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Analog Devices Inc./Maxim Integrated DG212DY+T
- Part No.:
- DG212DY+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
DG212DY+T.pdf
- Description:
- IC SW SPST-NOX4 175OHM 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,779
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Product details
Overview
DG212DY+T from Maxim Integrated is a quad SPST normally open analog switch IC designed for bidirectional signal routing in ±4.5V to ±18V dual-supply systems. It features guaranteed break-before-make switching, 175Ω typical RDS(ON) at ±15V, <5pF OFF-capacitance per channel, and operates across –40°C to +85°C. It enables precision analog multiplexing in programmable gain amplifiers and automatic test equipment.
For engineers reviewing the DG212DY+T datasheet, DG212DY+T pinout, DG212DY+T application, or DG212DY+T equivalent, key selection criteria include its VL-free CMOS logic interface, latch-up immunity with powered-off supplies, low charge injection (20pC), and SO-16 package compatibility with legacy DG212 designs.
Technical Context
The DG212DY+T implements four independent CMOS transmission gates with inverted control logic relative to DG211/DG201. Each switch guarantees break-before-make timing and maintains near-constant on-resistance over its full ±15V analog signal range.
It eliminates the need for a separate VL logic supply while maintaining TTL/CMOS input compatibility, and supports fault-tolerant operation-no latch-up occurs when input signals remain present during power-supply disconnection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Analog Signal Range | ±15V - Supports rail-to-rail analog signal switching without clipping in ±15V systems. |
| RDS(ON) | 115–175Ω - Low, predictable on-resistance ensures minimal signal attenuation and gain error in precision paths. |
| OFF-Leakage Current | ±0.02nA max - Enables high-impedance sample/hold and low-drift sensor front-ends. |
| Switching Time (tON/tOFF) | 460–1000ns - Suitable for medium-speed data acquisition and multiplexed ADC/DAC interfaces. |
| OFF-Isolation | 70dB - Suppresses crosstalk between channels in multi-channel analog routing applications. |
| Charge Injection | 20pC - Limits voltage step errors in sample-and-hold circuits and integrators. |
| Supply Range | ±4.5V to ±18V - Enables flexible system-level power architecture without level-shifting. |
Pinout & Package
Package: 16-pin SOIC (Small Outline Integrated Circuit), JEDEC MS-012, body width 3.9mm, lead pitch 1.27mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 8, 9, 16 | IN1–IN4 | Inverted logic inputs controlling S1–S4 switches; active-low enable (logic 0 = ON). |
| 2, 15, 10, 7 | D1–D4 | Drain terminals - bidirectional analog I/O nodes connected to load or downstream circuitry. |
| 3, 14, 11, 6 | S1–S4 | Source terminals - bidirectional analog I/O nodes connected to source or upstream signal path. |
| 4 | V− | Negative supply rail - must be connected to system V−; substrate reference for NMOS devices. |
| 5 | GND | Digital ground reference - ties logic threshold and internal bias networks. |
| 12 | N.C. | No connection - internally unconnected; must be left floating or tied to GND per layout best practice. |
| 13 | V+ | Positive supply rail - connects to system V+ and substrate; powers PMOS devices and internal logic. |
Key Features
| Feature | Design Value |
|---|---|
| No VL supply required | Eliminates external logic-level translation; simplifies BOM and PCB layout versus legacy DG212 variants. |
| Guaranteed break-before-make | Prevents momentary short-circuit between channels during switching-critical in multiplexer-based PGA topologies. |
| Nonlatching under signal-present power-off | Enables hot-swap-safe analog signal paths where control power may cycle independently of analog rails. |
| Constant RDS(ON) vs. signal voltage | Minimizes THD and gain nonlinearity in audio, instrumentation, and precision measurement signal chains. |
| CMOS/TTL logic compatible | Accepts standard 0V/3.3V/5V logic levels directly-no external level shifters needed for microcontroller or FPGA control. |
Applications
| Programmable Gain Amplifier | Analog Multiplexer |
|---|---|
|
Use Scenario: Selecting resistor feedback networks to set gain in op-amp circuits using discrete precision resistors. IC Role / Device Role / Timing Role: Quad SPST switch routing analog feedback paths; break-before-make prevents transient gain spikes. Use Value: Enables software-configurable gain steps without mechanical relays or trimming-supports 16-gain configurations with two DG212DY+T devices. |
Use Scenario: Routing multiple sensor outputs (e.g., thermocouples, RTDs) to a single ADC input in industrial data loggers. IC Role / Device Role / Timing Role: Analog signal selector with low leakage and matched RDS(ON) ensuring channel-to-channel gain consistency. Use Value: Maintains <0.01% gain error across channels due to <175Ω RDS(ON) matching and <5pF OFF-capacitance. |
| Automatic Test Equipment | Communications Systems |
|
Use Scenario: Signal path configuration in modular ATE racks for DUT stimulus/response routing and calibration loopback. IC Role / Device Role / Timing Role: Fault-tolerant analog switch enabling safe reconfiguration while DUT signals remain live. Use Value: Latch-up immunity allows uninterrupted operation during power sequencing mismatches-reduces test downtime. |
Use Scenario: Audio line switching in PBX/PABX systems and VoIP gateways requiring silent, glitch-free channel selection. IC Role / Device Role / Timing Role: Bidirectional analog switch handling AC-coupled voice-band signals (300Hz–3.4kHz) with low distortion. Use Value: 20pC charge injection and <0.02nA leakage prevent audible clicks and DC offset drift in telephony interfaces. |
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 |
|---|---|---|---|
| MAX4617ESE+ | Lower RDS(ON) (60Ω typ), but requires VL supply and only rated to ±15V. | Higher bandwidth (100MHz off-isolation), less suitable for ±18V industrial systems. | Choose MAX4617ESE+ only if VL supply is available and ±18V operation is unnecessary. |
| ADG1412BRUZ | Higher supply rating (±20V), but higher RDS(ON) (120Ω min), no guaranteed break-before-make. | Includes fault protection (overvoltage tolerant), but lacks latch-up immunity during power-off signal presence. | Choose ADG1412BRUZ for overvoltage-hardened designs where break-before-make is not critical. |
Compared with MAX4617ESE+ and ADG1412BRUZ, the DG212DY+T uniquely combines VL-free operation, ±18V capability, guaranteed break-before-make, and latch-up immunity-making it optimal for robust, supply-flexible analog routing in industrial and test equipment.
