My Inquiry
My Account
Analog Devices Inc./Maxim Integrated DG442CY+T
- Part No.:
- DG442CY+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
DG442CY+T.pdf
- Description:
- IC SWITCH SPST-NOX4 85OHM 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,105
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
DG442CY+T 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 delivers 85Ω max on-resistance, 4Ω max on-resistance matching between channels, <5nA off-leakage at +85°C, 10pC max charge injection, and rail-to-rail analog signal handling from ±4.5V to ±20V or +10V to +30V supplies - enabling use in test equipment front-ends and battery-powered instrumentation.
For engineers reviewing the DG442CY+T datasheet, DG442CY+T pinout, DG442CY+T application, or DG442CY+T equivalent, key selection criteria include guaranteed rDS(ON) flatness (9Ω max), TTL/CMOS logic compatibility, ESD tolerance (2000V min), low power consumption (1.65mW), and verified performance across industrial temperature range (0°C to +70°C) in narrow SO package.
Technical Context
The DG442CY+T implements four independent SPST switches with active-high digital control inputs (IN1–IN4), where logic high enables conduction between corresponding S and D terminals. Its silicon-gate 44V process ensures robust operation under overvoltage transients and supports unbalanced supply configurations (e.g., +24V/−5V).
Switching is bidirectional with symmetric on-resistance behavior; off-isolation rejection ratio exceeds 60dB at 1MHz, and crosstalk between any two channels remains below −100dB. Charge injection is tightly controlled (10pC max) to minimize sampling error in sample-and-hold circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-Resistance (rDS(ON)) | 85Ω max - ensures minimal signal attenuation and gain error in precision analog paths |
| On-Resistance Matching | 4Ω max - enables matched channel performance critical for multiplexer accuracy and differential signal integrity |
| Charge Injection | 10pC max - limits voltage glitch on hold capacitors, supporting ≤12-bit settling in sample-and-hold designs |
| Analog Signal Range | Rail-to-rail: ±15.5V with ±16.5V supplies - allows full dynamic range utilization without clipping |
| Off-Leakage Current | <5nA at +85°C - preserves DC accuracy in high-impedance sensor interfaces and long-integration-time measurements |
| Supply Range | +10V to +30V (single) or ±4.5V to ±20V (dual) - supports flexible system-level power architecture |
| Logic Compatibility | TTL/CMOS - simplifies interface with microcontrollers, FPGAs, and legacy logic families without level-shifting |
Pinout & Package
Package: 16-pin narrow SO (SOIC-16), lead(Pb)-free, exposed pad connected to V+ per datasheet requirement.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN1–IN4 (Pins 15,14,6,7) | Digital control inputs | Active-high logic: high = switch ON (S↔D path closed); compatible with 0.8V/2.4V TTL thresholds |
| S1–S4 (Pins 1,12,9,4) | Analog source terminals | Low-impedance connection point for analog signal input or output; bidirectional conduction |
| D1–D4 (Pins 16,13,5,8) | Analog drain terminals | Paired with Sx to form SPST switch; symmetric rDS(ON) supports signal routing in either direction |
| V+ (Pin 11) | Positive supply rail | Must be ≥|V−| + 0.5V; substrate connection point; exposed pad (EP) must be tied to V+ |
| V− (Pin 2) | Negative supply rail | Required for dual-supply operation; sets lower bound of analog signal range |
| GND (Pin 3) | Ground reference | Logic ground reference; separate from analog signal return to minimize noise coupling |
| N.C. (Pin 10) | No internal connection | Not bonded; must remain unconnected or grounded per layout guidelines to avoid parasitic coupling |
Key Features
| Feature | Design Value |
|---|---|
| Guaranteed rFLAT(ON) | 9Ω max over full analog range - maintains consistent gain and linearity across signal swing |
| ESD tolerance | 2000V min (HBM, Method 3015.7) - reduces need for external protection in board-level ESD zones |
| Turn-on/off time | tON < 250ns, tOFF < 170ns - supports >1MHz switching in automated test and data acquisition systems |
| Power dissipation | 1.65mW max - enables use in thermally constrained portable and battery-operated applications |
| Temperature range | 0°C to +70°C - validated for commercial-grade instrumentation and communications infrastructure |
Applications
| Automated Test Equipment (ATE) Multiplexers | Portable Data Acquisition Front-Ends |
|---|---|
Use Scenario: Routing multiple sensor outputs to a shared ADC in benchtop or rack-mounted ATE systems. IC Role / Device Role / Timing Role: Quad SPST switch providing channel-selectable, low-distortion analog signal path with minimal crosstalk and leakage. Use Value: 4Ω rDS(ON) matching ensures measurement consistency across channels; 60dB off-isolation prevents signal bleed during channel scanning. |
Use Scenario: Battery-powered handheld meter selecting between voltage, current, and resistance measurement ranges. IC Role / Device Role / Timing Role: Low-power, rail-to-rail analog switch enabling flexible signal conditioning before precision ADC conversion. Use Value: 1.65mW max power and <5nA off-leakage at +85°C extend battery life and preserve accuracy in warm environments. |
| Heads-Up Display (HUD) Video Signal Switching | Military Radio Audio Routing |
