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Analog Devices Inc./Maxim Integrated DG528DJ+
- Part No.:
- DG528DJ+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 18-DIP (0.300", 7.62mm)
- Datasheet:
-
DG528DJ+.pdf
- Description:
- IC MUX 8:1 450OHM 18DIP
- Quantity:
- Payment:
- Shipping:
Inventory:4,195
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Product details
Overview
DG528DJ+ from Maxim Integrated is a monolithic, 8-channel, single-ended CMOS analog multiplexer with on-board address latches and break-before-make switching, operating from ±4.5V to ±20V dual supplies or +5V to +30V single supply, with rDS(ON) < 400Ω and TTL/CMOS-compatible logic inputs, used in microprocessor-controlled data-acquisition systems.
For engineers reviewing the DG528DJ+ datasheet, DG528DJ+ pinout, DG528DJ+ application, or DG528DJ+ equivalent, key selection considerations include latchable BCD address decoding, ±15V analog signal range, 0.2µs break-before-make interval, and compatibility with legacy DG528/DG529 footprints and timing.
Technical Context
The DG528DJ+ integrates parallel N- and P-MOSFET switch structures with on-chip level translators, decode logic, and transparent/latched mode control via WR (write) and RS (reset) strobes. It supports µP-bus interfacing without continuous address bus holding.
Its internal architecture enables three operational modes-transparent (WR low, RS high), latched (WR high), and reset (RS low)-with EN enabling global channel disable. Analog signal range spans V− to V+, determined solely by supply rail separation, not absolute ground reference.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Analog Signal Range | ±10V typical; extends from V− to V+, enabling full-rail switching across ±4.5V to ±20V supplies |
| rDS(ON) | <400Ω max at ±15V; ensures low insertion loss and minimal voltage drop for precision signal routing |
| Break-Before-Make Interval | 0.2µs typical; prevents momentary input shorting during channel transitions |
| Logic Compatibility | TTL and CMOS inputs; VAH ≥2.4V, VAL ≤0.8V, with <1µA input current across temperature |
| Supply Range | ±4.5V to ±20V dual or +5V to +30V single; supports asymmetric rails like +15V/−5V |
| Charge Injection | 4pC typical; limits voltage glitch on switched nodes when driving capacitive loads |
| Enable Turn-On Time | 1.0–1.5µs; defines minimum delay from EN assertion to valid analog conduction |
Pinout & Package
DG528DJ+ is housed in an 18-pin plastic DIP package (0.300" wide), with through-hole mounting and industry-standard footprint compatible with legacy DG528 designs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4, 5, 6, 7, 8 | Switch Inputs S1–S8 | Analog input channels; each connects to common output D when selected |
| 9 | GND | Logic and substrate reference; tied to V+ internally per datasheet topography |
| 10 | V+ | Positive analog supply rail; sets upper bound of analog signal range |
| 11–14 | S5–S8 | Additional analog input channels; completes 1-of-8 configuration |
| 15 | A2 | MSB address input for 3-bit BCD channel selection (A2/A1/A0) |
| 16 | A1 | Mid-bit address input; latched on WR rising edge |
| 17 | A0 | LSB address input; determines active channel 1–8 in latched mode |
| 18 | RS | Reset strobe; low disables all switches and clears latches to channel 1 default |
Key Features
| Feature | Design Value |
|---|---|
| On-board address latches | Eliminates need for external latch ICs and reduces µP bus contention in real-time systems |
| Break-before-make switching | Guarantees 0.2µs minimum open interval between channel disconnect and reconnect, preventing signal shorting |
| Microprocessor-bus compatibility | WR and RS strobes align with standard µP timing; supports transparent mode for non-latched operation |
| Wide supply flexibility | Operates from ±4.5V to ±20V or +5V to +30V; enables use in mixed-signal systems with diverse rail requirements |
| Pin and electrical compatibility | Direct replacement for industry-standard DG528 and ADG528 families without layout changes |
Applications
| Data-Acquisition Systems | Automatic Test Equipment |
|---|---|
Use Scenario: Multiplexing multiple sensor outputs (thermocouples, strain gauges) into a shared ADC channel under µP control. IC Role / Device Role / Timing Role: Latched analog switch providing stable, glitch-free channel selection synchronized to µP write strobe. Use Value: Reduces system component count by integrating address latching, eliminates external glue logic, and maintains ±10V signal integrity across 8 channels. |
Use Scenario: Routing calibrated test signals to DUT inputs while isolating measurement paths during switching. IC Role / Device Role / Timing Role: Precision analog multiplexer with sub-microsecond break-before-make timing to prevent cross-talk between test fixtures. Use Value: Ensures measurement repeatability via low charge injection (4pC) and consistent rDS(ON) matching (<6% channel variation). |
| Avionics and Military Systems | Audio-Signal Multiplexing |
Use Scenario: Selecting among redundant flight-control sensor inputs in harsh environments requiring extended temperature operation. IC Role / Device Role / Timing Role: High-reliability analog switch rated for −40°C to +85°C operation with MIL-qualified variants available. Use Value: Maintains signal fidelity over wide temperature range with <400Ω rDS(ON) drift and robust ESD protection (30V zener clamp). |
