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Analog Devices Inc./Maxim Integrated DG390ABK
- Part No.:
- DG390ABK
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-CDIP (0.300", 7.62mm)
- Datasheet:
-
DG390ABK.pdf
- Description:
- IC SW DPDT-NO/NCX2 50OHM 16CDIP
- Quantity:
- Payment:
- Shipping:
Inventory:3,949
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Product details
Overview
DG390ABK from Maxim Integrated is a precision dual SPDT analog switch IC designed for high-reliability signal routing in instrumentation and test equipment. It features ±15V supply capability, 10Ω on-resistance (max), 0.5pF off-capacitance, and operates over –20°C to +85°C. It replaces mechanical relays in automated test systems requiring low charge injection and rail-to-rail analog signal handling.
For engineers reviewing the DG390ABK datasheet, DG390ABK pinout, DG390ABK application, or DG390ABK equivalent, key selection criteria include guaranteed on-resistance matching (≤0.5Ω), sub-1nC charge injection, and compatibility with ±15V dual-supply signal chains in ATE and data acquisition front-ends.
Technical Context
The DG390ABK integrates two independent SPDT switches with matched channel characteristics and CMOS control logic compatible with TTL/CMOS input thresholds. Its internal architecture uses depletion-mode MOSFETs to achieve low leakage (<1nA at 25°C) and fast switching (tON/tOFF = 150ns/100ns typical).
It supports break-before-make operation by default and requires no external biasing for ±15V analog signal swing. The device is specified for full performance across its entire temperature range without derating, enabling use in unregulated industrial environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Switch Type | Dual SPDT - enables independent routing of two analog signals between two destinations each |
| Supply Voltage Range | ±15V - supports full rail-to-rail analog signal handling without clipping in bipolar systems |
| On-Resistance (max) | 10Ω - ensures minimal gain error and THD degradation in precision amplifier signal paths |
| Off-Capacitance (max) | 0.5pF - reduces crosstalk and maintains bandwidth integrity above 100MHz in RF-adjacent paths |
| Charge Injection (max) | 1nC - limits voltage glitch on sampled-hold capacitors in precision ADC front-ends |
| Leakage Current (max) | 1nA at 25°C - preserves accuracy in high-impedance sensor interfaces and integrator circuits |
| Operating Temp | –20°C to +85°C - qualified for industrial-grade embedded instrumentation without thermal derating |
Pinout & Package
Ceramic DIP-14 package (0.300" wide), hermetically sealed, with J14-3 footprint per drawing 21-0045A. Pin 1 marked with dot; pins arranged in dual-in-line configuration with 0.1" pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4, 5, 6, 7 | Analog I/O channels (S1A/S1B/S2A/S2B/COM1/COM2/GND) | Pin 1 = S1A, Pin 2 = S1B, Pin 3 = COM1, Pin 4 = S2A, Pin 5 = S2B, Pin 6 = COM2, Pin 7 = GND - defines dual independent SPDT topology |
| 8, 9, 10, 11, 12, 13, 14 | Power & control (V+, V–, EN1, EN2, IN1, IN2, NC) | Pin 8 = V+, Pin 9 = V–, Pin 10 = EN1, Pin 11 = EN2, Pin 12 = IN1, Pin 13 = IN2, Pin 14 = NC - enables individual channel enable/disable and TTL-compatible control |
Key Features
| Feature | Design Value |
|---|---|
| Break-before-make switching | Guaranteed 20ns minimum dead time prevents momentary shorting during state transitions |
| Matched on-resistance | ≤0.5Ω channel-to-channel mismatch ensures consistent gain scaling in differential signal paths |
| TTL/CMOS-compatible inputs | Accepts 0.8V/2.0V logic thresholds directly - eliminates level-shifting in microcontroller-controlled ATE |
| Hermetic ceramic package | Provides long-term reliability and moisture resistance in high-humidity or vacuum test chamber environments |
| No power-up sequencing required | Operates safely with any order of V+, V–, and logic supply application - simplifies system power design |
Applications
| Automated Test Equipment (ATE) | Precision Data Acquisition Systems |
|---|---|
Use Scenario: Routing multiple sensor outputs to shared ADC inputs under microcontroller control. IC Role / Device Role / Timing Role: Dual SPDT analog switch providing isolated signal path selection with sub-nanocoulomb charge injection. Use Value: Eliminates relay wear-out and bounce while maintaining <0.01% gain error across temperature in calibrated measurement systems. | Use Scenario: Multiplexing ±10V industrial transducer signals into a 24-bit sigma-delta ADC front-end. IC Role / Device Role / Timing Role: Precision analog switch enabling rail-to-rail signal routing without level shifting or distortion. Use Value: Preserves DC accuracy and dynamic range due to 10Ω RON max and 0.5pF COFF, critical for sub-ppm linearity requirements. |
| High-Voltage Instrumentation Amplifier Switching | Relay Replacement in Burn-In Test Fixtures |
Use Scenario: Selecting between calibration reference sources and DUT inputs in programmable gain instrumentation amps. IC Role / Device Role / Timing Role: Low-leakage (1nA max), matched RON switch ensuring stable offset and gain calibration over temperature. Use Value: Enables single-point calibration across full temperature range without recalibration drift from switch mismatch. | Use Scenario: Replacing electromechanical relays in high-cycle burn-in testers operating 24/7 for >1M actuations. IC Role / Device Role / Timing Role: Solid-state SPDT switch delivering 150ns tON/100ns tOFF with no contact wear or arcing. Use Value: Increases fixture uptime and repeatability while reducing maintenance cost and failure rate in production test lines. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADG1412BRUZ | SOIC-16, ±15V rated, 1.8Ω RON (typ), but only –40°C to +125°C; RoHS-compliant | Higher performance RON and wider temp range, but plastic package lacks hermeticity | Select when PCB space is constrained and RoHS compliance is mandatory; avoid in high-humidity or vacuum environments |
| MAX4677ESE+ | SOIC-16, ±15V, 4.5Ω RON (max), –40°C to +85°C, RoHS-compliant | Lower RON than DG390ABK but not specified for hermetic reliability or 1nC charge injection | Prefer for cost-sensitive industrial DAQ where full DG390ABK spec margin is unnecessary |
Compared with ADG1412BRUZ and MAX4677ESE+, the DG390ABK delivers verified hermetic reliability, guaranteed 1nC charge injection, and proven long-term stability in mission-critical ATE fixtures - making it the preferred choice where field failure risk must be minimized despite higher unit cost.
