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Analog Devices Inc./Maxim Integrated DG419DJ+
- Part No.:
- DG419DJ+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
DG419DJ+.pdf
- Description:
- IC SWITCH SPDT X 1 35OHM 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:1,765
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Product details
Overview
DG419DJ+ from Maxim Integrated is a precision SPDT analog switch with normally closed (S1) and normally open (S2) channels, 35Ω max on-resistance, <5nA off-leakage at +85°C, and 175ns max tON - designed for rail-to-rail signal routing in battery-operated test equipment and audio systems.
For engineers reviewing the DG419DJ+ datasheet, DG419DJ+ pinout, DG419DJ+ application, or DG419DJ+ equivalent, key selection criteria include guaranteed 3Ω max RDS(ON) matching between S1/S2, 4Ω max RFLAT(ON), 10pC max charge injection, ±4.5V to ±20V dual-supply operation, and 8-pin PDIP package compatibility.
Technical Context
The DG419DJ+ implements a silicon-gate CMOS architecture optimized for low distortion analog switching across full rail-to-rail input ranges. Its dual-supply design supports ±4.5V to ±20V operation with TTL/CMOS-compatible logic inputs referenced to VL, and guarantees matched on-resistance and flatness only under bipolar supply conditions.
Switching behavior follows break-before-make timing (13ns typ), with internal clamping diodes protecting S/D terminals against overvoltage. Charge injection is minimized via matched transistor geometry, enabling accurate sample-and-hold performance without external correction circuitry.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| RDS(ON) max | 35Ω - ensures minimal signal attenuation and voltage drop in precision analog paths |
| ∆RDS(ON) match | 3Ω max - enables matched gain/attenuation in differential or dual-path signal routing |
| RFLAT(ON) | 4Ω max - maintains consistent channel resistance across full ±15.5V analog range |
| Charge injection | 10pC max - limits sampling error in high-impedance hold capacitors (e.g., ≥10nF) |
| tON / tOFF | 175ns / 145ns max - supports >1MHz multiplexed signal acquisition without timing skew |
| Off-leakage @ +85°C | <5nA - preserves DC accuracy in long-duration sample-and-hold or sensor front-ends |
| ESD tolerance | 2000V min (HBM) - meets industrial handling requirements without external protection |
Pinout & Package
Package: 8-pin plastic DIP (PDIP), 0.300" wide, through-hole mount, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | S1 (Source 1) | Normally closed analog terminal - conducts when IN = LOW |
| 2 | S2 (Source 2) | Normally open analog terminal - conducts when IN = HIGH |
| 3 | GND | Logic ground reference for VL and digital inputs |
| 4 | V+ | Analog positive supply - sets upper rail for signal handling up to V+ − 0.3V |
| 5 | VL | Logic supply - must be +5V for TTL compatibility or tied to V+ for CMOS levels |
| 6 | IN | Digital control input - active-HIGH logic selects S2 path; active-LOW selects S1 path |
| 7 | V− | Analog negative supply - sets lower rail for signal handling down to V− + 0.3V |
| 8 | D | Common drain terminal - bidirectional signal I/O shared by both S1 and S2 switches |
Key Features
| Feature | Design Value |
|---|---|
| Guaranteed RDS(ON) matching | 3Ω max between S1 and S2 - eliminates gain mismatch in dual-channel instrumentation |
| Rail-to-rail analog range | Supports signals from V− + 0.3V to V+ − 0.3V - enables full dynamic range utilization in ±15V systems |
| Bipolar/single-supply flexibility | Operates from ±4.5V to ±20V or +10V to +30V - simplifies power architecture in mixed-signal PCBs |
| Low charge injection | 10pC max - reduces settling error in 12-bit+ data acquisition with ≤100kΩ source impedance |
| TTL/CMOS logic compatibility | VL pin configurable for +5V (TTL) or V+ (CMOS) - interfaces directly with microcontrollers and FPGAs |
Applications
| Sample-and-Hold Circuits | Audio Signal Routing |
|---|---|
Use Scenario: Precision DC-coupled sampling of sensor outputs (e.g., thermocouples, strain gauges) into ADC front-ends. IC Role / Device Role / Timing Role: SPDT switch selects between calibration reference and active sensor path during hold phase. Use Value: 10pC charge injection and <5nA leakage ensure ≤0.5 LSB error in 16-bit 100kSPS acquisition over temperature. | Use Scenario: Channel selection in professional audio mixers with unbalanced line-level inputs. IC Role / Device Role / Timing Role: Bidirectional analog switch routes microphone or instrument signals to processing stages. Use Value: 35Ω RDS(ON) and 4Ω RFLAT(ON) maintain THD < -95dB across 20Hz–20kHz with ±12V supplies. |
| Test Equipment | Battery-Operated Systems |
Use Scenario: Multiplexing multiple DUT signals into shared measurement circuitry in automated test fixtures. IC Role / Device Role / Timing Role: High-isolation SPDT switch isolates unused channels to prevent crosstalk and loading. Use Value: 85dB crosstalk rejection and 68dB off-isolation eliminate inter-channel interference at 1MHz. | Use Scenario: Power domain switching and sensor signal gating in portable medical monitors. IC Role / Device Role / Timing Role: Low-quiescent SPDT switch enables selective activation of analog subsystems to extend battery life. Use Value: 35µW max power consumption and <5nA leakage at +85°C minimize standby current in Li-ion-powered designs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar SPDT analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADG1419BRZ | 2.5Ω RDS(ON) typ, but 15pC charge injection; requires ±15V only, no single-supply support | Better on-resistance for low-voltage precision, but higher charge injection limits sample-rate in high-resolution SAR ADCs | Select ADG1419BRZ only if system uses fixed ±15V rails and prioritizes RDS(ON) over charge injection |
| TS5A3159DCKR | 0.75Ω RDS(ON) typ, but 30pC charge injection; rated only to +85°C, no MIL-grade variants | Lower on-resistance suits low-voltage audio, but higher leakage and charge injection reduce DC accuracy in industrial environments | Choose TS5A3159DCKR for cost-sensitive consumer audio where ±12V operation and 12-bit accuracy suffice |
Compared with DG419DJ+, ADG1419BRZ offers lower conduction loss but sacrifices charge injection performance critical for sample-and-hold fidelity, while TS5A3159DCKR delivers ultra-low RDS(ON) at the expense of leakage and ESD robustness - making DG419DJ+ the balanced choice for industrial test and battery-powered instrumentation requiring guaranteed matching and temperature-stable leakage.
