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Analog Devices Inc./Maxim Integrated DG308ACY+
- Part No.:
- DG308ACY+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
DG308ACY+.pdf
- Description:
- IC SW SPST-NOX4 100OHM 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,123
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Product details
Overview
DG308ACY+ from Maxim Integrated is a quad SPST analog switch with normally-open (NO) configuration, designed for precision signal routing in mixed-signal systems. It delivers 60Ω typical on-resistance, <130ns turn-on time, and supports ±5V to ±20V dual supplies or +5V to +30V single supply - enabling use in sample-and-hold circuits and military radio front-ends.
For engineers reviewing the DG308ACY+ datasheet, DG308ACY+ pinout, DG308ACY+ application, or DG308ACY+ equivalent, key selection criteria include analog voltage range (±15V), off-isolation (78dB), channel leakage (<100pA at +25°C), and CMOS-compatible logic inputs - all critical for low-distortion, high-reliability switching in test equipment and guidance systems.
Technical Context
The DG308ACY+ implements monolithic CMOS switch architecture with substrate-connected V+ pin, enabling robust 44V breakdown voltage and 30V peak-to-peak blocking capability. Its four independent channels operate with matched timing (tON ≤ 200ns, tOFF ≤ 150ns) and low charge injection (≤10pC), preserving signal integrity in sampling paths.
Logic inputs accept standard CMOS voltage levels across full temperature range (0°C to +70°C), while analog terminals (S/D) tolerate rail-to-rail signals within supply limits. The device maintains low rDS(ON) variation over temperature and supply voltage - confirmed by typical curves for ±5V to ±15V operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-resistance (rDS(ON)) | 60Ω typical - ensures minimal signal attenuation and gain error in precision amplifier/PGA signal paths |
| Turn-on time (tON) | 130ns typical - enables sub-microsecond channel selection for high-speed data acquisition |
| Off-isolation (OIRR) | 78dB at 500kHz - suppresses crosstalk between active and inactive channels in multiplexed systems |
| Analog signal range | ±15V - supports full-range bipolar signal switching without clipping when powered at ±15V |
| Supply voltage range | ±5V to ±20V dual or +5V to +30V single - allows flexible integration into legacy and modern power architectures |
| Channel leakage (ID(OFF)/IS(OFF)) | ±100pA max at +25°C - preserves accuracy in high-impedance sample-and-hold and sensor interface nodes |
| Charge injection | ≤10pC - minimizes voltage glitch on hold capacitors, reducing settling time and droop error |
Pinout & Package
Package: 16-pin narrow SOIC (Small Outline Integrated Circuit), surface-mount, JEDEC MS-012AC compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN1–IN4 (Pins 1, 8, 9, 16) | CMOS logic control inputs | Enable/disable individual switches; compatible with 3.3V/5V logic; low input current (<1µA) |
| S1–S4 (Pins 3, 6, 11, 14) | Source terminals (analog inputs) | Accept bidirectional analog signals up to ±15V; tied internally to substrate via V+ |
| D1–D4 (Pins 2, 7, 10, 15) | Drain terminals (analog outputs) | Deliver switched analog signals; symmetric conduction path with S pins |
| V+ (Pin 13) | Positive supply / substrate connection | Bias for P-well; must be ≥ V- and ≤ +44V; defines upper analog rail in single-supply mode |
| V- (Pin 4) | Negative supply | Defines lower analog rail; required for dual-supply operation; can be GND in single-supply config |
| GND (Pin 5) | Ground reference | Logic ground and return path for supply currents; separate from analog signal reference |
| N.C. (Pin 12) | No-connect terminal | Not bonded or connected internally; must remain unconnected on PCB |
Key Features
| Feature | Design Value |
|---|---|
| Monolithic CMOS construction | Eliminates discrete transistor matching issues; ensures consistent channel-to-channel timing and resistance |
| 44V breakdown rating | Enables 30Vpp analog blocking without external clamping - critical for ruggedized test and military radios |
| Low 10pC charge injection | Reduces hold capacitor voltage step error to <1mV (with 10nF cap), easing anti-aliasing filter design |
| CMOS-input compatibility | Draws <1µA input current - avoids loading of preceding logic drivers or microcontroller GPIOs |
| Wide temperature range (0°C to +70°C) | Validated performance across commercial ambient conditions - suitable for PBX, instrumentation, and avionics |
Applications
| Sample-and-Hold Circuits | Test Equipment |
|---|---|
Use Scenario: Multiplexing multiple sensor inputs into a single ADC channel with precise hold timing. IC Role / Device Role / Timing Role: DG308ACY+ acts as the analog sample gate, opening only during acquisition phase to charge hold capacitor. Use Value: 60Ω rDS(ON) and ≤10pC charge injection minimize gain error and pedestal shift, ensuring <12-bit linearity. |
Use Scenario: Signal routing in automated test equipment (ATE) for stimulus/response path selection. IC Role / Device Role / Timing Role: DG308ACY+ provides fast, low-crosstalk switching between DUT interfaces and measurement instruments. Use Value: 78dB off-isolation at 500kHz prevents signal bleed between channels during parallel testing. |
| Communications Systems | Military Radios |
Use Scenario: Band-select switching in HF/VHF transceiver front-ends with shared antenna paths. IC Role / Device Role / Timing Role: DG308ACY+ routes receive/transmit signals while maintaining isolation between RF stages. Use Value: ±20V dual-supply support enables direct interfacing with high-dynamic-range IF amplifiers. |
Use Scenario: Antenna diversity switching and audio path management in manpack and vehicular radios. IC Role / Device Role / Timing Role: DG308ACY+ serves as a hardened analog switch for mission-critical signal routing under EMI stress. Use Value: 44V breakdown and -40°C to +85°C qualified variants (DG308ADY+) ensure reliability in field-deployed units. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4618ESE+ | Single SPST, 35Ω rDS(ON), 10ns tON - faster but single-channel; requires external logic for quad function | Best for space-constrained, ultra-fast single-path switching; not drop-in for quad routing | Select when speed > channel count; redesign needed for 4-channel replacement |
| ADG1404BRUZ | Quad SPST, 4.7Ω rDS(ON), ±15V supply, but higher 15pC charge injection and 2.5V logic threshold | Superior on-resistance for low-voltage precision systems; less suitable for legacy 5V CMOS control | Choose for <1Ω error budgets where logic interface allows level-shifting |
Compared with DG308ACY+, MAX4618ESE+ trades channel density for speed and lower on-resistance, while ADG1404BRUZ offers dramatically lower rDS(ON) at the cost of higher charge injection and stricter logic voltage requirements - making DG308ACY+ optimal for balanced performance in industrial and defense analog routing.
