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Analog Devices Inc./Maxim Integrated DG529EWN+
- Part No.:
- DG529EWN+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 18-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
DG529EWN+.pdf
- Description:
- IC SWITCH SP4T X 2 450OHM 18SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,130
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Product details
Overview
DG529EWN+ from Maxim Integrated is a differential 2-of-8 CMOS analog multiplexer with on-board address latches, break-before-make switching, ±4.5V to ±20V dual-supply or +5V to +30V single-supply operation, and TTL/CMOS-compatible digital inputs - used in precision data-acquisition systems requiring channel isolation and microprocessor-bus interfacing.
For engineers reviewing the DG529EWN+ datasheet, DG529EWN+ pinout, DG529EWN+ application, or DG529EWN+ equivalent, key selection considerations include its differential input architecture, latchable control (WR/RS/EN), rDS(ON) < 450Ω at ±15V, 0.2µs break-before-make interval, and -40°C to +85°C industrial temperature rating.
Technical Context
The DG529EWN+ implements a dual-channel differential multiplexer using parallel N- and P-MOSFET switch structures, with integrated level-shifted translators for A0/A1/EN/WR/RS inputs and a 4-bit wide latch enabling transparent or latched operation modes. Its decode logic supports 4 selectable differential pairs (IN1A/IN1B through IN4A/IN4B) routed to OUTA/OUTB outputs.
It operates with supply-independent digital thresholds (~1.6V at GND reference), supports asymmetrical supplies (e.g., +15V/–5V), draws ≤2.5mA positive supply current and ≤1.5mA negative supply current, and maintains functional break-before-make timing across its full operating voltage and temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Analog Signal Range | ±15V (with ±15V supplies); supports rail-to-rail analog switching within V− to V+ bounds |
| rDS(ON) | <450Ω typical at ±15V - ensures low insertion loss and minimal signal distortion in precision measurement paths |
| Break-Before-Make Interval | 0.2µs - prevents momentary shorting between differential input pairs during channel switching |
| Charge Injection | 4pC - limits voltage glitch on high-impedance nodes (e.g., sample-and-hold capacitors) |
| Enable Turn-On Time | 1.0–1.5µs - enables fast channel activation under microprocessor control without bus contention |
| Off Isolation | 68dB at 500kHz - provides strong channel-to-channel crosstalk suppression in multi-signal routing |
| Supply Range | ±4.5V to ±20V dual or +5V to +30V single - allows flexible system-level power architecture integration |
Pinout & Package
Package: 18-pin Wide SO (Small Outline), 0.300-inch body width, RoHS-compliant, surface-mountable with standard reflow profile.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (RS) | Reset Strobe Input | Active-low signal that clears all latches and disables all channels; required before WR pulse for reliable channel update |
| 2 (A1) | Address Bit 1 | BCD-encoded channel select input (LSB of 2-bit address for DG529's 4 differential pairs) |
| 3 (GND) | Ground Reference | Logic and analog ground reference; must be low-impedance connection for noise-sensitive applications |
| 4 (V+) | Positive Supply Rail | Accepts +5V to +30V (single) or up to +20V (dual); powers internal logic and switch driver circuitry |
| 5 (S1B) | Differential Input B, Channel 1 | Negative-side input terminal of first differential pair; matched to S1A for common-mode rejection |
| 6 (S2B) | Differential Input B, Channel 2 | Negative-side input of second differential pair; electrically identical to S1B in on-resistance and capacitance |
| 7 (S3B) | Differential Input B, Channel 3 | Negative-side input of third differential pair; shares same layout symmetry and parasitic characteristics as S1B/S2B |
| 8 (S4B) | Differential Input B, Channel 4 | Negative-side input of fourth differential pair; completes full 4-channel differential input set |
| 9 (DB) | Differential Output B | Common output node for all selected SxB inputs; routed with matched trace length to DA for skew control |
| 10 (WR) | Write Strobe Input | Active-low latch enable; captures current A0/A1 state and holds channel selection until next WR or RS event |
| 11 (A0) | Address Bit 0 | BCD-encoded channel select input (MSB of 2-bit address); together with A1 selects one of four differential pairs |
| 12 (EN) | Enable Input | Active-high global enable; when low, all switches are off regardless of address or WR state |
| 13 (V−) | Negative Supply Rail | Accepts –4.5V to –20V (dual) or 0V (single supply); substrate tied to V+, so V− must not exceed V+ by >44V |
| 14 (S1A) | Differential Input A, Channel 1 | Positive-side input terminal of first differential pair; matched to S1B for balanced signal handling |
