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Analog Devices Inc./Maxim Integrated DG201ADY
- Part No.:
- DG201ADY
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
DG201ADY.pdf
- Description:
- IC SW SPST-NCX4 200OHM 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,124
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Product details
Overview
DG201ADY from Maxim Integrated is a quad SPST normally closed analog switch IC designed for high-voltage signal routing in precision analog systems. It operates over ±4.5V to ±18V dual supplies, delivers 115Ω typical RDS(ON) at ±15V, achieves 450ns max turn-off time, and supports analog signal ranges from –15V to +15V - enabling use in military radios and test equipment requiring robust fault tolerance.
For engineers reviewing the DG201ADY datasheet, DG201ADY pinout, DG201ADY application, or DG201ADY equivalent, this page provides verified switching timing, leakage current specs, SO package dimensions, logic-compatible control interface, and validated alternatives for ±15V analog multiplexing designs.
Technical Context
The DG201ADY implements four independent CMOS SPST switches with guaranteed break-before-make operation and nonlatching behavior when power supplies are disconnected while analog signals remain present. Its monolithic design eliminates the VL supply required by legacy equivalents, simplifying system power architecture.
Switching is controlled by TTL/CMOS-compatible digital inputs (IN1–IN4), each driving one channel's gate directly. The device maintains low charge injection (20pC) and high OFF-isolation (70dB), critical for minimizing crosstalk and signal corruption in multi-channel instrumentation front-ends.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Analog Signal Range | –15V to +15V - supports full-rail bipolar signal switching without clipping in ±15V systems. |
| RDS(ON) (max) | 175Ω at VD = ±10V, IS = 1mA - ensures minimal insertion loss and gain error in precision signal paths. |
| Turn-Off Time (tOFF) | 450ns max - enables fast channel switching in automated test equipment scan cycles. |
| OFF-Leakage Current | ±5.0nA max (S/D terminals) - preserves accuracy in high-impedance sensor interfaces and sample-hold circuits. |
| Supply Range | ±4.5V to ±18V continuous - accommodates industrial, military, and telecom power rails without external regulation. |
| OFF-Isolation | 70dB at 100kHz - suppresses inter-channel interference in multi-signal acquisition systems. |
| Charge Injection | 20pC - limits voltage glitch on sampled nodes, critical for low-error ADC driver stages. |
Pinout & Package
Package: 16-pin SO (Small Outline Integrated Circuit), JEDEC MS-012, body width 3.9mm, lead pitch 1.27mm, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 8, 9, 16 | IN1–IN4 | Digital control inputs; active-high logic turns respective switch ON (closed). |
| 2, 7, 10, 15 | D1–D4 | Drain terminals - analog output side of each SPST switch, connected to load or downstream circuitry. |
| 3, 6, 11, 14 | S1–S4 | Source terminals - analog input side of each SPST switch, connected to signal sources or sensors. |
| 4 | V− | Negative supply rail - must be connected to system −VEE; substrate reference for NMOS portion. |
| 5 | GND | Digital ground reference - ties logic threshold and internal bias networks. |
| 12 | N.C. | No internal connection - left unconnected; no routing or thermal tie required. |
| 13 | V+ | Positive supply rail - connects to system +VCC; also tied to substrate for PMOS portion. |
Key Features
| Feature | Design Value |
|---|---|
| No VL supply required | Eliminates third power rail, reducing BOM count and PCB layout complexity versus legacy DG211. |
| Guaranteed break-before-make | Prevents momentary short-circuit between channels during switching - essential for safe multiplexer sequencing. |
| Nonlatching under signal-present power-off | Withstands input signals up to ±15V even when V+ and V− are disconnected - protects against system-level fault conditions. |
| CMOS/TTL logic compatibility | Accepts 0.8V/2.4V logic thresholds across full temperature range - interoperable with microcontrollers and FPGAs without level shifters. |
| Low power consumption | I+ ≤ 0.1mA and I− ≤ 0.1mA (all channels ON/OFF) - extends battery life in portable test instruments. |
Applications
| Winchester Disk Drives | Test Equipment |
|---|---|
Use Scenario: Routing head-positioning servo signals and read/write channel selection in HDD actuator control boards. IC Role / Device Role / Timing Role: Quad SPST analog switch providing isolated, low-distortion signal path selection under ±12V supply. Use Value: 175Ω RDS(ON) and 70dB OFF-isolation prevent cross-talk between servo and data channels during head seek operations. |
Use Scenario: Automated signal path configuration in benchtop multimeters and parametric analyzers. IC Role / Device Role / Timing Role: High-voltage analog multiplexer enabling sequential measurement of multiple DUTs with shared ADC front-end. Use Value: 450ns tOFF and 20pC charge injection ensure rapid, low-glitch channel switching for sub-millisecond sampling cycles. |
| Military Radios | Guidance and Control Systems |
Use Scenario: Antenna diversity switching and IF signal routing in ruggedized HF/VHF transceivers operating across –40°C to +85°C. IC Role / Device Role / Timing Role: Fault-tolerant analog switch handling RF front-end signal conditioning under wide temperature and supply variation. Use Value: Nonlatching behavior with signals present during power interruption prevents latch-up-induced radio failure in field-deployed units. |
Use Scenario: Sensor signal conditioning and redundancy switching in inertial measurement units (IMUs) and flight control computers. IC Role / Device Role / Timing Role: Precision analog gate managing accelerometer, gyroscope, and GPS baseband signal paths. Use Value: ±15V analog range and <5nA OFF-leakage preserve DC accuracy and long-term calibration stability in safety-critical avionics. |
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+ | Single-supply only (up to +36V), no negative rail support; 400Ω RDS(ON) min; no guaranteed break-before-make. | Limited to unipolar signal routing; unsuitable for ±15V systems or bipolar sensor interfaces. | Select only if design uses single +12V/+24V supply and does not require bipolar analog range or fault-safe power-down behavior. |
| ADG1414BRUZ | ±15V rated, 1.8Ω RDS(ON), but requires VL bias (2.7V–5.5V); 16-pin TSSOP only; no SO option. | Superior ON-resistance but adds power domain complexity; incompatible pinout and package footprint vs. DG201ADY. | Choose when ultra-low RDS(ON) is critical and VL supply is available; not drop-in replaceable due to pinout and bias requirements. |
Compared with MAX4617ESE+ and ADG1414BRUZ, the DG201ADY uniquely combines true dual-supply ±18V operation, guaranteed break-before-make, no VL supply, and SO package availability - making it the only validated choice for legacy-compatible, fault-resilient ±15V analog multiplexing where layout reuse and supply simplicity are mandatory.
