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Analog Devices Inc./Maxim Integrated DG442DJ+
- Part No.:
- DG442DJ+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-DIP (0.300", 7.62mm)
- Datasheet:
-
DG442DJ+.pdf
- Description:
- IC SWITCH QUAD SPST 16DIP
- Quantity:
- Payment:
- Shipping:
Inventory:1,186
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Product details
Overview
DG442DJ+ from Maxim Integrated is a quad, normally-open (NO), single-pole/single-throw (SPST) analog switch IC designed for precision signal routing in bipolar or single-supply systems. It features 85Ω max on-resistance, <5nA off-leakage at +85°C, 10pC max charge injection, 250ns max tON, and rail-to-rail analog signal handling from ±4.5V to ±20V or +10V to +30V - deployed in test equipment and audio-signal routing where channel matching and low distortion are critical.
For engineers reviewing the DG442DJ+ datasheet, DG442DJ+ pinout, DG442DJ+ application, or DG442DJ+ equivalent, key selection criteria include guaranteed rDS(ON) matching (4Ω max between channels), on-resistance flatness (9Ω max over signal range), TTL/CMOS logic compatibility, ESD tolerance (2000V min), and -40°C to +85°C industrial temperature operation.
Technical Context
The DG442DJ+ implements four independent SPST switches with active-high digital control inputs (IN1–IN4), each connecting its respective drain (Dx) to source (Sx) when asserted. Its silicon-gate 44V process enables robust operation across wide supply ranges while maintaining low leakage and tight on-resistance matching.
Switching behavior is bidirectional and symmetrical: signal paths support rail-to-rail analog voltages up to ±20V (bipolar) or +30V (unipolar), with guaranteed performance under both conditions. Charge injection is minimized via internal layout and process optimization, critical for sample-and-hold and multiplexer applications requiring low settling error.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| rDS(ON) max | 85Ω - ensures minimal signal attenuation and voltage drop in precision analog paths |
| rDS(ON) match | 4Ω max - guarantees consistent gain/attenuation across all four channels in multiplexed systems |
| rFLAT(ON) max | 9Ω max - maintains stable on-resistance across full analog input range, reducing harmonic distortion |
| Charge injection | 10pC max - limits voltage glitch at sample-hold node, enabling accurate DC-coupled acquisition |
| tON / tOFF | 250ns / 170ns max - supports high-speed signal switching in automated test and comms routing |
| Off-leakage @ +85°C | <5nA - preserves signal integrity in high-impedance sensor interfaces and battery-powered systems |
| Supply range | ±4.5V to ±20V or +10V to +30V - allows flexible integration into legacy bipolar or modern unipolar power domains |
Pinout & Package
Package: 16-pin plastic DIP (leaded, Pb-free per + suffix), with exposed pad not present (DIP variant).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 16, 9, 8 | IN1–IN4 | Digital control inputs; active-high logic enables corresponding SPST switch |
| 2, 15, 10, 7 | D1–D4 | Analog drain terminals - bidirectional signal path endpoints, connected to load or downstream circuitry |
| 3, 14, 11, 6 | S1–S4 | Analog source terminals - bidirectional signal path endpoints, typically tied to common signal bus or source |
| 4 | V− | Negative supply rail - must be connected for bipolar operation; tied to GND for single-supply use |
| 5 | GND | Logic and substrate reference ground - separate from analog signal return unless system design requires common reference |
| 12 | V+ | Positive supply rail - powers internal logic and switch core; also connects to substrate for latch-up immunity |
| 13 | N.C. | No internal connection - must remain unconnected; no routing or grounding required |
Key Features
| Feature | Design Value |
|---|---|
| Quad SPST NO configuration | Enables independent, non-overlapping signal routing without break-before-make timing constraints |
| Rail-to-rail analog handling | Supports full-scale signal swing from V− to V+, eliminating level-shifting in ±15V instrumentation front-ends |
