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Analog Devices Inc./Maxim Integrated DG212CY
- Part No.:
- DG212CY
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
DG212CY.pdf
- Description:
- IC SW SPST-NOX4 175OHM 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:8,554
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Product details
Overview
DG212CY from Maxim Integrated is a quad SPST normally open analog switch IC designed for precision signal routing in bipolar supply systems. It operates over ±4.5V to ±18V, delivers 115Ω typical on-resistance at ±15V, guarantees break-before-make switching, and supports bidirectional analog conduction with no output offset. It is used in programmable gain amplifiers and automatic test equipment where rail-to-rail analog signal integrity is required.
For engineers reviewing the DG212CY datasheet, DG212CY pinout, DG212CY application, or DG212CY equivalent, key selection considerations include its guaranteed ±4.5V–±18V dual-supply operation, absence of VL logic supply requirement, nonlatching behavior during power-off signal presence, CMOS/TTL compatibility, and 16-pin SOIC package with verified pin mapping for IN1–IN4, D1–D4, S1–S4, V+, V−, GND, and N.C.
Technical Context
The DG212CY implements monolithic low-power CMOS switch architecture with four independent SPST channels, each featuring symmetrical source/drain terminals and guaranteed break-before-make timing to prevent signal shorting during state transitions. Its control inputs are inverted relative to the DG201/DG211 family, and it eliminates the need for a separate VL logic supply while maintaining full compatibility with legacy control logic levels.
It provides rail-to-rail analog signal handling (±15V range), exhibits essentially constant RDS(ON) across the full analog input span, and maintains sub-5nA off-leakage at ±14V. The device remains nonlatching even when power supplies are disconnected while analog signals remain applied - a critical feature for fault-tolerant industrial and test systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Analog Signal Range | ±15V - Supports full rail-to-rail analog signal routing without clipping or distortion in ±15V systems. |
| RDS(ON) | 115Ω (typ), 175Ω (max) at ±15V - Ensures minimal insertion loss and voltage drop in precision signal paths. |
| Supply Range | ±4.5V to ±18V - Enables flexible use in legacy ±5V, ±12V, and ±15V industrial and instrumentation systems. |
| Off-Leakage Current | ±0.02nA (max) at ±14V - Preserves high-impedance node integrity in sample/hold and multiplexer applications. |
| Switching Time | tON = 460ns, tOFF = 360ns - Supports medium-speed signal routing up to ~1MHz without significant timing skew. |
| OFF-Isolation | 70dB at 100kHz - Provides strong channel-to-channel signal rejection in multi-channel analog routing. |
| Power Supply Requirement | No VL logic supply needed - Simplifies PCB layout and reduces BOM count versus legacy analog switches requiring three supplies. |
Pinout & Package
Package: 16-pin SOIC (0.150" wide), RoHS-compliant lead finish, -40°C to +85°C operating temperature range.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1, 8, 9, 16 | IN1–IN4 | Inverted logic control inputs; low = switch ON (normally open), compatible with CMOS/TTL voltage thresholds. |
| 2, 7, 10, 15 | D1–D4 | Drain terminals - interchangeable with source; bidirectional current path for analog signals. |
| 3, 6, 11, 14 | S1–S4 | Source terminals - interchangeable with drain; no polarity dependency in analog conduction path. |
| 4 | V− | Negative supply rail connection; must be tied to system −VSS for proper switch biasing. |
| 5 | GND | Digital ground reference; decoupling capacitor required near pin for stable logic interface. |
| 12 | N.C. | No internal connection; must be left unconnected or grounded per layout best practice. |
| 13 | V+ | Positive supply rail connection; also tied to substrate; requires local decoupling to minimize noise coupling. |
Key Features
| Feature | Design Value |
|---|---|
| No VL supply required | Eliminates third power rail, reducing system complexity and enabling direct replacement of older DG211/DG201 designs without board redesign. |
| Guaranteed break-before-make | Prevents momentary short-circuit between analog channels during switching - essential for safe multiplexing of conflicting signal sources. |
| Bidirectional conduction | Enables use as either source-to-drain or drain-to-source switch without performance degradation or polarity constraints. |
| Nonlatching under signal-present power-off | Ensures robustness in hot-swap or brownout conditions where analog inputs remain active while supplies collapse. |
| Constant RDS(ON) vs. signal level | Maintains linear gain and predictable THD in programmable gain amplifiers and precision attenuators across full analog range. |
Applications
| Programmable Gain Amplifier | Analog Multiplexer |
|---|---|
Use Scenario: Selecting feedback resistor networks to set variable gain in op-amp circuits. IC Role / Device Role / Timing Role: Quad SPST switch routing discrete resistors into amplifier feedback loop under digital control. Use Value: Achieves precise, glitch-free gain steps with <115Ω on-resistance contributing <0.1% error in 10kΩ feedback networks. |
Use Scenario: Routing multiple sensor outputs to a shared ADC input in data acquisition systems. IC Role / Device Role / Timing Role: Analog signal selector enabling sequential sampling of up to four channels with guaranteed break-before-make timing. Use Value: Prevents cross-channel coupling during switching; 70dB OFF-isolation ensures <0.03% crosstalk at 100kHz. |
| Automatic Test Equipment | Communications Systems |
Use Scenario: Configuring signal paths for stimulus/response measurement in benchtop ATE platforms. IC Role / Device Role / Timing Role: High-voltage analog switch isolating DUT interfaces from instrument backplanes during reconfiguration. Use Value: ±18V continuous operation supports testing of industrial sensors and actuators without external level-shifting. |
Use Scenario: Signal routing in PBX/PABX line card analog front-ends for voice channel selection. IC Role / Device Role / Timing Role: Low-distortion analog switch managing tip/ring connections and hybrid circuit interfaces. Use Value: Sub-5nA leakage preserves DC bias stability in telephony line drivers; 16pF channel capacitance minimizes HF signal attenuation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad SPST analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4617CSE+ | Single-supply only (up to +36V); no negative rail support; 60Ω RDS(ON); requires VL supply. | Not suitable for bipolar ±15V systems; better for single-rail industrial I/O modules. | Select MAX4617CSE+ only if system uses single positive supply and lower on-resistance is prioritized over dual-rail flexibility. |
| ADG1412BRUZ | ±15V rated; 1.8Ω RDS(ON); requires VL supply; higher supply current (1.2mA vs. 0.4mA). | Superior on-resistance but adds complexity with VL rail; not drop-in compatible due to different pinout and control logic. | Choose ADG1412BRUZ when ultra-low on-resistance is critical and VL supply infrastructure already exists. |
Compared with MAX4617CSE+ and ADG1412BRUZ, DG212CY uniquely combines true bipolar ±4.5V–±18V operation, no-VL simplicity, and guaranteed break-before-make in a standard 16-pin SOIC - making it optimal for retrofitting legacy test and instrumentation designs without layout changes.
