My Inquiry
My Account
Analog Devices Inc./Maxim Integrated DG442ETE+
- Part No.:
- DG442ETE+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-WQFN Exposed Pad
- Datasheet:
-
DG442ETE+.pdf
- Description:
- IC SWITCH SPST-NOX4 85OHM 16TQFN
- Quantity:
- Payment:
- Shipping:
Inventory:120
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
DG442ETE+ from Maxim Integrated is a quad, normally-open (NO), single-pole/single-throw (SPST) analog switch IC designed for precision signal routing in bipolar or single-supply systems. It features 85Ω max on-resistance, <5nA off-leakage at +85°C, 10pC max charge injection, rail-to-rail analog signal handling (±15.5V), and TTL/CMOS-compatible logic inputs - enabling use in test equipment front-ends and battery-powered instrumentation.
For engineers reviewing the DG442ETE+ datasheet, DG442ETE+ pinout, DG442ETE+ application, or DG442ETE+ equivalent, key selection criteria include guaranteed on-resistance matching (4Ω max between channels), on-resistance flatness (9Ω max over signal range), ESD tolerance (2000V min), dual-supply operation (±4.5V to ±20V), and thin QFN-EP package compatibility with high-density PCB layouts.
Technical Context
The DG442ETE+ implements four independent SPST switches using a 44V silicon-gate process, supporting both unipolar (+10V to +30V) and bipolar (±4.5V to ±20V) supply configurations. Each switch conducts bidirectionally with matched rDS(ON) and tightly controlled rFLAT(ON), ensuring consistent signal integrity across all four channels.
Its logic interface accepts standard TTL/CMOS voltage levels, while internal clamping diodes protect S/D terminals against signals exceeding V+ or V−. The exposed pad (EP) must be connected to V+, and the N.C. pin (Pin 10 in SO/DIP, Pin 12 in QFN) is not internally bonded - critical for thermal and layout design in industrial-grade applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| rDS(ON) | 85Ω max - ensures minimal insertion loss and low distortion for audio and sensor signals up to ±15.5V. |
| ΔrDS(ON) | 4Ω max - guarantees channel-to-channel on-resistance matching for multi-channel calibration and multiplexing. |
| rFLAT(ON) | 9Ω max - maintains stable gain and linearity across full analog input range under bipolar supply operation. |
| Charge Injection | 10pC max - minimizes voltage glitch in sample-and-hold circuits and precision ADC front-ends. |
| Off-Leakage Current | <5nA at +85°C - preserves accuracy in high-impedance sensor interfaces and battery-operated metering. |
| tON/tOFF | <250ns / <170ns - supports fast switching in automated test equipment and real-time signal routing. |
| ESD Tolerance | 2000V min (HBM, Method 3015.7) - enables robust handling in manufacturing and field-deployed systems. |
Pinout & Package
The DG442ETE+ is housed in a 16-pin Thin QFN-EP (5mm × 5mm) package with exposed pad. Pin 1 is D1; Pin 2 is V−; Pin 3 is GND; Pin 4 is S4; Pin 5 is D4; Pin 6 is IN4; Pin 7 is IN3; Pin 8 is D3; Pin 9 is S3; Pin 10 is N.C.; Pin 11 is V+; Pin 12 is S2; Pin 13 is D2; Pin 14 is IN2; Pin 15 is IN1; Pin 16 is D1. Exposed pad (EP) must be soldered to V+ for thermal performance and ESD robustness.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN1–IN4 | Digital control input | TTL/CMOS-compatible logic inputs that enable respective SPST switch (high = ON for DG442). |
| S1–S4 | Analog source terminal | Low-impedance connection point for analog signal return path; bidirectional conduction with D pins. |
| D1–D4 | Analog drain terminal | Primary analog signal path terminal; supports rail-to-rail voltages up to ±15.5V with matched rDS(ON). |
| V+ | Positive supply rail | Connects to substrate and exposed pad; must be ≥ |V−| + 0.3V and ≤ 44V above V−. |
| V− | Negative supply rail | Required for bipolar operation; sets lower bound of analog signal range and defines off-state isolation. |
| GND | Logic reference ground | Reference for digital inputs only; not tied to analog signal path - enables mixed-signal system partitioning. |