| TTL/CMOS logic compatible | Accepts standard 0.8V/2.4V logic thresholds - interoperable with microcontrollers and FPGAs without interface buffers |
| 2000V ESD tolerance (HBM) | Withstands handling and board-level ESD events without protection diodes, reducing BOM count in ruggedized test gear |
| Low power consumption | 1.65mW typical - extends battery life in portable diagnostic and field-service equipment |
Applications
| Test Equipment Signal Routing | Audio-Signal Multiplexing |
|---|---|
|
Use Scenario: Automated test systems route multiple sensor outputs to shared ADC channels using time-division multiplexing. IC Role / Device Role / Timing Role: DG442DJ+ acts as a precision analog multiplexer front-end, selecting one of four differential inputs per cycle. Use Value: 4Ω rDS(ON) matching ensures uniform gain scaling across channels, minimizing calibration drift between measurements. |
Use Scenario: Studio-grade audio mixer routes line-level signals between input banks, effects processors, and output buses. IC Role / Device Role / Timing Role: DG442DJ+ serves as a silent, low-distortion analog switch matrix for channel assignment and patchbay reconfiguration. Use Value: 10pC charge injection prevents audible pop/click during real-time switching, preserving audio fidelity. |
| Battery-Powered Data Loggers | Military Radio Front-End Switching |
|
Use Scenario: Portable environmental monitor samples temperature, humidity, and gas sensors sequentially using shared signal conditioning. IC Role / Device Role / Timing Role: DG442DJ+ provides low-leakage (<5nA @ +85°C), low-power analog switching to extend operating time on coin-cell batteries. Use Value: Sub-µA quiescent current and rail-to-rail operation enable direct interfacing with low-voltage sensors without external biasing. |
Use Scenario: Tactical radio platform selects between antenna feeds, RF filters, and transceiver paths under harsh thermal and ESD conditions. IC Role / Device Role / Timing Role: DG442DJ+ functions as a hardened analog signal selector in RF front-end control logic. Use Value: 2000V HBM ESD rating and -40°C to +85°C operation ensure reliable switching in uncontrolled field environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADG442BRZ | 80Ω rDS(ON) max, 20pC charge injection, same 16-pin SOIC package but different pinout (IN/D/S assignments differ) | Higher charge injection may require additional hold capacitor sizing in sample-and-hold circuits | Select ADG442BRZ only if board layout accommodates revised pin mapping and system tolerates higher switching glitch |
| TS5A3157DCKR | Single-channel, 0.75Ω rDS(ON), 3.3V logic only, 6-pin SC70 package - not quad or pin-compatible | Requires four discrete devices and PCB area increase; unsuitable for space-constrained 4-channel designs | Consider TS5A3157DCKR only for new designs prioritizing ultra-low on-resistance over integration density and supply flexibility |
Compared with DG442DJ+, ADG442BRZ offers marginally lower on-resistance but lacks guaranteed rDS(ON) matching and has higher charge injection, while TS5A3157DCKR delivers superior rDS(ON) at the cost of channel count, supply range, and footprint efficiency - making DG442DJ+ optimal for industrial 4-channel routing where matching, leakage, and wide-supply operation are primary constraints.
Availability
DG442DJ+ is available at Aetrix Electronics and suitable for test equipment, audio-signal routing, and battery-operated systems requiring stable component supply, long-term industrial temperature support (-40°C to +85°C), and lead-free compliance.
Supply support for DG442DJ+ 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 high-performance analog, mixed-signal, and power management ICs for industrial, communications, and computing applications.
The DG442DJ+ belongs to Maxim's precision analog switch product line, engineered for low-distortion, low-leakage signal routing in instrumentation, test, and ruggedized embedded systems.
FAQ
What is the maximum analog signal voltage range supported by DG442DJ+?
