My Inquiry
My Account
Analog Devices Inc./Maxim Integrated DG509ACJ
- Part No.:
- DG509ACJ
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-DIP (0.300", 7.62mm)
- Datasheet:
-
DG509ACJ.pdf
- Description:
- IC SWITCH SP4T X 2 450OHM 16DIP
- Quantity:
- Payment:
- Shipping:
Inventory:1,075
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
DG509ACJ from Maxim Integrated is a differential 4-channel (2-of-8) monolithic CMOS analog multiplexer with break-before-make switching, ±4.5V to ±18V dual-supply operation, and TTL/CMOS-compatible logic inputs. It features 500Ω typical on-resistance, <0.5nA max off-leakage at ±10V, and 0.6μs typical switch transition time - enabling precision signal routing in data-acquisition systems requiring rail-to-rail analog handling.
For engineers reviewing the DG509ACJ datasheet, DG509ACJ pinout, DG509ACJ application, or DG509ACJ equivalent, this part supports differential channel selection in high-reliability industrial instrumentation where supply tolerance, low leakage, and latchup immunity are critical design constraints.
Technical Context
The DG509ACJ implements a fully decoded 2-bit address logic (A0/A1) controlling four independent differential switch pairs (S1A/S1B through S4A/S4B), each bidirectional and symmetrical. Its CMOS architecture ensures matched on-resistance across channels and guarantees no latchup even with input signals present during power-down.
It operates over ±4.5V to ±18V supplies with validated performance at ±15V, delivering 68dB off-isolation at 500kHz and <5pF source off-capacitance. Enable (EN) control provides full channel disable with 0.4μs turn-on and 0.2μs turn-off timing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Analog Signal Range | ±15V - supports rail-to-rail signal switching without clipping in ±15V systems |
| Drain-Source On-Resistance | 500Ω typ - ensures minimal gain error and voltage drop in precision analog paths |
| Source Off-Leakage Current | ±50nA max at ±10V - preserves accuracy in high-impedance sensor interfaces |
| Switch Transition Time | 0.6μs typ - enables sub-microsecond channel switching for fast-sampling DAQ |
| Off-Isolation | 68dB at 500kHz - suppresses crosstalk between active and inactive differential pairs |
| Enable Turn-On Time | 0.4μs typ - allows tight synchronization of mux enable with ADC sampling windows |
| Supply Voltage Range | ±4.5V to ±18V - accommodates legacy industrial ±5V, ±12V, and ±15V power rails |
Pinout & Package
Package: 16-pin plastic DIP (0°C to +70°C operating range), RoHS-compliant with + suffix option.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 16 | A0, A1 | 2-bit binary address inputs selecting one of four differential switch pairs |
| 2 | EN | Active-high enable: disables all switches when low, prevents partial conduction |
| 3 | V− | Negative supply rail connection - must be referenced to GND for proper biasing |
| 4–7 | S1A–S4A | First side of differential analog inputs/outputs - bidirectional, matched to SxB pins |
| 8, 9 | DA, DB | Differential analog outputs - routed from selected SxA/SxB pair when EN = high |
| 10–13 | S4B–S1B | Second side of differential analog inputs/outputs - electrically mirrored to SxA pins |
| 14 | V+ | Positive supply rail connection - establishes upper analog voltage limit |
| 15 | GND | Signal reference ground - required for logic interface and analog common-mode stability |
Key Features
| Feature | Design Value |
|---|---|
| Symmetrical, bidirectional operation | Identical on-resistance and capacitance for both signal directions - enables flexible mux/demux reuse |
| Break-before-make switching | Guaranteed 0.2μs minimum open interval - prevents momentary shorting between differential channels |
| Latchup-proof construction | No latchup observed with inputs active during power-off - eliminates system reset requirements |
| TTL/CMOS-compatible logic inputs | Accepts 0.8V/2.4V thresholds - interoperable with standard microcontrollers and FPGAs without level shifters |
| Low-power CMOS design | 0.02mA supply current in standby - extends battery life in portable data loggers |
Applications
| Data-Acquisition Systems | Aircraft Heads-Up Displays |
|---|---|
Use Scenario: Multiplexing multiple differential sensor outputs (e.g., RTDs, strain gauges) into a single high-resolution ADC. IC Role / Device Role / Timing Role: Differential analog switch enabling sequential sampling of isolated transducer pairs with minimal crosstalk. Use Value: 68dB off-isolation and matched on-resistance preserve measurement integrity across all four channels. |
Use Scenario: Routing redundant video or symbol generator signals to HUD combiner optics under flight-critical redundancy protocols. IC Role / Device Role / Timing Role: Fault-tolerant differential signal selector ensuring uninterrupted display feed during channel validation or failure. Use Value: Break-before-make timing prevents transient shorts during hot-swappable source switching in avionics busses. |
| Control Systems | Signal Routing |
Use Scenario: Isolating feedback paths from multiple motor drives to a central PID controller in multi-axis industrial motion systems. IC Role / Device Role / Timing Role: Bidirectional differential switch managing return signals from servo amplifiers while maintaining common-mode rejection. Use Value: ±15V analog range accommodates high-voltage drive feedback without external attenuation. |
Use Scenario: Configuring test equipment I/O matrices to route arbitrary analog stimulus/response paths between instruments and UUTs. IC Role / Device Role / Timing Role: Reconfigurable differential path selector supporting automated calibration sequences with sub-microsecond settling. Use Value: 0.6μs transition time enables rapid test step sequencing in ATE platforms. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar differential analog multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX339CPE+ | Improved successor with ±5V min supply, lower 120Ω RDS(ON), and 0.1nA leakage - but only 0°C to +70°C plastic DIP variant available | Designed for lower-voltage systems; not rated for ±18V operation like DG509ACJ | Select MAX339CPE+ when supply is limited to ±5V/±12V and ultra-low on-resistance is prioritized |
| ADG509AKRZ | Analog Devices' pin-compatible 16-pin SOIC variant with identical 2-of-8 differential topology, 400Ω RDS(ON), and −40°C to +85°C rating | Same functional behavior but wider temperature range and surface-mount packaging | Select ADG509AKRZ for extended temperature operation or PCB space-constrained designs requiring SOIC |
Compared with DG509ACJ, MAX339CPE+ offers better performance at lower voltages but sacrifices high-voltage robustness, while ADG509AKRZ provides identical functionality in a modern SOIC package with broader temperature support - neither is pin-compatible with the DG509ACJ's 16-pin DIP footprint.