Use Scenario: Switching line-level audio sources (microphones, instruments) into a shared mixer or codec path. IC Role / Device Role / Timing Role: Low-distortion analog multiplexer supporting ±10V peak audio swing with minimal crosstalk (68dB off-isolation). Use Value: Preserves audio signal-to-noise ratio via low leakage (<10nA off-state) and low capacitance (5pF CS(OFF)). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-channel latchable analog multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADG528AKRZ | Same 18-pin SO package; wider −55°C to +125°C temp range; rDS(ON) = 450Ω max; higher 12pF CD(OFF) | Better suited for extended-temperature industrial/military deployments where DG528DJ+'s −40°C to +85°C range is insufficient | Select ADG528AKRZ when operating beyond +85°C or requiring enhanced thermal stability; verify PCB pad compatibility for SO vs DIP |
| MAX4617ESE+ | 8-channel, non-latching; no WR/RS pins; smaller 16-pin SO; rDS(ON) = 60Ω typ; faster tTRANS = 150ns | Designed for high-speed, non-latched switching where µP continuously drives address lines | Choose MAX4617ESE+ only if latching is unnecessary and speed >1MHz is required; requires redesign of address control logic |
Compared with DG528DJ+, ADG528AKRZ offers broader temperature capability but larger off-capacitance, while MAX4617ESE+ delivers lower on-resistance and faster switching but removes latch functionality entirely-making it unsuitable for bus-hold or low-pin-count µP interfaces.
Availability
DG528DJ+ 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 proven reliability in industrial environments.
Supply support for DG528DJ+ 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 U.S.-based semiconductor company specializing in high-performance analog, mixed-signal, and power-management ICs for industrial, communications, and computing markets.
The DG528DJ+ belongs to Maxim's legacy precision analog switch family, designed specifically for µP-controlled multiplexing in data-acquisition and test systems where latch integration, rail-to-rail analog range, and industry-standard compatibility are critical.
FAQ
What is the operating temperature range of the DG528DJ+?
The DG528DJ+ is specified for operation from −40°C to +85°C. This extended industrial temperature range ensures reliable performance in demanding environments such as factory automation, avionics subsystems, and outdoor test instrumentation where ambient conditions exceed commercial-grade limits. The DG528DJ+ datasheet confirms this range under the Ordering Information table and Absolute Maximum Ratings section.
Does the DG528DJ+ require external latching circuitry?
No, the DG528DJ+ does not require external latching circuitry. It integrates on-board address latches controlled by the WR (write) strobe input. When WR transitions high, the current A2/A1/A0 address is captured and held indefinitely until WR goes low again or RS is asserted. This feature simplifies µP interface design and reduces board space compared to non-latching alternatives like the DG508A.
Can the DG528DJ+ operate from a single +12V supply?
Yes, the DG528DJ+ can operate from a single +12V supply. In this configuration, connect V− to GND, and the analog signal range becomes 0V to +12V. Digital inputs remain TTL/CMOS-compatible, and all timing specifications-including tON(EN) and break-before-make interval-remain valid per the datasheet's single-supply characterization at +15V and +5V.
What is the maximum analog signal voltage the DG528DJ+ can switch?
The DG528DJ+ can switch analog signals from V− to V+, with V+ and V− rails ranging from ±4.5V to ±20V. At ±15V supplies, the guaranteed analog range is ±10V. Exceeding V+ or falling below V− risks damage, as confirmed by the Absolute Maximum Ratings table specifying V+ ≤ +44V referenced to V− and analog input voltage limited to the supply rails.
Is the DG528DJ+ pin-compatible with the ADG528 series?
Yes, the DG528DJ+ is pin and electrically compatible with the ADG528 series, as explicitly stated in the Features section of the DG528/DG529 datasheet. Both share identical 18-pin DIP pinouts, logic thresholds, timing parameters, and functional behavior-including WR/RS strobe operation and latch modes-enabling direct substitution in existing layouts without modification.
DG528DJ+ 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:
- Through Hole
- Supplier Device Package:
- 18-PDIP
DG528DJ+ FAQ
1.How can I place an order for DG528DJ+ through Aetrix?
Please submit a Request for Quotation (RFQ) for DG528DJ+ 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 DG528DJ+ reliable?
The price and inventory of DG528DJ+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG528DJ+ is usually 5 days.
3.What payment methods are accepted for DG528DJ+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG528DJ+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG528DJ+?
DG528DJ+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG528DJ+ 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 DG528DJ+?
For technical support, including DG528DJ+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG528DJ+ requirements.
6.How does Aetrix verify that DG528DJ+ is sourced from the original manufacturer or authorized distributors?
All DG528DJ+ 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 DG528DJ+ meets industry standards.
7.What is the process for return or replacement of DG528DJ+?
All DG528DJ+ units undergo pre-shipment inspection (PSI). If there is an issue with DG528DJ+, 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 DG528DJ+ part is unused and in its original packaging.
Return procedure for DG528DJ+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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