| 15 (S2A) | Differential Input A, Channel 2 | Positive-side input of second differential pair; maintains identical rDS(ON) and CD(OFF) as S1A |
| 16 (S3A) | Differential Input A, Channel 3 | Positive-side input of third differential pair; designed for equal thermal and electrical behavior vs. other SA pins |
| 17 (S4A) | Differential Input A, Channel 4 | Positive-side input of fourth differential pair; completes differential input array with consistent layout symmetry |
| 18 (DA) | Differential Output A | Common output node for all selected SxA inputs; paired with DB to preserve differential integrity in downstream stages |
Key Features
| Feature | Design Value |
|---|---|
| On-board address latches | Eliminates need for external latch ICs or continuous µP address bus drive - reduces PCB area and timing complexity |
| Break-before-make switching | Guarantees 0.2µs minimum open interval between channel disconnect and reconnect - prevents transient shorts in sensitive analog paths |
| TTL/CMOS logic compatibility | Input thresholds centered at ~1.6V (GND-referenced) with <±3mV/°C drift - ensures robust interface across temperature without level shifters |
| Differential 2-of-8 architecture | Routes four independent differential signal pairs (IN1A/B–IN4A/B) to shared OUTA/OUTB - enables true differential signal routing in DAQ front-ends |
| Microprocessor-bus compatible control | WR/RS strobes align with standard µP write/reset cycles; timing parameters (tWW, tDW, tWD) meet 8080/Z80 bus specifications |
| PIN- and electrically compatible with ADG529 | Shares identical pinout, logic behavior, and electrical specs with Analog Devices' ADG529 - simplifies dual-sourcing and redesign |
Applications
| Data-Acquisition Systems | Automatic Test Equipment |
|---|---|
|
Use Scenario: Multiplexing multiple sensor signals (e.g., thermocouples, strain gauges) into a single ADC with high common-mode rejection. IC Role / Device Role / Timing Role: Differential analog switch providing channel selection, break-before-make isolation, and latch-controlled sequencing synchronized to µP commands. Use Value: Enables 4-channel differential input scanning without external latches or timing glue logic, reducing component count and board space by ≥30%. |
Use Scenario: Routing calibrated reference voltages and DUT signals to metrology-grade measurement instruments in production test racks. IC Role / Device Role / Timing Role: Precision analog switch with 68dB off-isolation and 4pC charge injection, controlled via WR/RS strobes for deterministic channel updates. Use Value: Maintains measurement accuracy (<0.01% gain error) across channels by minimizing crosstalk and settling glitches during high-speed test sequences. |
| Avionics and Military Systems | Communication Systems |
|
Use Scenario: Selecting redundant flight-control sensor inputs (e.g., air data computers) in DO-254-certifiable hardware. IC Role / Device Role / Timing Role: Radiation-tolerant (via CERDIP variants) analog multiplexer with -40°C to +85°C extended temp support and latch retention during power transients. Use Value: Provides fail-safe channel selection with guaranteed break-before-make behavior - critical for avoiding hazardous signal coupling in safety-critical subsystems. |
Use Scenario: Switching I/Q baseband signals between multiple RF transceivers and shared ADC/DAC paths in software-defined radios. IC Role / Device Role / Timing Role: Low-rDS(ON) differential switch supporting DC–500kHz bandwidth with matched path delay (tTRANS = 0.4–1µs) for I/Q phase coherence. Use Value: Preserves quadrature balance and SNR (>80dB) across switched paths - essential for maintaining EVM compliance in LTE/WiFi modems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar differential analog multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADG529BRUZ | Identical pinout, same rDS(ON) (450Ω), but specifies 0.15µs break-before-make (vs. 0.2µs) and higher off-isolation (72dB) | Better suited for ultra-low-crosstalk RF sampling; requires verification of WR/RS timing compatibility with legacy µP firmware | Select ADG529BRUZ when off-isolation >70dB is mandatory and timing margins allow tighter B.B.M. window |
| MAX4617ESA+ | Single-ended 8:1 mux (not differential); lower rDS(ON) (120Ω), no on-board latches, requires external address decoding | Applicable only where differential signaling is unnecessary and board space permits added logic components | Choose MAX4617ESA+ for cost-sensitive, single-ended applications where latch integration is not required |
Compared with DG529EWN+, ADG529BRUZ offers superior off-isolation and faster switching but demands tighter timing validation, while MAX4617ESA+ trades differential capability and latch integration for lower on-resistance and reduced bill-of-materials cost in non-differential designs.
