DG407EWI+T implements a dual independent 8:1 analog switch architecture with separate address decoding (A0–A2) and enable (EN) per 8-channel bank. Each channel conducts bidirectionally with matched RDS(ON) across temperature and supply voltage variations.
Its internal CMOS transmission-gate design supports single-supply (+5V to +30V) and dual-supply (±4.5V to ±20V) operation, with ESD protection exceeding 2000V per MIL-STD-883 Method 3015.7. Analog signal range extends rail-to-rail, limited only by V+ and V− potentials.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-Resistance (RDS(ON)) | 100Ω max - ensures minimal signal attenuation and gain error in precision measurement paths |
| On-Resistance Matching | 8Ω max - guarantees consistent gain and phase response across channels in multi-sensor systems |
| Charge Injection | 15pC max - limits voltage glitch and settling time in sample-and-hold circuits |
| Analog Signal Range | ±10V (with ±15V supplies) - supports full-scale industrial sensor outputs without level-shifting |
| Input Leakage Current | 5nA max at +85°C - preserves accuracy in high-impedance sensor front-ends and integrator stages |
| Enable Turn-On Time | 400ns max - enables fast channel switching in real-time control loops and automated test equipment |
| Supply Voltage Range | +5V to +30V single or ±4.5V to ±20V dual - allows flexible integration into legacy and modern power architectures |
Pinout & Package
Package: 28-pin Wide SOIC (W28+6), RoHS-compliant, surface-mount, 7.6mm × 17.9mm footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2 | V+, DB | Positive supply input (pin 1); bidirectional output B (pin 2) - powers device and delivers switched analog signal from second 8-channel bank |
| 3, 13, 14 | N.C. | No internal connection - must remain unconnected to avoid parasitic coupling or latch-up risk |
| 4–11 | S1B–S8B | Bidirectional analog inputs for Bank B - accept or source signals from external sensors or DACs |
| 12 | GND | Ground reference - serves as return path for analog and digital currents; requires low-impedance PCB plane |
| 15–17 | A2, A1, A0 | Address inputs for Bank A - select one of eight S1A–S8A channels using standard binary encoding |
| 18 | EN | Enable input - active-high logic control enabling/disabling both banks simultaneously |
| 19–26 | S1A–S8A | Bidirectional analog inputs for Bank A - independently routed to DA output (pin 28) |
| 27 | V− | Negative supply input - sets lower rail for dual-supply operation; tied to GND for single-supply use |
| 28 | DA | Bi-directional output A - carries selected signal from Bank A; shares common ground with DB (pin 2) |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail signal handling | Supports analog voltages from V− to V+ - eliminates need for external level shifters in ±15V systems |
| Guaranteed channel matching | 8Ω max RDS(ON) mismatch - critical for differential measurements and multi-channel calibration |
| TTL/CMOS-compatible inputs | Logic thresholds at 0.8V (low) and 2.4V (high) - interoperable with standard microcontrollers and FPGAs without buffers |
| Low power consumption | 1.25mW max at +25°C - reduces thermal drift and simplifies thermal management in dense PCB layouts |
| ESD protection | >2000V per MIL-STD-883 Method 3015.7 - enhances robustness during board assembly and field service |
Applications
| Sample-and-Hold Circuits | Test Equipment |
|---|---|
Use Scenario: High-speed acquisition of multiple sensor outputs into a shared ADC pipeline. IC Role / Device Role / Timing Role: Dual 8:1 analog multiplexer routing conditioned signals to a single sample-and-hold amplifier. Use Value: 15pC max charge injection minimizes hold-mode voltage error; 400ns max turn-on time supports ≥1MHz sampling rates. |
Use Scenario: Automated functional testing of multi-port communication modules. IC Role / Device Role / Timing Role: Signal path selector connecting DUT I/O pins to instrument channels under microcontroller control. Use Value: 100Ω max on-resistance preserves signal integrity up to 10MHz; 8Ω matching ensures consistent test repeatability across ports. |
| Guidance and Control Systems | Audio Signal Routing |
Use Scenario: Redundant sensor voting in flight control electronics with hot-swappable analog inputs. IC Role / Device Role / Timing Role: Fault-tolerant analog switch matrix selecting primary/backup gyroscope or accelerometer signals. Use Value: -40°C to +85°C operating range ensures reliability in avionics environments; 5nA leakage prevents bias current errors in precision op-amp interfaces. |
Use Scenario: Channel assignment in professional audio mixing consoles with analog summing buses. IC Role / Device Role / Timing Role: Low-distortion analog switch bank routing microphone preamp outputs to channel strips. Use Value: Rail-to-rail operation handles ±10V line-level signals without clipping; 9Ω max on-resistance flatness maintains frequency response uniformity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADG407BRZ | 120Ω max RDS(ON), 20pC max charge injection, same 28-pin SOIC package | Higher on-resistance increases gain error in precision DC-coupled paths; higher charge injection degrades sub-1µs settling | Acceptable where cost sensitivity outweighs 0.5-bit effective resolution loss in 12-bit systems |
| TS5A23157DGSR | Single-supply only (+1.65V to +5.5V), 0.9Ω typical RDS(ON), 2.5pC typical charge injection | Not suitable for ±10V industrial signals; optimized for portable low-voltage audio, not test instrumentation | Only viable for battery-powered consumer audio; incompatible with DG407EWI+T's voltage and temperature requirements |
Compared with ADG407BRZ and TS5A23157DGSR, the DG407EWI+T uniquely balances industrial-grade voltage range, guaranteed matching, and low leakage-making it irreplaceable in high-accuracy, wide-temperature analog signal routing where channel consistency is non-negotiable.