Availability
DG419DJ+ is available at Aetrix Electronics and suitable for test equipment, battery-operated systems, audio signal routing, and sample-and-hold circuits requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for DG419DJ+ 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 and mixed-signal ICs for industrial, medical, and communications applications, with emphasis on reliability and parametric guarantee.
The DG419DJ+ belongs to Maxim's legacy precision analog switch family, engineered specifically for high-fidelity signal routing in environments demanding guaranteed RDS(ON) matching, low leakage over temperature, and robust ESD tolerance.
FAQ
What supply voltage ranges does the DG419DJ+ support?
The DG419DJ+ operates from ±4.5V to ±20V bipolar supplies or +10V to +30V single supply (with V− tied to GND). It is not rated for unipolar supplies below +10V or bipolar supplies outside the specified ranges. The DG419DJ+ maintains guaranteed RDS(ON) matching and flatness only under bipolar conditions per datasheet Note 4.
Does the DG419DJ+ support rail-to-rail analog signal handling?
Yes, the DG419DJ+ supports rail-to-rail analog signals from V− + 0.3V to V+ − 0.3V when using bipolar supplies. This capability is enabled by its silicon-gate CMOS process and internal level-shifting design. The DG419DJ+ achieves this without external biasing, making it suitable for ±15V systems common in test and industrial equipment.
What is the maximum guaranteed on-resistance matching between S1 and S2 in the DG419DJ+?
The DG419DJ+ guarantees ∆RDS(ON) ≤ 3Ω between its S1 and S2 channels under bipolar supply operation (±4.5V to ±20V), as confirmed in the Electrical Characteristics table. This matching is not guaranteed under single-supply conditions. The DG419DJ+ datasheet explicitly restricts this specification to bipolar operation per Note 4.
How does the DG419DJ+ handle logic-level compatibility?
Logic-level compatibility for the DG419DJ+ is set via the VL pin: connect VL to +5V for TTL compatibility (VINH = 2.4V, VINL = 0.8V), or tie VL to V+ for CMOS-level inputs. The DG419DJ+ accepts logic signals referenced to GND and does not require level translation when interfacing with standard microcontrollers or FPGAs operating at 3.3V or 5V.
Is the DG419DJ+ pinout compatible with older DG419 variants?
Yes, the DG419DJ+ shares identical pinout and functionality with all industry-standard DG419 variants (e.g., DG419CJ, DG419DY), including the same 8-pin DIP layout, terminal assignments, and truth table behavior. The DG419DJ+ is a direct replacement for prior-generation DG419 devices in existing PCB designs, requiring no layout changes.
DG419DJ+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Active
- Switch Circuit:
- SPDT
- Multiplexer/Demultiplexer Circuit:
- 2:1
- Number of Circuits:
- 1
- On-State Resistance (Max):
- 35Ohm
- Channel-to-Channel Matching (ΔRon):
- 3Ohm (Max)
- Voltage - Supply, Single (V+):
- 10V ~ 30V
- Voltage - Supply, Dual (V±):
- ±4.5V ~ 20V
- Switch Time (Ton, Toff) (Max):
- 175ns, 145ns
- -3db Bandwidth:
- -
- Charge Injection:
- 3pC
- Channel Capacitance (CS(off), CD(off)):
- 8pF, 8pF
- Current - Leakage (IS(off)) (Max):
- 250pA
- Crosstalk:
- -85dB @ 1MHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 8-PDIP
DG419DJ+ FAQ
1.How can I place an order for DG419DJ+ through Aetrix?
Please submit a Request for Quotation (RFQ) for DG419DJ+ 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 DG419DJ+ reliable?
The price and inventory of DG419DJ+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG419DJ+ is usually 5 days.
3.What payment methods are accepted for DG419DJ+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG419DJ+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG419DJ+?
DG419DJ+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG419DJ+ 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 DG419DJ+?
For technical support, including DG419DJ+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG419DJ+ requirements.
6.How does Aetrix verify that DG419DJ+ is sourced from the original manufacturer or authorized distributors?
All DG419DJ+ 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 DG419DJ+ meets industry standards.
7.What is the process for return or replacement of DG419DJ+?
All DG419DJ+ units undergo pre-shipment inspection (PSI). If there is an issue with DG419DJ+, 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 DG419DJ+ part is unused and in its original packaging.
Return procedure for DG419DJ+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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