Availability
DG212DY+T is available at Aetrix Electronics and suitable for programmable gain amplifiers, analog multiplexers, automatic test equipment, communications systems, and sample-and-hold circuits requiring stable component supply across extended temperature ranges.
Supply support for DG212DY+T 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 and mixed-signal ICs for industrial, communications, and computing applications.
The DG212DY+T belongs to Maxim's precision analog switch family, engineered for reliable, low-distortion signal routing in systems demanding wide supply range, latch-up immunity, and simplified logic interfacing.
FAQ
What is the operating temperature range for the DG212DY+T?
The DG212DY+T is specified for operation from –40°C to +85°C. This extended industrial temperature range ensures reliable performance in harsh environments such as factory automation controllers, outdoor communications gear, and test instrumentation. The "DY" suffix explicitly denotes this –40°C to +85°C grade, distinguishing it from commercial-grade "C" versions.
Does the DG212DY+T require a VL logic supply voltage?
No, the DG212DY+T does not require a VL supply. Unlike earlier DG212 variants, Maxim eliminated the VL pin while preserving TTL/CMOS logic compatibility-inputs accept 0V/5V directly. This simplifies power design and reduces component count. The DG212DY+T achieves this through integrated level-shifting circuitry, confirmed in the device's Electrical Characteristics table under "Input Current with Input Voltage High/Low".
How does the DG212DY+T handle power-supply disconnection while analog signals remain present?
The DG212DY+T is guaranteed nonlatching under those conditions: if V+ and V− are removed while analog signals persist on S or D pins, the device will not enter a destructive latch-up state. This behavior is explicitly tested and warranted per Maxim's Absolute Maximum Ratings and General Description-enabling safe use in hot-pluggable modules and systems with asynchronous power domains.
What is the maximum analog signal voltage the DG212DY+T can switch?
The DG212DY+T supports an analog signal range of ±15V when operated with ±15V supplies, and scales linearly with supply voltage-up to ±18V maximum continuous operation. Its Absolute Maximum Ratings confirm VS/VD may swing from V− to V+, meaning full rail-to-rail analog switching is supported within the applied supply rails, with no clamping diodes conducting under normal operation.
Is the DG212DY+T pin-compatible with other DG212 package variants?
Yes-the DG212DY+T uses the standard 16-pin SOIC (SO) footprint defined in JEDEC MS-012, matching DG212CSE, DG212ADY, and all other SO-packaged DG212 variants. Pin functions, spacing (1.27mm pitch), and thermal pad configuration (none-unlike QFN variants) are identical, enabling direct replacement in existing SO-16 layouts without PCB revision.
DG212DY+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- 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:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
DG212DY+T FAQ
1.How can I place an order for DG212DY+T through Aetrix?
Please submit a Request for Quotation (RFQ) for DG212DY+T 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 DG212DY+T reliable?
The price and inventory of DG212DY+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG212DY+T is usually 5 days.
3.What payment methods are accepted for DG212DY+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG212DY+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG212DY+T?
DG212DY+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG212DY+T 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 DG212DY+T?
For technical support, including DG212DY+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG212DY+T requirements.
6.How does Aetrix verify that DG212DY+T is sourced from the original manufacturer or authorized distributors?
All DG212DY+T 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 DG212DY+T meets industry standards.
7.What is the process for return or replacement of DG212DY+T?
All DG212DY+T units undergo pre-shipment inspection (PSI). If there is an issue with DG212DY+T, 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 DG212DY+T part is unused and in its original packaging.
Return procedure for DG212DY+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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