Availability
DG212CY is available at Aetrix Electronics and suitable for automatic test equipment, programmable gain amplifiers, communications line cards, and industrial data acquisition systems requiring stable component supply across extended temperature ranges.
Supply support for DG212CY 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 DG212CY belongs to Maxim's legacy analog switch product line, engineered specifically for robust, rail-to-rail signal routing in bipolar-supply test and measurement systems where reliability under fault conditions is mandatory.
FAQ
What is the operating temperature range for DG212CY?
The DG212CY is specified for operation from −40°C to +85°C. This extended industrial temperature range enables reliable deployment in harsh environments such as factory automation controllers, outdoor telecom equipment, and portable test instruments where ambient temperatures fluctuate widely. The device maintains full electrical performance across this range per its datasheet specifications.
Does DG212CY require a VL logic supply voltage?
No, DG212CY does not require a VL logic supply. Unlike earlier analog switches such as the DG211, DG212CY integrates internal level-shifting to accept standard CMOS/TTL logic inputs directly from 0V/5V or 0V/3.3V systems while operating from ±4.5V to ±18V analog supplies - eliminating the need for a third power rail and simplifying system design.
What is the maximum analog signal voltage supported by DG212CY?
DG212CY supports an analog signal range of ±15V, meaning it can pass signals from −15V to +15V without distortion or clipping when operated at ±15V supplies. Absolute maximum ratings allow ±18V continuous operation, but the guaranteed linear signal range remains ±15V per the Electrical Characteristics table in the official datasheet.
How does DG212CY differ from DG202 in control logic?
DG212CY features inverted control inputs compared to DG202: a logic low (≤0.8V) turns the switch ON, whereas DG202 activates with a logic high (≥2.4V). This inversion allows direct functional substitution in systems where control polarity can be adjusted in firmware or logic design, but pin-for-pin replacement requires verification of logic-level compatibility and signal routing.
Is DG212CY pin-compatible with DG212CJ or DG212CSE?
Yes, DG212CY shares identical 16-pin SOIC pinout and electrical specifications with DG212CSE and DG212CJ. All three use the same S16-2 package variant (SOIC, 0.150" width), identical pin functions, and identical thermal and electrical characteristics - differing only in temperature grade (DG212CY = −40°C to +85°C) and RoHS status (DG212CY is leaded, while DG212CSE+ and DG212CJ+ are lead-free).
DG212CY Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Switch Circuit:
- SPST - NO
- Multiplexer/Demultiplexer Circuit:
- 1:1
- Number of Circuits:
- 4
- On-State Resistance (Max):
- 175Ohm
- Channel-to-Channel Matching (ΔRon):
- -
- Voltage - Supply, Single (V+):
- -
- Voltage - Supply, Dual (V±):
- ±4.5V ~ 18V
- Switch Time (Ton, Toff) (Max):
- 1µs, 500ns
- -3db Bandwidth:
- -
- Charge Injection:
- -
- Channel Capacitance (CS(off), CD(off)):
- 5pF, 5pF
- Current - Leakage (IS(off)) (Max):
- 5nA
- Crosstalk:
- -90dB @ 100kHz
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
DG212CY FAQ
1.How can I place an order for DG212CY through Aetrix?
Please submit a Request for Quotation (RFQ) for DG212CY 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 DG212CY reliable?
The price and inventory of DG212CY are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG212CY is usually 5 days.
3.What payment methods are accepted for DG212CY?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG212CY transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG212CY?
DG212CY orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG212CY 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 DG212CY?
For technical support, including DG212CY datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG212CY requirements.
6.How does Aetrix verify that DG212CY is sourced from the original manufacturer or authorized distributors?
All DG212CY 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 DG212CY meets industry standards.
7.What is the process for return or replacement of DG212CY?
All DG212CY units undergo pre-shipment inspection (PSI). If there is an issue with DG212CY, 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 DG212CY part is unused and in its original packaging.
Return procedure for DG212CY:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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