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Analog Devices Inc./Maxim Integrated DG528EWN+
- Part No.:
- DG528EWN+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 18-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
DG528EWN+.pdf
- Description:
- IC MUX 8:1 450OHM 18SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,286
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Product details
Overview
DG528EWN+ from Maxim Integrated is a monolithic, 8-channel CMOS analog multiplexer with on-board address latches and break-before-make switching, designed for microprocessor-controlled data-acquisition systems. It operates from ±4.5V to ±20V dual supplies or +5V to +30V single supply, features TTL/CMOS-compatible logic inputs, and delivers rDS(ON) < 400Ω at ±15V. Its primary circuit role is single-ended 1-of-8 signal routing in precision analog front-ends.
For engineers reviewing the DG528EWN+ datasheet, DG528EWN+ pinout, DG528EWN+ application, or DG528EWN+ equivalent, key selection considerations include its latchable address interface, guaranteed -40°C to +85°C industrial temperature range, wide analog signal range (±15V), low charge injection (4pC), and compatibility with legacy DG528/DG529 designs requiring stable channel isolation and timing control.
Technical Context
The DG528EWN+ integrates parallel N- and P-MOSFET switch structures controlled by a decoded BCD address (A2/A1/A0), enable (EN), write (WR), and reset (RS) logic. Its internal latches hold channel selection indefinitely after WR strobe, eliminating continuous address bus loading in µP systems.
Break-before-make operation ensures no momentary shorting between channels during switching, with tOPEN = 0.2µs. Digital thresholds remain stable across supply voltages (1.5V–1.6V), supporting reliable interfacing with TTL logic even at ±5V supplies while maintaining analog performance defined by V+–V– differential.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Analog Signal Range | ±15V - supports full-rail switching of bipolar signals without clipping when powered from ±15V supplies |
| rDS(ON) | <400Ω (typ 270Ω) - ensures minimal voltage drop and gain error in precision sensor signal paths |
| Charge Injection | 4pC - limits voltage glitch on high-impedance nodes (e.g., sample-hold capacitors) during switching |
| Off Isolation | 68dB - provides strong channel-to-channel crosstalk suppression in multi-sensor acquisition |
| Switching Time | 0.4µs (tTRANS) - enables fast channel scanning in real-time data logging applications |
| Supply Range | ±4.5V to ±20V dual or +5V to +30V single - allows flexible power architecture integration including asymmetrical rails like +15V/–5V |
| Temperature Range | –40°C to +85°C - qualified for industrial and avionics environments without derating |
Pinout & Package
Package: 18-pin Wide SO (Small Outline), 0.300-inch body width, RoHS-compliant lead-free finish (DG528EWN+).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (RS) | Reset Strobe | Active-low signal that clears all latches and disables all channels to channel 1 default state |
| 2 (A1) | Address Input A1 | BCD bit for channel selection (A2/A1/A0 define 1-of-8 decoding); TTL/CMOS compatible |
| 3 (GND) | Analog/Digital Ground | Common reference for analog signals and digital logic; must be low-impedance for noise immunity |
| 4 (V+) | Positive Supply | Accepts +5V to +30V (single) or up to +20V (dual); powers analog switches and level translators |
| 5–12 (S1–S8) | Analog Inputs | Eight single-ended source terminals; each connects to internal MOSFET switch pair when selected |
| 13 (D) | Common Output | Single analog output node shared by all eight channels; routed to selected Sx input |
| 14 (WR) | Write Strobe | Active-low latch enable: falling edge captures current A2/A1/A0 state into internal register |
| 15 (A0) | Address Input A0 | LSB of 3-bit address bus; determines channel 1/3/5/7 vs 2/4/6/8 selection with A1/A2 |
| 16 (EN) | Enable Control | Active-high global enable: disables all switches when low, useful for cascading multiple DG528s |
| 17 (V–) | Negative Supply | Accepts –4.5V to –20V (dual) or tied to GND for single-supply operation; defines lower analog rail |
| 18 (A2) | Address Input A2 | MSB of 3-bit address bus; combined with A1/A0 selects one of eight analog channels |
Key Features