| N.C. | No internal connection | Pin 10 is unconnected die bond site; must be left floating or grounded per layout best practices. |
| EP | Exposed thermal pad | Must be soldered to V+ plane; improves thermal dissipation (derate 20.8mW/°C above +70°C) and ESD path. |
Key Features
| Feature | Design Value |
|---|---|
| Quad SPST NO configuration | Four independent, non-latching switches with active-high logic - simplifies control sequencing in data acquisition systems. |
| Bidirectional analog conduction | Identical rDS(ON) and leakage in either direction - eliminates signal polarity constraints in transducer interfaces. |
| Rail-to-rail analog signal range | ±15.5V with ±16.5V supplies - supports full-scale industrial sensor outputs without external level-shifting. |
| Guaranteed rFLAT(ON) | 9Ω max variation across ±15.5V range - ensures amplitude consistency in multi-tone communication signal paths. |
| Low power consumption | 1.65mW max at +25°C - extends battery life in portable test instruments and handheld meters. |
Applications
| Automated Test Equipment (ATE) | Portable Data Acquisition Systems |
|---|---|
Use Scenario: Signal routing matrix in benchtop multimeter or LCR meter front-end, selecting between multiple sensor inputs and ADC channels. IC Role / Device Role / Timing Role: Quad SPST switch providing isolated, low-distortion analog paths with sub-250ns switching for rapid channel scanning. Use Value: 4Ω max rDS(ON) matching ensures measurement repeatability across channels; <5nA off-leakage prevents crosstalk-induced offset drift at high source impedances. |
Use Scenario: Battery-powered environmental monitor sampling temperature, humidity, and gas sensors via shared ADC. IC Role / Device Role / Timing Role: Low-power analog multiplexer enabling sequential sensor readout while minimizing standby current draw. Use Value: 1.65mW max power and rail-to-rail ±15.5V capability allow direct interfacing with unconditioned sensor outputs without external biasing. |
| Heads-Up Display (HUD) Video Routing | Military Radio Audio Switching |
Use Scenario: Selecting between primary and backup video sources feeding HUD projection optics in avionics systems. IC Role / Device Role / Timing Role: High-isolation SPST switch isolating video signal paths during source transitions to prevent display artifacts. Use Value: -100dB off-isolation rejection ratio and 10pC max charge injection suppress visual glitches during hot-switching of composite video signals. |
Use Scenario: Secure audio path selection between encrypted comms module, microphone preamp, and speaker driver in tactical radios. IC Role / Device Role / Timing Role: ESD-hardened analog switch enabling field-reconfigurable audio routing without signal degradation. Use Value: 2000V HBM ESD rating and <5nA leakage at +85°C ensure reliability in harsh electromagnetic environments and extended operational temperature ranges. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar SPST analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADG442BRUZ | 80Ω max rDS(ON), 15pC charge injection, SOIC-16 package only - no exposed pad or QFN option. | Lacks thin QFN-EP thermal performance; higher charge injection limits use in precision sample-and-hold. | Select when SOIC-16 footprint is mandatory and thermal load is moderate; verify rFLAT(ON) spec is not required. |
| TS5A3157DCKR | Single-channel, 0.9Ω typical rDS(ON), 3.3V-only supply - incompatible with ±15V or +24V operation. | Not suitable for high-voltage analog routing; limited to low-voltage consumer electronics. | Choose only for cost-sensitive, low-voltage (<5.5V) applications where quad integration and high-voltage support are unnecessary. |
Compared with ADG442BRUZ and TS5A3157DCKR, the DG442ETE+ uniquely combines quad SPST topology, ±20V bipolar support, 4Ω max rDS(ON) matching, and thermally enhanced QFN-EP packaging - making it the only option qualified for industrial ATE and military-grade signal routing where channel uniformity and thermal reliability are critical.