Availability
DG407EWI+T is available at Aetrix Electronics and suitable for data-acquisition systems, automated test equipment, and guidance and control systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for DG407EWI+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 high-performance analog and mixed-signal ICs for industrial, communications, and computing applications.
The DG407EWI+T belongs to Maxim's precision analog multiplexer product line, engineered specifically for low-error signal routing in test, measurement, and control systems demanding guaranteed matching and rail-to-rail operation.
FAQ
What is the maximum supply voltage rating for DG407EWI+T?
The DG407EWI+T supports absolute maximum ratings of V+ = -0.3V to +44V referenced to V−, with recommended operating ranges of +5V to +30V (single supply) or ±4.5V to ±20V (dual supply). Exceeding these limits risks permanent damage, and proper sequencing (V+ first, then V−, then logic) is required for reliable operation.
Does DG407EWI+T support rail-to-rail analog signal switching?
Yes, DG407EWI+T supports rail-to-rail analog signal handling - signals can swing from V− to V+ without distortion or clipping. With ±15V supplies, this enables ±10V analog signal routing, making DG407EWI+T suitable for industrial sensor interfaces and precision instrumentation where full dynamic range utilization is essential.
What is the guaranteed on-resistance matching specification for DG407EWI+T?
The DG407EWI+T guarantees ≤8Ω maximum on-resistance matching between any two channels across the full operating temperature range (-40°C to +85°C) and specified supply conditions. This parameter is tested and guaranteed - not typical - ensuring predictable gain consistency in multi-channel differential or ratiometric measurement systems.
Can DG407EWI+T operate from a single +12V supply?
Yes, DG407EWI+T operates from a +5V to +30V single supply. When using +12V, connect V− to GND. The analog signal range becomes 0V to +12V, and on-resistance increases slightly versus ±15V operation - RDS(ON) remains ≤175Ω max at +25°C and ≤200Ω over temperature per datasheet Table "ELECTRICAL CHARACTERISTICS-Single Supply".
Is DG407EWI+T pin-compatible with legacy DG407 variants?
Yes, DG407EWI+T is a pin-compatible plug-in upgrade for industry-standard DG407 devices including DG407CJ+, DG407DJ+, and DG407AK. It retains identical pinout, footprint, and logic interface while improving on-resistance matching, flatness, and leakage performance - no PCB redesign is required for migration.
DG407EWI+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- 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:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 28-SOIC
DG407EWI+T FAQ
1.How can I place an order for DG407EWI+T through Aetrix?
Please submit a Request for Quotation (RFQ) for DG407EWI+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 DG407EWI+T reliable?
The price and inventory of DG407EWI+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG407EWI+T is usually 5 days.
3.What payment methods are accepted for DG407EWI+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG407EWI+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG407EWI+T?
DG407EWI+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG407EWI+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 DG407EWI+T?
For technical support, including DG407EWI+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG407EWI+T requirements.
6.How does Aetrix verify that DG407EWI+T is sourced from the original manufacturer or authorized distributors?
All DG407EWI+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 DG407EWI+T meets industry standards.
7.What is the process for return or replacement of DG407EWI+T?
All DG407EWI+T units undergo pre-shipment inspection (PSI). If there is an issue with DG407EWI+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 DG407EWI+T part is unused and in its original packaging.
Return procedure for DG407EWI+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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