The DG442DJ+ supports rail-to-rail analog signals from V− to V+. With bipolar supplies, this is ±4.5V to ±20V (e.g., ±15V yields ±15V signal swing). With single supply, it operates from +10V to +30V, where V− is tied to GND and analog range is 0V to V+. The absolute maximum analog voltage at any S or D terminal is limited to (V− − 2V) to (V+ + 2V) per absolute ratings.
Does DG442DJ+ require external pull-up or pull-down resistors on its IN pins?
No, DG442DJ+ does not require external pull-up or pull-down resistors on IN1–IN4. Its TTL/CMOS-compatible inputs have defined thresholds (VINL ≤ 0.8V, VINH ≥ 2.4V) and low input current (±5nA typical), allowing direct connection to microcontroller GPIOs or logic gates. Internal input structure ensures stable logic state without external biasing under normal operating conditions.
Can DG442DJ+ operate with unbalanced supplies like +24V and -5V?
Yes, DG442DJ+ can operate with unbalanced supplies such as +24V and -5V, provided the difference between V+ and V− does not exceed +44V and each supply remains within its absolute rating (V+ ≤ 44V referenced to V−, GND ≤ 25V referenced to V−). Performance parameters like rDS(ON) and leakage remain valid, though analog range becomes asymmetric (e.g., -5V to +24V).
What is the significance of the N.C. pin (pin 13) on DG442DJ+?
Pin 13 on DG442DJ+ is labeled N.C. (Not Internally Connected) and must remain unconnected - neither grounded nor tied to any voltage. It is electrically isolated from all internal circuitry. Connecting it may introduce noise coupling or violate package thermal/mechanical design rules. This pin exists for mechanical symmetry and package compatibility, not functional use.
How does DG442DJ+ compare to the older DG442DJ in terms of performance?
The DG442DJ+ is the lead-free, enhanced version of DG442DJ, with identical electrical specifications and pinout. Key improvements include 2000V HBM ESD tolerance (vs. unspecified in earlier revisions), tighter rDS(ON) matching (4Ω max vs. 8Ω in legacy versions), improved off-leakage (<5nA at +85°C), and guaranteed rFLAT(ON) (9Ω max). All enhancements are documented in Rev 5 (2009) datasheet and apply directly to DG442DJ+.
DG442DJ+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Switch Circuit:
- SPST - NO
- Multiplexer/Demultiplexer Circuit:
- 1:1
- Number of Circuits:
- 4
- On-State Resistance (Max):
- 85Ohm
- Channel-to-Channel Matching (ΔRon):
- 4Ohm (Max)
- Voltage - Supply, Single (V+):
- 10V ~ 30V
- Voltage - Supply, Dual (V±):
- ±4.5V ~ 20V
- Switch Time (Ton, Toff) (Max):
- 250ns, 170ns
- -3db Bandwidth:
- -
- Charge Injection:
- 5pC
- Channel Capacitance (CS(off), CD(off)):
- 4pF, 4pF
- Current - Leakage (IS(off)) (Max):
- 500pA
- Crosstalk:
- -100dB @ 1MHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 16-PDIP
DG442DJ+ FAQ
1.How can I place an order for DG442DJ+ through Aetrix?
Please submit a Request for Quotation (RFQ) for DG442DJ+ 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 DG442DJ+ reliable?
The price and inventory of DG442DJ+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG442DJ+ is usually 5 days.
3.What payment methods are accepted for DG442DJ+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG442DJ+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG442DJ+?
DG442DJ+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG442DJ+ 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 DG442DJ+?
For technical support, including DG442DJ+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG442DJ+ requirements.
6.How does Aetrix verify that DG442DJ+ is sourced from the original manufacturer or authorized distributors?
All DG442DJ+ 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 DG442DJ+ meets industry standards.
7.What is the process for return or replacement of DG442DJ+?
All DG442DJ+ units undergo pre-shipment inspection (PSI). If there is an issue with DG442DJ+, 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 DG442DJ+ part is unused and in its original packaging.
Return procedure for DG442DJ+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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