Analog Devices Inc./Maxim Integrated DG408CJ+
- Part No.:
- DG408CJ+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-DIP (0.300", 7.62mm)
- Datasheet:
-
DG408CJ+.pdf
- Description:
- IC MUX 8:1 100OHM 16DIP
- Quantity:
- Payment:

- Shipping:

Inventory:150
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Product details
Overview
DG408CJ+ from Maxim Integrated is a precision 1-of-8 CMOS analog multiplexer/demultiplexer designed for bidirectional signal routing in data-acquisition and test systems. It features guaranteed 100Ω max on-resistance, 8Ω max channel-to-channel matching, 15pC max charge injection, rail-to-rail analog signal handling (±15V dual or +12V single supply), and TTL/CMOS-compatible digital control.
For engineers reviewing the DG408CJ+ datasheet, DG408CJ+ pinout, DG408CJ+ application, or DG408CJ+ equivalent, this device is selected for high-accuracy analog switching where low leakage (<5nA at +85°C), flat on-resistance over signal range (9Ω max), and ESD robustness (>2000V) are critical in instrumentation and guidance systems.
Technical Context
The DG408CJ+ implements an 8-channel analog switch matrix with 3-bit binary address decoding (A0–A2) and active-low enable (EN), supporting both multiplexing and demultiplexing modes. Its CMOS transmission-gate architecture ensures symmetrical on-resistance and bidirectional conduction without polarity constraints.
It operates across dual supplies (±5V to ±20V) or single supply (+5V to +30V), with internal clamping diodes protecting digital and analog pins. Switch timing is characterized with 100ns typical enable turn-on (tON(EN)) and 150ns typical transition time (tTRANS) under ±15V conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-resistance (rDS(ON)) | 100Ω max - ensures minimal voltage drop and gain error in precision signal paths |
| On-resistance matching | 8Ω max - enables accurate ratio-metric measurements across channels |
| Charge injection | 15pC max - reduces sampling error in sample-and-hold circuits |
| Analog signal range | ±15V (dual) or 0–12V (single) - supports full-rail operation with common industrial supplies |
| Input leakage (off-state) | 5nA max at +85°C - maintains high impedance integrity in high-impedance sensor interfaces |
| ESD protection | >2000V per MIL-STD-883 Method 3015.7 - improves board-level reliability in handling and assembly |
| Enable turn-on time | 150ns typ - enables fast channel switching in automated test equipment |
Pinout & Package
Package: 16-pin plastic DIP (P16-2), through-hole mounting, 0°C to +70°C operating temperature range.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 15, 16 | A0, A1, A2 | 3-bit binary address inputs selecting one of eight analog channels |
| 2 | EN | Active-low enable controlling global switch activation/deactivation |
| 3 | V− | Negative supply rail for dual-supply operation or ground reference for single-supply mode |
| 4–7, 9–12 | S1–S4, S5–S8 | Bidirectional analog input terminals (8 total), each independently routable to output |
| 8 | D | Common bidirectional analog output/input terminal shared across all channels |
| 13 | V+ | Positive supply rail supporting ±5V to ±20V or +5V to +30V operation |
| 14 | GND | Ground reference for logic interface and supply return path |
Key Features
| Feature | Design Value |
|---|---|
| PIN-COMPATIBLE UPGRADE | Direct replacement for legacy DG408 with identical pinout and footprint-no PCB redesign required |
| Rail-to-rail signal handling | Supports analog signals spanning full V+ to V− range, enabling use with ±15V op-amps and ADC drivers |
| Guaranteed on-resistance flatness | 9Ω max variation across entire signal range-critical for linearity in precision measurement front-ends |
| TTL/CMOS-compatible control | Accepts standard logic thresholds (VAL ≤ 0.8V, VAH ≥ 2.4V) without level-shifting circuitry |
| Low power consumption | 1.25mW max - minimizes self-heating and thermal drift in densely packed systems |
Applications
| Sample-and-Hold Circuits | Test Equipment |
|---|---|
Use Scenario: Multiplexing multiple sensor outputs into a single high-precision ADC input with minimal settling error. IC Role / Device Role / Timing Role: Analog multiplexer providing channel selection and low-charge-injection switching for acquisition phase control. Use Value: 15pC max charge injection prevents voltage step errors on hold capacitors, preserving DC accuracy. | Use Scenario: Automated signal routing in benchtop multimeters and functional testers requiring rapid channel reconfiguration. IC Role / Device Role / Timing Role: High-speed analog switch enabling sequential stimulus/response measurement across DUT ports. Use Value: 150ns enable turn-on time and 100Ω on-resistance support sub-microsecond channel switching with low insertion loss. |
| Guidance and Control Systems | Audio Signal Routing |
Use Scenario: Selecting among redundant inertial measurement unit (IMU) analog outputs in flight control electronics. IC Role / Device Role / Timing Role: Fault-tolerant analog multiplexer ensuring uninterrupted signal path during sensor validation or failover. Use Value: 5nA max off-leakage at +85°C prevents signal corruption in high-impedance feedback loops under extended thermal stress. | Use Scenario: Dynamic routing of line-level audio signals between mixers, effects processors, and outputs in pro-audio gear. IC Role / Device Role / Timing Role: Bidirectional analog switch enabling flexible patchbay functionality with minimal crosstalk. Use Value: −92dB crosstalk and −75dB off-isolation preserve channel separation and prevent audible bleed between sources. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADG408BRZ | 100Ω max rDS(ON), but 25pC charge injection (vs. 15pC); 8Ω matching not guaranteed | Higher charge injection limits use in ultra-low-error sample-and-hold; suitable for general-purpose routing | Select ADG408BRZ only when lower cost outweighs need for <15pC charge injection and guaranteed matching |
| TS5A3157DCKR | Single 1-of-2 switch (not 1-of-8); 0.7Ω rDS(ON) but limited to +5.5V supply and 3.6V analog range | Not functionally equivalent-requires parallel implementation for 8-channel capability and cannot replace DG408CJ+ in high-voltage or multi-channel systems | Use TS5A3157DCKR only in low-voltage, space-constrained designs where single-pole routing suffices |
Compared with ADG408BRZ and TS5A3157DCKR, the DG408CJ+ uniquely delivers guaranteed 8Ω channel matching, 15pC charge injection, and ±20V dual-supply operation in a single 16-pin DIP package-making it irreplaceable for precision, high-voltage, multi-channel analog switching where specification compliance is non-negotiable.
