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Renesas DG442DJZ
- Part No.:
- DG442DJZ
- Manufacturer:
- Renesas
- Package:
- 16-DIP (0.300", 7.62mm)
- Datasheet:
-
DG442DJZ.pdf
- Description:
- IC SWITCH SPST-NOX4 85OHM 16DIP
- Quantity:
- Payment:
- Shipping:
Inventory:3,140
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Product details
Overview
DG442DJZ from Intersil is a monolithic quad SPST CMOS analog switch with TTL/CMOS-compatible digital inputs, 85Ω max ON resistance, 250ns max tON, and ±20V analog signal range. It operates from single (5–34V) or split (±5V to ±22V) supplies and serves as a drop-in replacement for DG202 in precision audio routing and data acquisition front-ends.
For engineers reviewing the DG442DJZ datasheet, DG442DJZ pinout, DG442DJZ application, or DG442DJZ equivalent, key selection criteria include logic polarity (active-HIGH control), 44V max supply differential, low 1pC typical charge injection, and Pb-free PDIP packaging suitable for through-hole wave soldering.
Technical Context
The DG442DJZ implements four independent bilateral SPST switches using a high-voltage silicon-gate CMOS process with epitaxial isolation to prevent latch-up. Its logic polarity is inverted relative to DG441: INx = HIGH enables conduction (ON), while LOW disables (OFF).
It supports rail-to-rail analog signal switching across ±20V with minimal rDS(ON) variation (<10Ω over ±5V input), low OFF capacitance (4pF), and high OFF isolation (60dB at 1MHz). Charge injection is minimized to ±2pC (single-supply) or ±1pC (dual-supply), critical for sample-and-hold accuracy.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| ON Resistance (max) | 85Ω at +25°C, V+ = ±15V - ensures <0.1% gain error in 1kΩ impedance signal paths |
| Turn-On Time (max) | 250ns with RL = 1kΩ, CL = 35pF - supports >1MHz multiplexed data acquisition |
| Analog Signal Range | ±20V (dual supply), 0–12V (single supply) - handles full-scale industrial sensor outputs |
| Charge Injection | ±1pC (dual supply), ±2pC (single supply) - limits hold-mode voltage step to <2μV in 1nF sampling capacitors |
| Supply Voltage Range | V+ to V− ≤ 44V; V+ ≤ +34V, V− ≥ −25V - enables flexible biasing for ±15V op-amp interfaces |
| Logic Thresholds | VIL ≤ 0.8V, VIH ≥ 2.4V - ensures robust interfacing with 3.3V/5V microcontrollers and FPGAs |
| OFF Isolation | 60dB at 1MHz - suppresses crosstalk between adjacent channels in multi-signal systems |
Pinout & Package
DG442DJZ is housed in a 16-lead plastic dual-in-line package (PDIP), RoHS-compliant Pb-free variant, with 0.300-inch body width and through-hole mounting. Pin 12 is NC (no internal connection); substrate tie to V+ (pin 13) provides backside isolation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 8, 9, 16 | IN1–IN4 | Active-HIGH logic controls: HIGH = switch ON (unlike DG441) |
| 2, 7, 10, 15 | D1–D4 | Drain (output) terminals - bidirectional, matched to source pins |
| 3, 6, 11, 14 | S1–S4 | Source (input) terminals - symmetric AC performance with drain pins |
| 4 | V− | Negative supply rail - must be ≤ −25V referenced to GND |
| 5 | GND | Logic common reference - separate from analog ground in mixed-signal layouts |
| 13 | V+ | Positive supply and substrate tie - limits max V+ to +34V vs GND |
| 12 | NC | No internal connection - must remain unconnected per datasheet |
Key Features
| Feature | Design Value |
|---|---|
| Bilateral SPST switching | Identical rDS(ON) and capacitance in both directions - enables true AC-coupled signal routing |
| Low charge injection (±1pC) | Reduces settling error in sample-and-hold circuits without requiring complex compensation |
| Wide supply flexibility | Operates from +5V to +34V single-ended, ±5V to ±22V split, or asymmetric rails up to 44V differential |
| TTL/CMOS logic compatibility | Direct interface with 3.3V/5V controllers without level-shifting - VIH/VIL margins exceed JEDEC standards |
| Latch-up immunity | Epitaxial layer prevents destructive latch-up under transient overvoltage or ESD stress |
Applications
| Audio Switching | Data Acquisition |
|---|---|
Use Scenario: Routing line-level stereo signals between multiple codecs and amplifiers in pro-audio mixers. IC Role / Device Role / Timing Role: Quad SPST analog switch providing channel-selectable signal path with <0.01% THD+N. Use Value: 85Ω rDS(ON) and 4pF OFF capacitance minimize frequency response roll-off and crosstalk below −100dB. |
Use Scenario: Multiplexing 16-channel sensor inputs into a single 16-bit ADC in industrial PLC modules. IC Role / Device Role / Timing Role: Precision analog switch enabling sequential sampling with <2μV hold-step error. Use Value: ±1pC charge injection and ±20V signal range support accurate DC-coupled thermocouple and strain gauge measurements. |
| Sample and Hold Circuits | Automatic Test Equipment |
Use Scenario: Fast-settling hold capacitor charging in high-speed digitizers for oscilloscope front-ends. IC Role / Device Role / Timing Role: Low-tON (250ns), low-charge-injection switch controlling acquisition window timing. Use Value: 250ns tON allows sub-microsecond sampling windows; ±1pC injection ensures <0.5LSB error at 16-bit resolution. |
Use Scenario: Reconfigurable signal path routing in ATE pin electronics for semiconductor wafer testing. IC Role / Device Role / Timing Role: High-isolation (60dB), fast-switching component enabling test signal injection and response capture. Use Value: 60dB OFF isolation prevents leakage-induced measurement drift; 44V supply range accommodates wide-VDD DUT interfaces. |
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-supply only (2.7–5.5V); 60Ω rDS(ON); 10ns tON; no dual-supply capability | Optimized for battery-powered portable instruments, not ±15V industrial systems | Select when ultra-low power and fast switching at 3.3V are required; avoid for dual-rail designs. |
| ADG1412BRUZ | Quad SPST, 1.5Ω rDS(ON), 200ns tON, ±15V supply; requires external logic inversion for DG442-equivalent behavior | Higher precision (0.04Ω rDS(ON) flatness), but higher cost and tighter layout constraints | Choose for metrology-grade signal integrity where <0.01Ω rDS(ON) variation matters; verify logic polarity mapping. |
Compared with MAX4618ESE+ and ADG1412BRUZ, DG442DJZ uniquely balances wide supply range (±22V), moderate speed (250ns), and legacy DG202 compatibility - making it optimal for retrofitting existing industrial and test equipment without PCB redesign.