| Feature | Design Value |
|---|---|
| On-board address latches | Eliminates need for external latch ICs or constant µP address bus drive, reducing PCB area and timing complexity |
| Break-before-make switching | Guarantees 0.2µs minimum open interval between channel disconnect and reconnect, preventing signal shorting |
| TTL/CMOS logic compatibility | Supports direct interface to 5V µP buses without level shifters; input thresholds stable from ±5V to ±20V supplies |
| Microprocessor-bus compatibility | WR/RS strobes align with standard µP write cycles; transparent mode allows non-latching operation like DG508A |
| Pin and electrical compatibility | Drop-in replacement for industry-standard DG528 and ADG528 families, enabling legacy design upgrades without layout change |
Applications
| Industrial Data Acquisition | Avionics Sensor Multiplexing |
|---|---|
Use Scenario: Scanning 8 thermocouple or RTD inputs in a programmable logic controller (PLC) with isolated ADC front-end. IC Role / Device Role / Timing Role: Single-ended 1-of-8 analog switch providing channel selection under µP control with latch retention between scans. Use Value: Break-before-make prevents cross-talk between high-impedance sensor outputs; ±15V analog range accommodates offset-compensated signals. | Use Scenario: Routing analog outputs from multiple inertial measurement units (IMUs) to a central flight computer ADC. IC Role / Device Role / Timing Role: Ruggedized analog multiplexer handling –40°C to +85°C operation and ESD-protected digital inputs per MIL-STD-883 requirements. Use Value: 68dB off-isolation minimizes interference between critical navigation sensors; latch retention reduces µP bus traffic during high-speed sampling. |
| Automated Test Equipment (ATE) | Audio Signal Routing |
Use Scenario: Switching DUT signals to calibrated reference sources and measurement instruments in semiconductor test handlers. IC Role / Device Role / Timing Role: Precision analog path selector with low rDS(ON) and 4pC charge injection to preserve signal fidelity during automated calibration sequences. Use Value: Sub-microsecond switching time enables rapid test sequence execution; wide supply range supports mixed-voltage test fixtures. | Use Scenario: Channel-selectable routing of line-level audio inputs (e.g., mic, instrument, playback) to a common amplifier stage in pro-audio mixers. IC Role / Device Role / Timing Role: Low-distortion analog switch with minimal THD contribution due to symmetric N/P MOSFET structure and low on-resistance. Use Value: 270Ω typical rDS(ON) ensures flat frequency response up to 20kHz; latch function holds selected input during manual knob adjustment. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADG528AKRZ | Higher rDS(ON) (450Ω typ), wider temp range (–55°C to +125°C), CERDIP package | Better suited for extended-temperature military/aerospace use where SO packaging is insufficient | Select ADG528AKRZ only when CERDIP hermetic sealing or extreme temperature operation is required |
| DG528DN+ | 20-pin PLCC package, same electrical specs, –40°C to +85°C rating | Preferred for surface-mount designs requiring higher I/O density and thermal performance than SO | Choose DG528DN+ when board space constraints favor PLCC over wide SO or when reflow profile requires different thermal mass |
Compared with DG528EWN+, ADG528AKRZ offers superior temperature resilience but sacrifices SO package convenience and cost efficiency, while DG528DN+ provides identical functionality in a denser PLCC footprint-neither is pin-compatible, requiring PCB redesign, but both maintain functional equivalence in µP-latched 1-of-8 analog routing.
Availability
DG528EWN+ is available at Aetrix Electronics and suitable for industrial data acquisition, avionics sensor interfaces, and automated test equipment requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for DG528EWN+ 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, communications, and computing applications.
The DG528EWN+ belongs to Maxim's legacy latchable analog multiplexer product line, engineered specifically for µP-based systems needing deterministic channel selection, robust analog signal integrity, and seamless drop-in compatibility with industry-standard 8-channel mux architectures.
FAQ
What is the maximum analog signal voltage range supported by the DG528EWN+?
