My Inquiry
My Account
Analog Devices Inc./Maxim Integrated DG419CY+
- Part No.:
- DG419CY+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
DG419CY+.pdf
- Description:
- IC SWITCH SPDT X 1 35OHM 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,204
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
DG419CY+ from Maxim Integrated is a precision CMOS single-pole/double-throw (SPDT) analog switch with one normally closed (S1) and one normally open (S2) channel, 35Ω max on-resistance at ±15V, <5nA off-leakage at +85°C, and 175ns max tON - used in audio signal routing, test equipment, and battery-operated systems requiring rail-to-rail analog handling and TTL/CMOS logic compatibility.
For engineers reviewing the DG419CY+ datasheet, DG419CY+ pinout, DG419CY+ application, or DG419CY+ equivalent, key selection criteria include guaranteed 3Ω max on-resistance matching between S1/S2 channels, 4Ω max on-resistance flatness over full signal range, 10pC max charge injection, ESD tolerance ≥2000V per Method 3015.7, and dual-supply operation from ±4.5V to ±20V or single-supply from +10V to +30V.
Technical Context
The DG419CY+ implements a silicon-gate CMOS architecture optimized for low distortion and minimal signal-dependent on-resistance variation. Its SPDT topology supports break-before-make switching with 5–13ns guaranteed interval, enabling clean channel isolation during reconfiguration.
It features rail-to-rail analog signal handling across ±15.5V (bipolar) or 0V to +12V (single-supply), with logic-level inputs compatible with both TTL (VL = +5V) and CMOS (VL = V+) configurations. Internal clamping diodes protect S/D terminals against overvoltage up to ±2V beyond supply rails.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Switch Type | SPDT with one normally closed (S1) and one normally open (S2) channel |
| RDS(ON) Max | 35Ω at ±15V - ensures minimal signal attenuation and thermal drift in precision signal paths |
| ΔRDS(ON) Match | 3Ω max between S1/S2 - enables matched gain/phase response in differential or dual-path circuits |
| RFLAT(ON) | 4Ω max over full analog range - maintains consistent channel linearity across ±15.5V input swing |
| Charge Injection | 10pC max - limits voltage glitch on sample-and-hold capacitors and preserves ADC accuracy |
| tON/tOFF | 175ns/145ns max - supports high-speed multiplexing in data acquisition and communications systems |
| Off-Leakage @ +85°C | <5nA - prevents DC error accumulation in long-duration sampling or high-impedance sensor interfaces |
Pinout & Package
Package: 8-pin SO (Small Outline) - RoHS-compliant, surface-mount, 150 mil body width, JEDEC MS-012AC standard.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | S1 (Source 1) | Normally closed analog terminal - conducts when IN = 0, ideal for default-signal or fail-safe paths |
| 2 | S2 (Source 2) | Normally open analog terminal - conducts when IN = 1, used for active selection or alternate signal routing |
| 3 | GND | Logic ground reference - must be tied to system digital ground; separates logic domain from analog supplies |
| 4 | V+ | Analog positive supply - supports +10V to +30V single-supply or +4.5V to +20V bipolar positive rail |
| 5 | VL | Logic supply input - set to +5V for TTL compatibility or to V+ for CMOS-level logic thresholds |
| 6 | IN | Digital control input - accepts 0.8V/2.4V logic thresholds; inverts function relative to DG417/DG418 |
| 7 | V− | Analog negative supply - supports −4.5V to −20V in bipolar mode; tie to 0V for single-supply operation |
| 8 | D | Common drain terminal - bidirectional analog I/O node shared by both S1 and S2 switches |
Key Features
| Feature | Design Value |
|---|---|
| Guaranteed RDS(ON) match | 3Ω max between S1 and S2 - eliminates gain mismatch in dual-channel instrumentation front-ends |
| Rail-to-rail signal handling | ±15.5V analog range with ±16.5V supplies - preserves full dynamic range without clipping in ±15V systems |
| Low charge injection | 10pC max - reduces settling error in 12-bit+ sample-and-hold circuits with ≤100nF hold capacitors |
| ESD robustness | ≥2000V HBM per Method 3015.7 - withstands handling and board-level transients without protection circuitry |
| Bipolar/single-supply flexibility | Operates from ±4.5V to ±20V or +10V to +30V - simplifies power architecture in mixed-signal industrial designs |
Applications
| Audio Signal Routing | Test Equipment Multiplexing |
|---|---|
Use Scenario: Switching between microphone preamp outputs and ADC inputs in portable audio analyzers. IC Role / Device Role / Timing Role: SPDT analog switch selecting between two analog sources while maintaining signal integrity and low crosstalk. Use Value: 85dB crosstalk and 68dB off-isolation prevent audible bleed-through; 10pC charge injection avoids pop/click artifacts during switching. |
Use Scenario: Channel selection in automated test equipment (ATE) scanning multiple DUTs to a shared measurement unit. IC Role / Device Role / Timing Role: High-reliability SPDT switch enabling sequential analog stimulus/response routing under microcontroller control. Use Value: 35Ω RDS(ON) and 3Ω match ensure consistent loading across channels; <5nA leakage preserves accuracy during long dwell times. |
| Battery-Operated Data Loggers | Modem Analog Front-End |
Use Scenario: Low-power multiplexing of thermistor, RTD, and voltage sensor signals into a single SAR ADC in field-deployed loggers. IC Role / Device Role / Timing Role: Precision analog switch minimizing standby current and signal path error in energy-constrained systems. Use Value: 35µW max power consumption extends battery life; rail-to-rail operation supports full sensor output range without level-shifting. |
Use Scenario: Line interface selection between voice-band and fax-band filters in legacy PSTN modems. IC Role / Device Role / Timing Role: SPDT switch isolating analog signal paths to prevent interference between simultaneous voice/fax operations. Use Value: Break-before-make timing (5–13ns) prevents momentary short-circuits; 4Ω RFLAT(ON) ensures flat frequency response across 0–4kHz band. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar SPDT analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADG1419BRMZ | Higher RDS(ON) (1.3Ω typ), wider supply (±15V only), no guaranteed RDS(ON) match spec | Better for low-RDS(ON) critical apps; lacks DG419CY+'s 3Ω match guarantee and 2000V ESD rating | Choose ADG1419BRMZ only if sub-2Ω on-resistance outweighs need for matched channels and ESD margin. |
| TS5A23157DCUR | Lower voltage rating (5.5V max), higher leakage (>100nA @ +85°C), no bipolar support | Limited to low-voltage consumer electronics; incompatible with ±15V industrial or telecom signal chains | Select TS5A23157DCUR only for 3.3V/5V battery-powered devices where cost and size supersede precision and ruggedness. |
Compared with ADG1419BRMZ and TS5A23157DCUR, the DG419CY+ uniquely delivers guaranteed 3Ω RDS(ON) matching, bipolar ±20V operation, and 2000V ESD tolerance - making it the only option among the three qualified for precision, high-voltage, and harsh-environment analog routing.