Availability
DG408CJ+ is available at Aetrix Electronics and suitable for data-acquisition systems, test equipment, and guidance and control systems requiring stable component supply and long-term manufacturability.
Supply support for DG408CJ+ 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 semiconductor company specializing in high-performance analog, mixed-signal, and power-management ICs for industrial, communications, and computing applications.
The DG408CJ+ belongs to Maxim's precision analog multiplexer product line, engineered specifically for applications demanding low distortion, guaranteed matching, and robust operation across wide supply and temperature ranges.
FAQ
What supply voltages does the DG408CJ+ support?
The DG408CJ+ operates with dual supplies ranging from ±5V to ±20V or a single supply from +5V to +30V. When using single-supply mode, V− must be connected to GND. The device maintains specified performance-including 100Ω max on-resistance and 15pC max charge injection-across this full range, making DG408CJ+ suitable for both industrial ±15V systems and battery-powered +12V applications.
Is the DG408CJ+ pin-compatible with the original DG408?
Yes, the DG408CJ+ is a pin-compatible plug-in upgrade for the industry-standard DG408. All 16 pins-including address lines (A0–A2), enable (EN), analog I/O (S1–S8, D), and supplies (V+, V−, GND)-match exactly. No PCB layout changes are needed to migrate from legacy DG408 to DG408CJ+, while gaining improved specs including guaranteed 8Ω channel matching and 15pC max charge injection.
What is the maximum leakage current of the DG408CJ+ at elevated temperature?
The DG408CJ+ guarantees input off-leakage current of less than 5nA at +85°C, verified across 100% production testing. This value applies to both source-off (IS(OFF)) and drain-off (ID(OFF)) terminals. At +25°C, typical leakage is below 0.02nA. This low leakage preserves signal integrity in high-impedance sensor interfaces and sample-and-hold circuits where even picoamp-level currents cause measurable error.
Does the DG408CJ+ support bidirectional analog signal flow?
Yes, the DG408CJ+ supports fully bidirectional analog signal flow on all channels (S1–S8 and D). Its CMOS transmission-gate structure provides symmetrical on-resistance regardless of signal direction, enabling use as either a multiplexer (multiple inputs → one output) or demultiplexer (one input → multiple outputs). This bidirectionality is intrinsic to DG408CJ+ design and requires no external configuration.
How does the DG408CJ+ handle ESD events?
The DG408CJ+ is rated for ESD protection exceeding 2000V per MIL-STD-883 Method 3015.7, verified by production testing. This robustness stems from integrated clamping diodes on all analog and digital pins referenced to V+ and V−. These diodes safely shunt transient current without latch-up or parametric shift, allowing DG408CJ+ to withstand handling and board-level ESD events common in manufacturing and field environments.
DG408CJ+ 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):
- 100Ohm
- Channel-to-Channel Matching (ΔRon):
- 1.5Ohm
- Voltage - Supply, Single (V+):
- 5V ~ 30V
- Voltage - Supply, Dual (V±):
- ±5V ~ 20V
- Switch Time (Ton, Toff) (Max):
- 150ns, 150ns
- -3db Bandwidth:
- -
- Charge Injection:
- 2pC
- Channel Capacitance (CS(off), CD(off)):
- 3pF, 26pF
- Current - Leakage (IS(off)) (Max):
- 500pA
- Crosstalk:
- -92dB @ 100kHz
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 16-PDIP
DG408CJ+ FAQ
1.How can I place an order for DG408CJ+ through Aetrix?
Please submit a Request for Quotation (RFQ) for DG408CJ+ 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 DG408CJ+ reliable?
The price and inventory of DG408CJ+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG408CJ+ is usually 5 days.
3.What payment methods are accepted for DG408CJ+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG408CJ+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG408CJ+?
DG408CJ+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG408CJ+ 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 DG408CJ+?
For technical support, including DG408CJ+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG408CJ+ requirements.
6.How does Aetrix verify that DG408CJ+ is sourced from the original manufacturer or authorized distributors?
All DG408CJ+ 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 DG408CJ+ meets industry standards.
7.What is the process for return or replacement of DG408CJ+?
All DG408CJ+ units undergo pre-shipment inspection (PSI). If there is an issue with DG408CJ+, 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 DG408CJ+ part is unused and in its original packaging.
Return procedure for DG408CJ+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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