Availability
DG308ACY+ is available at Aetrix Electronics and suitable for sample-and-hold circuits, test equipment, and communications systems requiring stable component supply, long-term lifecycle support, and traceable sourcing from authorized channels.
Supply support for DG308ACY+ 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, automotive, and communications markets - emphasizing reliability, integration, and performance under harsh conditions.
The DG308A family was engineered for high-fidelity analog signal switching in military, telecom, and instrumentation applications - prioritizing low distortion, high isolation, and wide supply flexibility over raw speed or ultra-low resistance.
FAQ
What is the maximum analog signal voltage the DG308ACY+ can switch?
The DG308ACY+ supports analog signals from V− to V+, with absolute maximum ratings of −15V to +15V when operated at ±15V supplies. Its 44V breakdown voltage allows safe blocking of up to 30V peak-to-peak signals even when off - verified per Absolute Maximum Ratings table. Always ensure analog inputs stay within supply rails to prevent latch-up or damage.
Can DG308ACY+ operate from a single +12V supply?
Yes, DG308ACY+ supports single-supply operation from +5V to +30V. When using +12V, connect V− to GND and route analog signals between 0V and +12V. Note that rDS(ON) increases slightly versus dual-supply mode, and switching speed degrades modestly - both confirmed in Typical Operating Characteristics graphs on page 4 of the datasheet.
Is DG308ACY+ pin-compatible with DG308ACJ or DG308ACK?
Yes, DG308ACY+ shares identical pinout and electrical specifications with DG308ACJ (16-pin DIP) and DG308ACK (16-pin CERDIP). All three are functionally identical - differing only in package type (narrow SOIC vs. plastic DIP vs. ceramic DIP) and thermal characteristics. No PCB layout changes are required when substituting among these variants.
What is the typical leakage current of DG308ACY+ at +85°C?
At TA = +85°C, DG308ACY+ exhibits ≤100nA drain-off (ID(OFF)) and source-off (IS(OFF)) leakage - per Electrical Characteristics table, Column DG30_C/D, MAX row. This is 100× higher than the ±100pA typical at +25°C, but remains well below 1µA, preserving accuracy in high-Z sample-and-hold nodes even at elevated temperatures.
Does DG308ACY+ require external pull-up or pull-down resistors on its logic inputs?
No, DG308ACY+ does not require external biasing on IN1–IN4. Its CMOS inputs draw <1µA leakage current and recognize logic-high above 3.5V (for DG308A) with rail-to-rail compatibility - allowing direct connection to microcontroller GPIOs or FPGA outputs without pull resistors. Input thresholds are specified in the Truth Table section of the datasheet.
DG308ACY+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Obsolete
- Switch Circuit:
- SPST - NO
- Multiplexer/Demultiplexer Circuit:
- 1:1
- Number of Circuits:
- 4
- On-State Resistance (Max):
- 100Ohm
- Channel-to-Channel Matching (ΔRon):
- -
- Voltage - Supply, Single (V+):
- 5V ~ 30V
- Voltage - Supply, Dual (V±):
- ±5V ~ 20V
- Switch Time (Ton, Toff) (Max):
- 250ns, 150ns
- -3db Bandwidth:
- -
- Charge Injection:
- -10pC
- Channel Capacitance (CS(off), CD(off)):
- 11pF, 8pF
- Current - Leakage (IS(off)) (Max):
- 5nA
- Crosstalk:
- -
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
DG308ACY+ FAQ
1.How can I place an order for DG308ACY+ through Aetrix?
Please submit a Request for Quotation (RFQ) for DG308ACY+ 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 DG308ACY+ reliable?
The price and inventory of DG308ACY+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG308ACY+ is usually 5 days.
3.What payment methods are accepted for DG308ACY+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG308ACY+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG308ACY+?
DG308ACY+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG308ACY+ 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 DG308ACY+?
For technical support, including DG308ACY+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG308ACY+ requirements.
6.How does Aetrix verify that DG308ACY+ is sourced from the original manufacturer or authorized distributors?
All DG308ACY+ 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 DG308ACY+ meets industry standards.
7.What is the process for return or replacement of DG308ACY+?
All DG308ACY+ units undergo pre-shipment inspection (PSI). If there is an issue with DG308ACY+, 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 DG308ACY+ part is unused and in its original packaging.
Return procedure for DG308ACY+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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