My Inquiry
My Account
Analog Devices Inc./Maxim Integrated DG442CY+
- Part No.:
- DG442CY+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
DG442CY+.pdf
- Description:
- IC SWITCH SPST-NOX4 85OHM 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:123
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
DG442CY+ from Maxim Integrated is a quad, normally open (NO), single-pole/single-throw (SPST) analog switch IC designed for precision signal routing in mixed-signal systems. It features 85Ω max on-resistance, 4Ω max on-resistance matching between channels, 9Ω max on-resistance flatness, 10pC max charge injection, and operates from +10V to +30V single supply or ±4.5V to ±20V dual supplies - used in audio-signal routing and test equipment.
For engineers reviewing the DG442CY+ datasheet, DG442CY+ pinout, DG442CY+ application, or DG442CY+ equivalent, key selection criteria include rail-to-rail analog signal handling (±15.5V), low off-leakage (<5nA at +85°C), TTL/CMOS logic compatibility, and exposed-pad Thin QFN-EP package thermal performance.
Technical Context
The DG442CY+ implements four independent SPST switches with complementary logic control: logic high enables conduction (NO configuration). Its silicon-gate 44V process ensures robust operation across wide supply ranges and temperature extremes (0°C to +70°C).
Switching is bidirectional with matched rDS(ON) and guaranteed flatness over the full analog range, enabling accurate signal gain/attenuation paths. Charge injection is tightly controlled (10pC max) to minimize sampling error in sample-and-hold circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| rDS(ON) | 85Ω max - ensures minimal insertion loss and voltage drop in signal paths up to ±15.5V analog range. |
| rDS(ON) Match | 4Ω max - enables precise channel-to-channel gain tracking in multi-path instrumentation. |
| rFLAT(ON) | 9Ω max - maintains consistent signal attenuation across full input voltage swing, critical for linear signal routing. |
| Charge Injection | 10pC max - reduces settling error and droop in sample-and-hold and ADC front-end applications. |
| tON/tOFF | <250ns / <170ns - supports fast multiplexing in automated test equipment and real-time signal switching. |
| Off-Leakage (IOFF) | <5nA at +85°C - preserves signal integrity in high-impedance sensor interfaces and battery-operated systems. |
| Supply Range | +10V to +30V (single) or ±4.5V to ±20V (dual) - accommodates industrial, telecom, and military power architectures. |
Pinout & Package
Package: 16-pin Narrow SO (Small Outline), lead(Pb)-free, exposed pad connected to V+ per datasheet requirement.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN1–IN4 | Digital Control Input | TTL/CMOS-compatible logic inputs; high = switch ON (NO configuration) for corresponding channel. |
| D1–D4 | Analog Drain Terminal | One side of each SPST switch; bidirectional signal path, rated for ±15.5V relative to V−. |
| S1–S4 | Analog Source Terminal | Other side of each SPST switch; connects to load or downstream circuitry; rail-to-rail capable. |
| V+ | Positive Supply | Primary positive rail (up to +30V); substrate connection point; exposed pad must be tied to V+. |
| V− | Negative Supply | Negative rail for dual supply (down to −20V); required for bipolar operation and full analog range. |
| GND | Ground Reference | Logic ground reference; separate from analog signal return; not internally connected to substrate. |
| N.C. | No Internal Connection | Pin 12 (SO package) is unconnected - must be left floating or grounded per layout best practice. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail signal handling | Supports analog signals from V− to V+ (±15.5V typical), enabling full dynamic range utilization in ±15V systems. |
| Low charge injection (10pC) | Minimizes voltage step errors during switching in precision sampling circuits and DAC output buffering. |
| Guaranteed rDS(ON) match (4Ω) | Ensures uniform gain/loss across all four channels - essential for multi-channel calibration and beamforming. |
| ESD tolerance (2000V min) | Meets Method 3015.7 - improves robustness during board handling and system integration without external protection. |
| Bidirectional conduction | Enables flexible signal routing regardless of source/sink orientation - simplifies PCB layout in analog backplanes. |
Applications
| Audio-Signal Routing | Test Equipment Multiplexing |
|---|---|
|
Use Scenario: Switching line-level or headphone audio signals between multiple sources and outputs in professional audio mixers. IC Role / Device Role / Timing Role: Quad SPST analog switch providing isolated, low-distortion signal paths with minimal crosstalk (−100dB). Use Value: 85Ω rDS(ON) and 9Ω flatness preserve frequency response flatness; 10pC charge injection prevents audible pop/click artifacts. |
Use Scenario: Channel selection in automated test equipment (ATE) for routing sensor signals to shared measurement circuitry. IC Role / Device Role / Timing Role: Precision analog switch enabling fast, repeatable signal path configuration with sub-250ns switching. Use Value: <5nA off-leakage at +85°C ensures measurement accuracy in high-impedance thermocouple or pH probe interfaces. |
| Sample-and-Hold Circuits | Battery-Operated Instrumentation |
|
Use Scenario: Sampling analog sensor outputs into successive-approximation ADCs in data acquisition systems. IC Role / Device Role / Timing Role: Low-charge-injection switch isolating hold capacitor from input during acquisition phase. Use Value: 10pC max charge injection directly limits voltage error on 1nF hold capacitors to ≤10mV - meeting 12-bit accuracy requirements. |
Use Scenario: Power-gating analog front-ends and sensor interfaces in portable medical or environmental monitors. IC Role / Device Role / Timing Role: Low-power SPST switch enabling selective activation of signal chains to extend battery life. Use Value: 1.65mW max power consumption and <5nA off-leakage at +85°C minimize quiescent drain in always-on monitoring modes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADG442BRZ | 80Ω rDS(ON), 250ns tON, no exposed pad; operates up to +36V but lacks guaranteed rFLAT(ON). | Higher leakage (>20nA at +85°C); less suitable for precision sample-and-hold or high-temp industrial use. | Prefer DG442CY+ where on-resistance flatness and low high-temp leakage are critical. |
| TS5A3157DCKR | Single-channel, 0.9Ω rDS(ON), 3.3V logic only, ±5.5V analog range - incompatible supply architecture. | Not pin-compatible; requires redesign for quad-channel, high-voltage, bipolar operation. | Select DG442CY+ when quad SPST, ±20V dual-supply capability, and 4Ω match are mandatory. |
Compared with ADG442BRZ and TS5A3157DCKR, the DG442CY+ uniquely delivers guaranteed 9Ω rFLAT(ON) and <5nA off-leakage at +85°C in a quad NO configuration - making it the only option for high-accuracy, temperature-stable analog multiplexing in ±15V systems.