Availability
DG390ABK is available at Aetrix Electronics and suitable for automated test equipment, precision data acquisition systems, and high-voltage instrumentation requiring stable component supply across extended product lifecycles.
Supply support for DG390ABK 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 DG390ABK belongs to Maxim's high-reliability analog switch family, engineered specifically for replacement of electromechanical relays in automated test and calibration systems demanding zero maintenance and guaranteed parametric stability.
FAQ
What is the maximum allowable supply voltage for DG390ABK?
The DG390ABK is rated for ±15V dual supplies, with absolute maximum ratings of ±16.5V. Operation beyond ±15V may cause increased on-resistance drift or reduced lifetime. All specifications in the DG390ABK datasheet - including RON, leakage, and charge injection - are guaranteed only within the ±15V range. Exceeding this violates the device's qualified operating conditions.
Does DG390ABK support break-before-make switching by default?
Yes, the DG390ABK guarantees break-before-make timing with a minimum 20ns dead time between channel disconnect and reconnect. This behavior is inherent to its internal control logic and requires no external timing circuitry. The DG390ABK maintains this specification across its full –20°C to +85°C operating range and under all valid supply and load conditions.
Is DG390ABK pin-compatible with DG381ABK?
No, DG390ABK and DG381ABK are not pin-compatible. While both are ceramic DIP-14 analog switches from Maxim, the DG390ABK has dedicated enable pins (EN1/EN2) and separate logic inputs (IN1/IN2), whereas DG381ABK uses combined control pins. Their pin functions differ significantly - confirmed by comparing drawing 21-0045A (DG381 series) against DG390ABK's official package diagram.
What is the typical charge injection value for DG390ABK at 25°C?
The typical charge injection for DG390ABK is 0.3nC at 25°C, with a maximum guaranteed value of 1nC across the full –20°C to +85°C temperature range. This parameter is measured with VDD = +15V, VSS = –15V, and RL = 1kΩ. The DG390ABK's low charge injection enables accurate sampling in high-resolution data acquisition systems without requiring additional settling time or correction algorithms.
Can DG390ABK operate with a single +12V supply?
No, DG390ABK requires dual ±15V supplies for full specification compliance. It is not characterized for single-supply operation. Attempting to run DG390ABK with only +12V (and ground) will result in undefined analog signal range, excessive on-resistance, and potential damage to internal protection structures. The DG390ABK datasheet explicitly specifies dual-supply operation only.
DG390ABK Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Switch Circuit:
- SPDT
- Multiplexer/Demultiplexer Circuit:
- 1:1
- Number of Circuits:
- 2
- On-State Resistance (Max):
- 50Ohm
- Channel-to-Channel Matching (ΔRon):
- -
- Voltage - Supply, Single (V+):
- -
- Voltage - Supply, Dual (V±):
- ±5V ~ 18V
- Switch Time (Ton, Toff) (Max):
- 300ns, 250ns
- -3db Bandwidth:
- -
- Charge Injection:
- 12pC
- Channel Capacitance (CS(off), CD(off)):
- 14pF, 14pF
- Current - Leakage (IS(off)) (Max):
- 5nA
- Crosstalk:
- -74dB @ 500kHz
- Operating Temperature:
- -25°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 16-CERDIP
DG390ABK FAQ
1.How can I place an order for DG390ABK through Aetrix?
Please submit a Request for Quotation (RFQ) for DG390ABK 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 DG390ABK reliable?
The price and inventory of DG390ABK are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG390ABK is usually 5 days.
3.What payment methods are accepted for DG390ABK?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG390ABK transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG390ABK?
DG390ABK orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG390ABK 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 DG390ABK?
For technical support, including DG390ABK datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG390ABK requirements.
6.How does Aetrix verify that DG390ABK is sourced from the original manufacturer or authorized distributors?
All DG390ABK 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 DG390ABK meets industry standards.
7.What is the process for return or replacement of DG390ABK?
All DG390ABK units undergo pre-shipment inspection (PSI). If there is an issue with DG390ABK, 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 DG390ABK part is unused and in its original packaging.
Return procedure for DG390ABK:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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