Availability
DG419CY+ is available at Aetrix Electronics and suitable for audio signal routing, test equipment multiplexing, and battery-operated data loggers requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for DG419CY+ 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 DG419CY+ belongs to Maxim's precision analog switch family, engineered for low distortion, matched channel performance, and robust operation in demanding signal routing and data acquisition systems.
FAQ
What is the maximum allowable supply voltage for DG419CY+?
The DG419CY+ supports absolute maximum ratings of V+ ≤ +44V referenced to V−, and GND ≤ +25V referenced to V−. For reliable operation, use bipolar supplies from ±4.5V to ±20V or single-supply from +10V to +30V. Exceeding these ranges risks permanent damage, as confirmed in the Absolute Maximum Ratings table of the DG419CY+ datasheet.
Does DG419CY+ support rail-to-rail analog signal operation?
Yes, the DG419CY+ supports rail-to-rail analog signal handling: with ±16.5V supplies, the analog signal range extends to ±15.5V; with +13.2V single supply, it covers 0V to +12V. This capability is explicitly specified in the Electrical Characteristics tables and verified across temperature in Typical Operating Characteristics plots.
What is the guaranteed on-resistance match between S1 and S2 channels in DG419CY+?
The DG419CY+ guarantees ΔRDS(ON) ≤ 3Ω between its S1 and S2 channels under bipolar supply conditions (e.g., V+ = +16.5V, V− = −16.5V). This parameter is 100% tested and specified in the Electrical Characteristics section, ensuring matched conduction for precision differential or dual-path applications.
Can DG419CY+ operate with unbalanced supplies like +24V and −5V?
Yes, the DG419CY+ supports unbalanced supplies such as +24V and −5V, provided the difference between V+ and V− does not exceed +44V and all pins remain within their absolute maximum voltage ratings. This flexibility is documented in the Applications Information section under "Operation with Supply Voltages Other than ±15V."
What logic levels are compatible with the IN pin of DG419CY+?
The IN pin of DG419CY+ accepts TTL-compatible logic when VL = +5V (VINL ≤ 0.8V, VINH ≥ 2.4V) or CMOS-compatible logic when VL = V+. Both configurations are fully supported and characterized across temperature, as detailed in the Electrical Characteristics tables for dual- and single-supply operation modes.
DG419CY+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Active
- Switch Circuit:
- SPDT
- Multiplexer/Demultiplexer Circuit:
- 2:1
- Number of Circuits:
- 1
- On-State Resistance (Max):
- 35Ohm
- Channel-to-Channel Matching (ΔRon):
- 3Ohm (Max)
- Voltage - Supply, Single (V+):
- 10V ~ 30V
- Voltage - Supply, Dual (V±):
- ±4.5V ~ 20V
- Switch Time (Ton, Toff) (Max):
- 175ns, 145ns
- -3db Bandwidth:
- -
- Charge Injection:
- 3pC
- Channel Capacitance (CS(off), CD(off)):
- 8pF, 8pF
- Current - Leakage (IS(off)) (Max):
- 250pA
- Crosstalk:
- -85dB @ 1MHz
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
DG419CY+ FAQ
1.How can I place an order for DG419CY+ through Aetrix?
Please submit a Request for Quotation (RFQ) for DG419CY+ 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 DG419CY+ reliable?
The price and inventory of DG419CY+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG419CY+ is usually 5 days.
3.What payment methods are accepted for DG419CY+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG419CY+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG419CY+?
DG419CY+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG419CY+ 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 DG419CY+?
For technical support, including DG419CY+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG419CY+ requirements.
6.How does Aetrix verify that DG419CY+ is sourced from the original manufacturer or authorized distributors?
All DG419CY+ 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 DG419CY+ meets industry standards.
7.What is the process for return or replacement of DG419CY+?
All DG419CY+ units undergo pre-shipment inspection (PSI). If there is an issue with DG419CY+, 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 DG419CY+ part is unused and in its original packaging.
Return procedure for DG419CY+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DG419CY+ 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…