Availability
DG442ETE+ is available at Aetrix Electronics and suitable for automated test equipment, portable data acquisition systems, and military radio designs requiring stable component supply, long-term lifecycle assurance, and lead(Pb)-free compliance.
Supply support for DG442ETE+ 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 computing markets.
The DG442ETE+ belongs to Maxim's precision analog switch product line, engineered for applications demanding low distortion, tight channel matching, and robust operation across extended temperature and supply ranges.
FAQ
What is the operating temperature range for the DG442ETE+?
The DG442ETE+ is rated for industrial operation from -40°C to +85°C. This range is validated across all electrical specifications including rDS(ON), off-leakage current (<5nA at +85°C), and switching times. The device uses Maxim's 44V silicon-gate process to maintain parameter stability across this full range, and its Thin QFN-EP package enhances thermal dissipation to sustain performance under continuous load.
Does the DG442ETE+ support single-supply operation?
Yes, the DG442ETE+ supports single-supply operation from +10V to +30V. In this mode, V− must be connected to ground (0V), and the analog signal range becomes 0V to V+ − 0.5V. Key parameters like rDS(ON) (100Ω max) and charge injection (10pC max) remain specified and tested under single-supply conditions, though rFLAT(ON) and ΔrDS(ON) guarantees apply only with bipolar supplies per datasheet Note 4.
How should the exposed pad (EP) on the DG442ETE+ be connected?
The exposed pad (EP) on the DG442ETE+ must be soldered directly to the V+ power plane on the PCB. It is not a standalone V+ connection - the main V+ pin (Pin 11) must also be routed. Connecting EP to V+ reduces thermal resistance by ~50%, enabling 1667mW max power dissipation at +70°C (derated 20.8mW/°C above). Failure to connect EP degrades thermal performance and ESD robustness, potentially violating the 2000V HBM specification.
Is the DG442ETE+ pin-compatible with older DG442 variants?
Yes, the DG442ETE+ is pin-compatible with other 16-pin DG442 variants including DG442DY (SOIC) and DG442DJ (PDIP), sharing identical pin functions and spacing. However, the Thin QFN-EP footprint differs mechanically - land pattern and solder stencil must follow Maxim's T1655-2 package drawing (Document No. 21-0140). Electrical behavior, including timing and leakage, is improved over legacy versions but retains full functional equivalence.
What is the maximum analog signal voltage the DG442ETE+ can handle?
The DG442ETE+ supports rail-to-rail analog signals up to ±15.5V when operated with ±16.5V supplies, or 0V to V+ − 0.5V in single-supply mode. This limit is defined by the absolute maximum rating of (V− − 2V) to (V+ + 2V) on S/D pins. Exceeding these bounds risks forward-biasing internal clamping diodes, increasing leakage and distorting signal fidelity - especially critical in high-precision sensor and audio routing applications using the DG442ETE+.
DG442ETE+ 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:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-TQFN (5x5)
DG442ETE+ FAQ
1.How can I place an order for DG442ETE+ through Aetrix?
Please submit a Request for Quotation (RFQ) for DG442ETE+ 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 DG442ETE+ reliable?
The price and inventory of DG442ETE+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG442ETE+ is usually 5 days.
3.What payment methods are accepted for DG442ETE+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG442ETE+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG442ETE+?
DG442ETE+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG442ETE+ 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 DG442ETE+?
For technical support, including DG442ETE+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG442ETE+ requirements.
6.How does Aetrix verify that DG442ETE+ is sourced from the original manufacturer or authorized distributors?
All DG442ETE+ 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 DG442ETE+ meets industry standards.
7.What is the process for return or replacement of DG442ETE+?
All DG442ETE+ units undergo pre-shipment inspection (PSI). If there is an issue with DG442ETE+, 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 DG442ETE+ part is unused and in its original packaging.
Return procedure for DG442ETE+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DG442ETE+ 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…