Use Scenario: Selecting between primary and backup video sources feeding an aircraft HUD display driver. IC Role / Device Role / Timing Role: High-reliability analog switch handling composite or RGB video signals with minimal timing skew. Use Value: 250ns tON/170ns tOFF enables fast source switching without visible artifacts; 2000V ESD rating withstands cockpit ESD events. |
Use Scenario: Routing encrypted audio streams between radio modules, crypto units, and speaker/headset outputs in tactical radios. IC Role / Device Role / Timing Role: Secure, low-noise analog switch isolating sensitive audio paths while maintaining signal fidelity. Use Value: 10pC charge injection prevents audible pop/click during channel reconfiguration; rail-to-rail support handles wide-dynamic-range audio signals. |
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), 2.5Ω matching, −40°C to +85°C rating, same SO-16 footprint | Higher temp grade; slightly lower on-resistance but no guaranteed rFLAT(ON) spec | Preferred for extended temperature deployments where flatness is less critical than operating range |
| TS5A3157DCKR | Single SPST, 0.75Ω rDS(ON), +1.8V to +5.5V only, SC70-6 package | Lower voltage, single-channel, smaller package - not pin-compatible or functionally equivalent | Only suitable for low-voltage, space-constrained designs requiring ultra-low on-resistance, not quad-channel replacement |
Compared with DG442CY+T, ADG442BRZ offers broader temperature capability but lacks guaranteed on-resistance flatness; TS5A3157DCKR provides superior on-resistance at low voltage but requires PCB redesign due to different channel count, voltage range, and package - making DG442CY+T the optimal choice for industrial-grade, quad-channel, bipolar/rail-to-rail analog switching.
Availability
DG442CY+T is available at Aetrix Electronics and suitable for automated test equipment, portable instrumentation, heads-up displays, and military radio systems requiring stable component supply, lead(Pb)-free compliance, and commercial-temperature reliability.
Supply support for DG442CY+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) is a U.S.-based semiconductor company specializing in high-performance analog, mixed-signal, and power management ICs for industrial, communications, and automotive markets.
The DG442CY+T belongs to Maxim's legacy precision analog switch family, engineered for low distortion, high channel matching, and robust operation in signal routing, data acquisition, and test instrumentation applications.
FAQ
What is the maximum allowable supply voltage for DG442CY+T?
The DG442CY+T supports absolute maximum ratings of V+ ≤ 44V referenced to V−, with recommended operating ranges of ±4.5V to ±20V (dual) or +10V to +30V (single). Exceeding these limits risks permanent damage; proper sequencing (V+ first, then V− and logic) is required for reliable operation.
Does DG442CY+T support rail-to-rail analog signal operation?
Yes, DG442CY+T supports rail-to-rail analog signal handling: with ±16.5V supplies, the analog range extends to ±15.5V on both S and D terminals. This enables full utilization of ADC input ranges and eliminates signal clipping in precision measurement paths.
Is the exposed pad on the DG442CY+T package required to be connected?
Yes - the exposed pad (EP) on the DG442CY+T's narrow SO package must be connected to V+ as specified in the datasheet. It is not optional: EP serves as a substrate connection and thermal path; using it as the sole V+ connection is prohibited, and it must be supplemented by Pin 11.
What is the logic polarity of DG442CY+T control inputs?
DG442CY+T features active-high logic: IN1–IN4 inputs drive the corresponding SPST switch ON (closed) when logic high (≥2.4V), and OFF (open) when logic low (≤0.8V). This matches standard TTL/CMOS drivers and simplifies interface with microcontrollers and FPGAs.
How does DG442CY+T perform at elevated temperatures?
DG442CY+T guarantees off-leakage current <5nA at +85°C and maintains 85Ω max rDS(ON) across 0°C to +70°C. At +85°C, leakage increases predictably (per typical curves), but the device remains fully functional within its specified industrial-grade performance envelope.
DG442CY+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):
- 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+T FAQ
1.How can I place an order for DG442CY+T through Aetrix?
Please submit a Request for Quotation (RFQ) for DG442CY+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 DG442CY+T reliable?
The price and inventory of DG442CY+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG442CY+T is usually 5 days.
3.What payment methods are accepted for DG442CY+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG442CY+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG442CY+T?
DG442CY+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG442CY+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 DG442CY+T?
For technical support, including DG442CY+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG442CY+T requirements.
6.How does Aetrix verify that DG442CY+T is sourced from the original manufacturer or authorized distributors?
All DG442CY+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 DG442CY+T meets industry standards.
7.What is the process for return or replacement of DG442CY+T?
All DG442CY+T units undergo pre-shipment inspection (PSI). If there is an issue with DG442CY+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 DG442CY+T part is unused and in its original packaging.
Return procedure for DG442CY+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DG442CY+T 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…