Availability
DG201ADY is available at Aetrix Electronics and suitable for military radios, guidance and control systems, and test equipment requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for DG201ADY 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 U.S.-based semiconductor company specializing in high-performance analog, mixed-signal, and power management ICs for industrial, communications, and defense applications.
The DG201A family was developed to replace legacy analog switches with improved fault tolerance, lower power, and simplified power architecture - specifically targeting high-reliability systems where supply sequencing and signal integrity under abnormal conditions are critical.
FAQ
What is the operating temperature range for DG201ADY?
The DG201ADY is specified for operation from –40°C to +85°C, matching its "E" grade designation in Maxim's ordering table. This extended industrial temperature range ensures reliable performance in harsh environments such as vehicle-mounted test gear, airborne radios, and outdoor instrumentation - unlike the commercial-grade DG201AC which only supports 0°C to +70°C.
Does DG201ADY require a VL supply voltage?
No, the DG201ADY does not require a VL supply. Unlike earlier analog switches such as the DG211, Maxim eliminated the VL pin in the DG201A family. All logic and analog functions operate using only V+, V−, and GND - simplifying power design and reducing component count in systems where space and supply rails are constrained.
What is the maximum analog signal voltage supported by DG201ADY?
The DG201ADY supports analog signals from –15V to +15V when operated with ±15V supplies, as confirmed in its Electrical Characteristics table. This full-rail capability allows direct interfacing with op-amps, DACs, and sensors operating at standard industrial bipolar levels without attenuation or level-shifting circuitry.
Is DG201ADY pin-compatible with DG211 variants in SO package?
No, DG201ADY is not pin-compatible with DG211 variants. Although both use 16-pin SO packages, the DG211 includes a VL pin (pin 12), whereas DG201ADY uses pin 12 as N.C. Additionally, DG211 assigns IN1–IN4 to pins 1, 2, 3, 4, while DG201ADY places them on pins 1, 8, 9, 16 - requiring PCB layout changes for replacement.
What is the typical RDS(ON) of DG201ADY at ±12V supplies?
While the datasheet specifies RDS(ON) at ±15V (115Ω typ), the Typical RDS(ON) vs. Power Supplies chart shows ~160Ω at ±12V. This increase reflects MOSFET channel resistance dependence on VGS; designers should verify voltage drop and power dissipation in their specific ±12V application using this interpolated value.
DG201ADY Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Obsolete
- Switch Circuit:
- SPST - NC
- Multiplexer/Demultiplexer Circuit:
- 1:1
- Number of Circuits:
- 4
- On-State Resistance (Max):
- 200Ohm
- Channel-to-Channel Matching (ΔRon):
- -
- Voltage - Supply, Single (V+):
- -
- Voltage - Supply, Dual (V±):
- ±4.5V ~ 18V
- Switch Time (Ton, Toff) (Max):
- 600ns, 450ns
- -3db Bandwidth:
- -
- Charge Injection:
- 20pC
- 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
DG201ADY FAQ
1.How can I place an order for DG201ADY through Aetrix?
Please submit a Request for Quotation (RFQ) for DG201ADY 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 DG201ADY reliable?
The price and inventory of DG201ADY are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG201ADY is usually 5 days.
3.What payment methods are accepted for DG201ADY?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG201ADY transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG201ADY?
DG201ADY orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG201ADY 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 DG201ADY?
For technical support, including DG201ADY datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG201ADY requirements.
6.How does Aetrix verify that DG201ADY is sourced from the original manufacturer or authorized distributors?
All DG201ADY 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 DG201ADY meets industry standards.
7.What is the process for return or replacement of DG201ADY?
All DG201ADY units undergo pre-shipment inspection (PSI). If there is an issue with DG201ADY, 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 DG201ADY part is unused and in its original packaging.
Return procedure for DG201ADY:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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