Availability
DG509ACJ is available at Aetrix Electronics and suitable for data-acquisition systems, aircraft heads-up displays, and industrial control systems requiring stable component supply with long-term obsolescence management.
Supply support for DG509ACJ 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, medical, and communications applications.
The DG509ACJ belongs to Maxim's legacy monolithic CMOS analog multiplexer family, engineered for high-voltage rail-to-rail signal routing in environments demanding latchup immunity and wide supply flexibility.
FAQ
What is the maximum supply voltage rating for DG509ACJ?
The DG509ACJ supports continuous operation from ±4.5V to ±18V. Absolute maximum ratings specify V+ up to +44V referenced to V−, but functional operation is guaranteed only within the ±4.5V to ±18V range. Exceeding ±18V may degrade performance or reliability, and the DG509ACJ is not characterized beyond that range.
Does DG509ACJ support bidirectional signal flow?
Yes, DG509ACJ supports fully bidirectional analog signal flow on all terminals - S1A/S1B through S4A/S4B and DA/DB - with symmetrical on-resistance and capacitance. This allows the same device to function as either a multiplexer or demultiplexer without circuit redesign, preserving signal integrity in both directions.
What does "break-before-make" mean for DG509ACJ switching?
Break-before-make ensures that one differential switch pair fully opens before the next closes - with a guaranteed minimum 0.2μs open interval. For DG509ACJ, this prevents momentary short circuits between channels during address transitions, which is essential in fault-tolerant systems like aircraft HUDs where signal contention could cause display corruption.
Can DG509ACJ operate with a single 5V supply?
No, DG509ACJ requires dual ±4.5V to ±18V supplies and is not specified for single 5V operation. Its internal CMOS switch structure relies on symmetric rail referencing. For single 5V or ±5V applications, Maxim recommends the MAX338/MAX339 - the DG509ACJ will not function correctly or meet specifications under single-supply conditions.
Is DG509ACJ RoHS-compliant?
Yes, DG509ACJ is available in a lead(Pb)-free/RoHS-compliant plastic DIP package. To order the RoHS version, add a plus (+) suffix to the part number (i.e., DG509ACJ+). The base DG509ACJ part is also RoHS-compliant per Maxim's documentation, with exemption status confirmed in the original package data sheet.
DG509ACJ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Obsolete
- Switch Circuit:
- SP4T
- Multiplexer/Demultiplexer Circuit:
- 4:1
- Number of Circuits:
- 2
- On-State Resistance (Max):
- 450Ohm
- Channel-to-Channel Matching (ΔRon):
- 27Ohm
- Voltage - Supply, Single (V+):
- -
- Voltage - Supply, Dual (V±):
- ±4.5V ~ 18V
- Switch Time (Ton, Toff) (Max):
- 1.5µs, 1µs
- -3db Bandwidth:
- -
- Charge Injection:
- -
- Channel Capacitance (CS(off), CD(off)):
- 5pF, 12pF
- Current - Leakage (IS(off)) (Max):
- 1nA
- Crosstalk:
- -
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 16-PDIP
DG509ACJ FAQ
1.How can I place an order for DG509ACJ through Aetrix?
Please submit a Request for Quotation (RFQ) for DG509ACJ 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 DG509ACJ reliable?
The price and inventory of DG509ACJ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG509ACJ is usually 5 days.
3.What payment methods are accepted for DG509ACJ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG509ACJ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG509ACJ?
DG509ACJ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG509ACJ 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 DG509ACJ?
For technical support, including DG509ACJ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG509ACJ requirements.
6.How does Aetrix verify that DG509ACJ is sourced from the original manufacturer or authorized distributors?
All DG509ACJ 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 DG509ACJ meets industry standards.
7.What is the process for return or replacement of DG509ACJ?
All DG509ACJ units undergo pre-shipment inspection (PSI). If there is an issue with DG509ACJ, 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 DG509ACJ part is unused and in its original packaging.
Return procedure for DG509ACJ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DG509ACJ Tags
-
SN74LVC1G3157DBVR
Texas Instruments
-
SN74LVC1G66DBVR
Texas Instruments
-
SN74LVC1G66DCKR
Texas Instruments
-
SN74LVC1G3157DSFR
Texas Instruments
-
1P1G3157QDCKRQ1
Texas Instruments
-
SN74LVC2G66DCUR
Texas Instruments
-
SN74LV4052APWR
Texas Instruments
-
74HC4051D,653
Nexperia USA Inc.
-
SN74LV4051APWR
Texas Instruments
-
CD74HC4052PWR
Texas Instruments
-
CD74HC4051PWR
Texas Instruments
-
TS5A3166DBVR
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
