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Analog Devices Inc./Maxim Integrated DG528CJ
- Part No.:
- DG528CJ
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 18-DIP (0.300", 7.62mm)
- Datasheet:
-
DG528CJ.pdf
- Description:
- IC SWITCH SP8T X 1 450OHM 18DIP
- Quantity:
- Payment:
- Shipping:
Inventory:891
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Product details
Overview
DG528CJ from Maxim Integrated is a monolithic, single-ended 1-of-8 CMOS analog multiplexer with on-board address latches, break-before-make switching, and dual-supply (±4.5V to ±20V) or single-supply (+5V to +30V) operation. It features rDS(ON) < 400Ω, TTL/CMOS-compatible logic inputs, and is used in microprocessor-controlled data-acquisition systems for channel selection.
For engineers reviewing the DG528CJ datasheet, DG528CJ pinout, DG528CJ application, or DG528CJ equivalent, key selection considerations include its latchable address interface, ±10V analog signal range, 0°C to +70°C temperature grade, 18-pin plastic DIP package, and compatibility with industry-standard DG528/DG529 footprints.
Technical Context
The DG528CJ 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 assertion, enabling transparent or latched operation modes.
Break-before-make timing is guaranteed at ≤0.2µs, and digital inputs tolerate ±2V beyond supplies with <1µA leakage. Analog performance is defined by V+–V− differential voltage, not absolute rail values-e.g., with +15V/–5V supplies, it switches –5V to +15V signals while drawing no current from V−.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Analog Signal Range | ±10V - supports bipolar signal routing without level-shifting circuitry |
| rDS(ON) | <400Ω (typ. 270Ω) - low on-resistance minimizes signal attenuation and gain error |
| Supply Range | ±4.5V to ±20V dual or +5V to +30V single - enables flexible power architecture design |
| Logic Compatibility | TTL and CMOS - interfaces directly with 5V µP buses without level translators |
| Switching Time | ≤1µs tTRANS - suitable for moderate-speed data acquisition up to ~1MHz |
| Charge Injection | 4pC - limits voltage glitch on high-impedance nodes during switching |
| Off Isolation | 68dB - suppresses crosstalk between unselected channels at audio frequencies |
Pinout & Package
Package: 18-pin plastic DIP (0.300" wide), JEDEC MS-001, RoHS-compliant option available (DG528CJ+).
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | RS (Reset) | Active-low global reset that clears all latches and disables all switches |
| 2 | A1 (Address Bit 1) | BCD address input; latched on WR falling edge to select channel 1–8 |
| 3 | GND | Analog/digital reference common; must be connected to system ground |
| 4 | V+ | Positive supply rail; sets upper analog signal limit (e.g., +15V) |
| 5 | S1 | Channel 1 analog output (common terminal for 1-of-8 mux) |
| 6 | S2 | Channel 2 analog output |
| 7 | S3 | Channel 3 analog output |
| 8 | S4 | Channel 4 analog output |
| 9 | S5 | Channel 5 analog output |
| 10 | S6 | Channel 6 analog output |
| 11 | S7 | Channel 7 analog output |
| 12 | S8 | Channel 8 analog output |
| 13 | WR (Write) | Strobe input; falling edge latches A2/A1/A0 and EN states |
| 14 | A0 (Address Bit 0) | LSB of 3-bit BCD address; determines odd/even channel selection |
| 15 | EN (Enable) | Active-high master enable; disables all switches when low |
| 16 | V− | Negative supply rail; sets lower analog signal limit (e.g., –15V) |
| 17 | S1–S8 (Inputs) | Eight independent analog inputs; S1–S8 are bidirectional (mux/demux) |
| 18 | D (Common Output) | Single-pole, 8-throw analog output node; connects to selected Sx pin |
Key Features
| Feature | Design Value |
|---|---|
| On-board address latches | Eliminates need for external address hold registers in µP systems, reducing PCB area and timing complexity |
| Break-before-make switching | Guaranteed ≤0.2µs open interval prevents momentary shorting of analog sources during channel change |
| Microprocessor-bus compatibility | Direct interface to 8-bit data/address buses via WR/RS strobes and TTL-level inputs |
| Pin and electrical compatibility | Drop-in replacement for industry-standard DG528 and ADG528 families without layout changes |
| Low-power CMOS design | Typical supply current <2.5mA (+) and <0.01mA (–) enables battery-powered or thermally constrained designs |
Applications
| Automatic Test Equipment (ATE) | Data-Acquisition Systems |
|---|---|
Use Scenario: Multiplexing sensor outputs from multiple DUTs into a shared ADC channel during production testing. IC Role / Device Role / Timing Role: DG528CJ acts as a programmable analog switch matrix, selecting one of eight transducer signals under µP control. Use Value: Enables cost-effective channel expansion without adding ADCs; latch function holds selection during test sequence execution. | Use Scenario: Routing analog inputs from thermocouples, strain gauges, or potentiometers to a central ADC in industrial monitoring. IC Role / Device Role / Timing Role: DG528CJ serves as the front-end analog multiplexer, providing ±10V signal handling and low on-resistance path. Use Value: Maintains measurement accuracy with <400Ω rDS(ON) and 68dB off-isolation, minimizing cross-channel interference. |
| Avionics Signal Management | Audio-Signal Multiplexing |