The DG528EWN+ supports an analog signal range of ±15V when operated from ±15V supplies. Its absolute maximum ratings allow V+ up to +44V and V– down to –44V referenced to ground, but the usable linear analog range is bounded by the supply rails - e.g., 0V to +30V with single +30V supply, or –15V to +15V with dual ±15V supplies. This range is confirmed in the Electrical Characteristics table under "Analog-Signal Range" with a value of ±15V.
Does the DG528EWN+ require external pull-up resistors on its address lines (A2/A1/A0)?
No, the DG528EWN+ does not require external pull-up resistors on A2, A1, or A0. Its digital inputs are TTL and CMOS compatible with guaranteed input thresholds (VAL ≤ 0.8V, VAH ≥ 2.4V) and leakage current limited to ±1µA max. The device draws negligible current from address lines, and internal design ensures reliable logic recognition without external biasing - as verified in the "Address Input Current" specifications (IAL/IAH) and "Digital Interface Levels" section of the datasheet.
Can the DG528EWN+ operate from a single +12V supply?
Yes, the DG528EWN+ can operate from a single +12V supply. Per the datasheet, it supports single-supply operation from +5V to +30V. When using +12V, connect V– to GND and ensure the analog input signals remain within 0V to +12V. Digital thresholds remain functional (~1.6V), and rDS(ON) increases slightly versus ±15V operation but stays within specification (≤400Ω). This configuration is explicitly validated in the "Operation with Supply Voltages Other Than ±15V" section.
What is the purpose of the EN (Enable) pin on the DG528EWN+?
The EN (Enable) pin on the DG528EWN+ is an active-high control that globally disables all eight analog switches when pulled low. This feature allows software-controlled shutdown of signal paths - for example, to isolate unused channels during power-saving modes or to prevent signal coupling when cascading multiple DG528EWN+ devices to build larger multiplexers. Its behavior is documented in Table 1 (DG528 Logic States) and the "Detailed Description" section, where EN=0 forces all switches off regardless of address or WR state.
Is the DG528EWN+ pin-compatible with the ADG528A from Analog Devices?
No, the DG528EWN+ is not pin-compatible with the ADG528A. While both are 8-channel latchable analog multiplexers with similar functionality and electrical specs (e.g., rDS(ON), charge injection), the ADG528A uses a 16-pin TSSOP package with different pin assignments - notably consolidating RS/WR/EN functions and omitting separate S1–S8 pins in favor of a different layout. The DG528EWN+ uses an 18-pin Wide SO package with dedicated pins for all eight inputs (S1–S8), D, RS, WR, EN, A2/A1/A0, V+/V–, and GND, as shown in the Pin Configurations diagram on page 10 of the datasheet.
DG528EWN+ 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:
- 1
- On-State Resistance (Max):
- 450Ohm
- Channel-to-Channel Matching (ΔRon):
- 27Ohm
- Voltage - Supply, Single (V+):
- 5V ~ 30V
- Voltage - Supply, Dual (V±):
- ±4.5V ~ 20V
- Switch Time (Ton, Toff) (Max):
- 1.5µs, 1.5µs
- -3db Bandwidth:
- -
- Charge Injection:
- 4pC
- Channel Capacitance (CS(off), CD(off)):
- 5pF, 25pF
- Current - Leakage (IS(off)) (Max):
- 5nA
- Crosstalk:
- -
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 18-SOIC
DG528EWN+ FAQ
1.How can I place an order for DG528EWN+ through Aetrix?
Please submit a Request for Quotation (RFQ) for DG528EWN+ 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 DG528EWN+ reliable?
The price and inventory of DG528EWN+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG528EWN+ is usually 5 days.
3.What payment methods are accepted for DG528EWN+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG528EWN+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG528EWN+?
DG528EWN+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG528EWN+ 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 DG528EWN+?
For technical support, including DG528EWN+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG528EWN+ requirements.
6.How does Aetrix verify that DG528EWN+ is sourced from the original manufacturer or authorized distributors?
All DG528EWN+ 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 DG528EWN+ meets industry standards.
7.What is the process for return or replacement of DG528EWN+?
All DG528EWN+ units undergo pre-shipment inspection (PSI). If there is an issue with DG528EWN+, 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 DG528EWN+ part is unused and in its original packaging.
Return procedure for DG528EWN+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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