Availability
DG442CY+ is available at Aetrix Electronics and suitable for audio-signal routing, test equipment multiplexing, and battery-operated instrumentation requiring stable component supply, long-term lifecycle support, and lead(Pb)-free compliance.
Supply support for DG442CY+ 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, mixed-signal, and power management ICs for industrial, communications, and computing applications.
The DG442CY+ belongs to Maxim's precision analog switch product line, engineered for low distortion, high channel matching, and robust operation in demanding signal-routing applications across extended temperature ranges.
FAQ
What is the maximum analog signal voltage range supported by the DG442CY+?
The DG442CY+ supports rail-to-rail analog signals from V− to V+, with a typical range of ±15.5V under ±15V dual-supply conditions. When operated from a +12V single supply (V− = 0V), the analog range extends from 0V to +12V. Absolute maximum analog voltage is limited to (V− − 2V) to (V+ + 2V) per pin ratings, and the difference between V+ and V− must not exceed +44V.
Is the DG442CY+ pin-compatible with legacy DG442 variants?
Yes - the DG442CY+ uses the same 16-pin Narrow SO footprint and pinout as the standard DG442CY. The "+" suffix denotes lead(Pb)-free packaging per Maxim's ordering convention; electrical, thermal, and functional behavior is identical to non-"+" versions.
Does the DG442CY+ require external protection diodes for overvoltage conditions?
No - the DG442CY+ includes internal ESD protection rated to 2000V per Method 3015.7. However, external series diodes are recommended if supply sequencing cannot be guaranteed (V+ first, then V−), as they prevent latch-up during power-up transients while preserving low rDS(ON) and leakage performance.
What is the significance of the exposed pad (EP) on the DG442CY+ package?
The exposed pad on the DG442CY+ Thin QFN-EP package must be soldered and electrically connected to V+ to ensure proper substrate biasing and thermal dissipation. It is not a standalone V+ connection - the main V+ pin (Pin 13) must still be bonded. Failure to connect EP to V+ may cause increased on-resistance or thermal instability.
How does the DG442CY+ perform in high-temperature environments?
The DG442CY+ is rated for 0°C to +70°C operation and guarantees <5nA off-leakage current at +85°C - significantly improved over prior-generation analog switches. On-resistance increases predictably with temperature (see Figure 5), but rDS(ON) match remains within 4Ω and flatness within 9Ω across the full specified range.
DG442CY+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Active
- Switch Circuit:
- SPST - NO
- Multiplexer/Demultiplexer Circuit:
- 1:1
- Number of Circuits:
- 4
- On-State Resistance (Max):
- 85Ohm
- Channel-to-Channel Matching (ΔRon):
- 4Ohm (Max)
- Voltage - Supply, Single (V+):
- 10V ~ 30V
- Voltage - Supply, Dual (V±):
- ±4.5V ~ 20V
- Switch Time (Ton, Toff) (Max):
- 250ns, 170ns
- -3db Bandwidth:
- -
- Charge Injection:
- 5pC
- Channel Capacitance (CS(off), CD(off)):
- 4pF, 4pF
- Current - Leakage (IS(off)) (Max):
- 500pA
- Crosstalk:
- -100dB @ 1MHz
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
DG442CY+ FAQ
1.How can I place an order for DG442CY+ through Aetrix?
Please submit a Request for Quotation (RFQ) for DG442CY+ 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 DG442CY+ reliable?
The price and inventory of DG442CY+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG442CY+ is usually 5 days.
3.What payment methods are accepted for DG442CY+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG442CY+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG442CY+?
DG442CY+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG442CY+ 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 DG442CY+?
For technical support, including DG442CY+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG442CY+ requirements.
6.How does Aetrix verify that DG442CY+ is sourced from the original manufacturer or authorized distributors?
All DG442CY+ 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 DG442CY+ meets industry standards.
7.What is the process for return or replacement of DG442CY+?
All DG442CY+ units undergo pre-shipment inspection (PSI). If there is an issue with DG442CY+, 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 DG442CY+ part is unused and in its original packaging.
Return procedure for DG442CY+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DG442CY+ Tags
-
SN74LVC1G3157DBVR
Texas Instruments
-
SN74LVC1G66DBVR
Texas Instruments
-
SN74LVC1G66DCKR
Texas Instruments
-
SN74LVC1G3157DSFR
Texas Instruments
-
1P1G3157QDCKRQ1
Texas Instruments
-
SN74LVC2G66DCUR
Texas Instruments
-
SN74LV4052APWR
Texas Instruments
-
74HC4051D,653
Nexperia USA Inc.
-
SN74LV4051APWR
Texas Instruments
-
CD74HC4052PWR
Texas Instruments
-
CD74HC4051PWR
Texas Instruments
-
TS5A3166DBVR
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