Use Scenario: Selecting among redundant flight control sensor signals (e.g., airspeed, altitude) for validation and voting logic. IC Role / Device Role / Timing Role: DG528CJ functions as a fault-tolerant analog switch, operating across –55°C to +125°C variants (DG528AK) with MIL-STD-883 options. Use Value: Break-before-make action prevents hazardous signal shorting during reconfiguration in safety-critical systems. | Use Scenario: Switching between microphone preamp outputs or line-level audio sources in professional mixing consoles. IC Role / Device Role / Timing Role: DG528CJ operates as a low-distortion analog signal router with 4pC charge injection limiting audible pop/click artifacts. Use Value: Supports wide dynamic range audio (±10V) with minimal THD contribution due to low rDS(ON) and high off-isolation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 1-of-8 latchable analog multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADG528AKRZ | 18-pin SOIC package; higher rDS(ON) (450Ω max); wider temp range (–40°C to +85°C) | Better suited for surface-mount production and extended industrial environments | Select ADG528AKRZ when board space is constrained and lead-free RoHS compliance is required. |
| DG528DJ | Same 18-pin PDIP package; extended temperature range (–40°C to +85°C); identical pinout and logic | Required for operation in automotive or outdoor industrial enclosures | Choose DG528DJ when ambient temperatures exceed +70°C but legacy through-hole assembly is retained. |
Compared with DG528CJ, ADG528AKRZ offers RoHS-compliant SOIC packaging and broader temp rating but higher on-resistance, while DG528DJ provides identical form-factor support for harsher thermal environments-neither requires PCB redesign.
Availability
DG528CJ is available at Aetrix Electronics and suitable for automatic test equipment, data-acquisition systems, and avionics requiring stable component supply with long-term obsolescence management.
Supply support for DG528CJ 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 DG528CJ belongs to Maxim's legacy analog switch/multiplexer product line, engineered for robust, latchable signal routing in µP-based instrumentation where reliability and pin compatibility are critical.
FAQ
What is the maximum analog signal voltage range supported by the DG528CJ?
The DG528CJ supports an analog signal range of ±10V when operated with dual supplies (e.g., ±15V). With single-supply operation (+5V to +30V), the analog range extends from GND to V+, provided V− is tied to GND. The device's specification guarantees operation across this full range without distortion or latch-up.
Does the DG528CJ require external pull-up resistors on its address or control lines?
No, the DG528CJ does not require external pull-up resistors. Its TTL/CMOS-compatible inputs draw less than 1µA leakage current across all logic states, and internal protection diodes ensure robustness against floating inputs. Pull-ups are only needed if system-level noise immunity or bus-hold functionality is required beyond the IC's native specifications.
Can the DG528CJ operate with asymmetric power supplies such as +15V and –5V?
Yes, the DG528CJ operates reliably with asymmetric supplies like +15V and –5V. In this configuration, the analog signal range becomes –5V to +15V, and the device draws no current from the negative rail. Digital thresholds remain centered near 1.6V above GND, preserving TTL compatibility without additional level-shifting circuitry.
What is the purpose of the RS (Reset) pin on the DG528CJ, and how is it used?
The RS (Reset) pin on the DG528CJ is an active-low signal that clears all internal address latches and disables all analog switches, forcing the device into a known-off state. It is asserted low to reset channel selection-e.g., before power-up initialization or after fault detection-to prevent undefined signal paths or unintended conduction during system startup or recovery sequences.
Is the DG528CJ pin-compatible with newer-generation analog multiplexers like the MAX4617?
No, the DG528CJ is not pin-compatible with the MAX4617. The MAX4617 is a low-voltage, single-supply, 8-channel analog switch in a 16-pin TSSOP package with different pin assignments, logic polarity, and no built-in latches. While functionally similar as an 8-channel mux, its pinout, supply requirements, and control protocol differ fundamentally-requiring PCB redesign and firmware updates for substitution.
DG528CJ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Switch Circuit:
- SP8T
- 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:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 18-PDIP
DG528CJ FAQ
1.How can I place an order for DG528CJ through Aetrix?
Please submit a Request for Quotation (RFQ) for DG528CJ 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 DG528CJ reliable?
The price and inventory of DG528CJ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG528CJ is usually 5 days.
3.What payment methods are accepted for DG528CJ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG528CJ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG528CJ?
DG528CJ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG528CJ 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 DG528CJ?
For technical support, including DG528CJ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG528CJ requirements.
6.How does Aetrix verify that DG528CJ is sourced from the original manufacturer or authorized distributors?
All DG528CJ 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 DG528CJ meets industry standards.
7.What is the process for return or replacement of DG528CJ?
All DG528CJ units undergo pre-shipment inspection (PSI). If there is an issue with DG528CJ, 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 DG528CJ part is unused and in its original packaging.
Return procedure for DG528CJ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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