Availability
DG529EWN+ is available at Aetrix Electronics and suitable for data-acquisition systems, automatic test equipment, and avionics applications requiring stable component supply, long-term lifecycle support, and industrial-temperature-grade reliability.
Supply support for DG529EWN+ 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 DG529EWN+ belongs to Maxim's legacy precision analog switch family, designed specifically for microprocessor-controlled, high-fidelity signal routing in harsh-environment data acquisition and test instrumentation.
FAQ
What is the maximum supply voltage rating for DG529EWN+?
The DG529EWN+ supports dual supplies from ±4.5V to ±20V, with absolute maximum ratings of +44V on V+ and –44V on V− (referenced to V−). Exceeding ±20V voids guaranteed performance per datasheet specifications, though the device may survive brief transients within absolute max limits. For sustained operation, stay within ±20V.
Does DG529EWN+ require external pull-up resistors on WR, RS, or EN pins?
No, DG529EWN+ does not require external pull-ups on WR, RS, or EN. Its digital inputs have leakage currents ≤1µA and are internally compatible with TTL/CMOS logic levels. Pull-ups may be added only if system-level noise immunity or bus-hold requirements dictate - not for basic functionality.
Can DG529EWN+ operate with an asymmetric supply like +15V and –5V?
Yes, DG529EWN+ supports asymmetric supplies such as +15V and –5V. In this configuration, the analog signal range becomes –5V to +15V, and rDS(ON) remains specified. The digital threshold stays ~1.6V above GND, ensuring TTL compatibility without level shifting - a key advantage for mixed-voltage system design.
What is the function of the RS (Reset) pin on DG529EWN+?
The RS pin on DG529EWN+ is an active-low reset strobe that clears all internal address latches and forces all switches into the OFF state, regardless of prior WR or EN states. It must be asserted (low) before issuing a new WR pulse to ensure deterministic channel selection - a requirement explicitly stated in the timing diagrams and truth tables.
Is DG529EWN+ pin-compatible with the older DG529CWN variant?
Yes, DG529EWN+ is pin-compatible with DG529CWN. Both use the same 18-pin Wide SO package and identical pinout. The primary difference is temperature grade: DG529CWN is rated for 0°C to +70°C, while DG529EWN+ extends to –40°C to +85°C - making it suitable for industrial and automotive environments without layout changes.
DG529EWN+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Active
- Switch Circuit:
- SP4T
- Multiplexer/Demultiplexer Circuit:
- 4:1
- Number of Circuits:
- 2
- On-State Resistance (Max):
- 450Ohm
- Channel-to-Channel Matching (ΔRon):
- -
- 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
DG529EWN+ FAQ
1.How can I place an order for DG529EWN+ through Aetrix?
Please submit a Request for Quotation (RFQ) for DG529EWN+ 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 DG529EWN+ reliable?
The price and inventory of DG529EWN+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG529EWN+ is usually 5 days.
3.What payment methods are accepted for DG529EWN+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG529EWN+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG529EWN+?
DG529EWN+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG529EWN+ 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 DG529EWN+?
For technical support, including DG529EWN+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG529EWN+ requirements.
6.How does Aetrix verify that DG529EWN+ is sourced from the original manufacturer or authorized distributors?
All DG529EWN+ 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 DG529EWN+ meets industry standards.
7.What is the process for return or replacement of DG529EWN+?
All DG529EWN+ units undergo pre-shipment inspection (PSI). If there is an issue with DG529EWN+, 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 DG529EWN+ part is unused and in its original packaging.
Return procedure for DG529EWN+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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