Availability
DG442DJZ is available at Aetrix Electronics and suitable for audio switching, data acquisition, and automatic test equipment requiring stable component supply across extended temperature (−40°C to +85°C) and long-lifecycle industrial programs.
Supply support for DG442DJZ 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
Intersil (now part of Renesas Electronics) is a U.S.-based analog and mixed-signal IC designer known for high-reliability interface, power, and precision signal-chain products.
The DG442DJZ belongs to Intersil's legacy analog switch family engineered for drop-in upgrades of DG202-based systems, emphasizing robustness, wide supply operation, and low distortion in industrial and instrumentation applications.
FAQ
What is the logic polarity of DG442DJZ compared to DG441?
DG442DJZ uses active-HIGH logic: an INx pin at ≥2.4V turns the corresponding switch ON, while DG441 is active-LOW. This inversion is the sole functional difference between the two parts - all electrical specs, pinout, and package are identical. DG442DJZ directly replaces DG202, whereas DG441 replaces DG201A.
Can DG442DJZ operate from a single 12V supply?
Yes, DG442DJZ supports single-supply operation from 5V to 34V. At V+ = 12V and V− = 0V, its analog signal range is 0–12V, rDS(ON) is ≤160Ω, and tON is ≤450ns. The device maintains TTL/CMOS compatibility, with VIH ≥2.4V and VIL ≤0.8V referenced to GND (pin 5).
Is the NC pin (pin 12) safe to leave unconnected on DG442DJZ?
Yes - pin 12 is explicitly designated "No Internal Connection" in the DG442DJZ datasheet. It must remain unconnected on the PCB; routing traces or applying voltage to this pin may cause unpredictable behavior or damage. All other pins require proper termination per the recommended operating conditions.
How does DG442DJZ achieve latch-up immunity?
DG442DJZ uses an epitaxial layer in its high-voltage silicon-gate CMOS process to isolate the p-n-p-n parasitic structure that causes latch-up in older CMOS technologies. This design eliminates susceptibility to destructive latch-up under overvoltage, ESD, or rapid supply transients - a critical reliability feature for industrial environments.
What is the maximum allowable supply differential for DG442DJZ?
The absolute maximum V+ to V− differential for DG442DJZ is 44V. However, individual rail limits apply: V+ must not exceed +34V relative to GND, and V− must not go below −25V relative to GND. For example, ±22V supplies (44V differential) are valid, but +30V/−20V (50V differential) violates the 44V limit and risks permanent damage.
DG442DJZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Obsolete
- Switch Circuit:
- SPST - NO
- Multiplexer/Demultiplexer Circuit:
- 1:1
- Number of Circuits:
- 4
- On-State Resistance (Max):
- 85Ohm
- Channel-to-Channel Matching (ΔRon):
- -
- Voltage - Supply, Single (V+):
- 5V ~ 34V
- Voltage - Supply, Dual (V±):
- ±5V ~ 22V
- Switch Time (Ton, Toff) (Max):
- 250ns, 210ns
- -3db Bandwidth:
- -
- Charge Injection:
- -1pC
- 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:
- Through Hole
- Supplier Device Package:
- 16-PDIP
DG442DJZ FAQ
1.How can I place an order for DG442DJZ through Aetrix?
Please submit a Request for Quotation (RFQ) for DG442DJZ 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 DG442DJZ reliable?
The price and inventory of DG442DJZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG442DJZ is usually 5 days.
3.What payment methods are accepted for DG442DJZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG442DJZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG442DJZ?
DG442DJZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG442DJZ 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 DG442DJZ?
For technical support, including DG442DJZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG442DJZ requirements.
6.How does Aetrix verify that DG442DJZ is sourced from the original manufacturer or authorized distributors?
All DG442DJZ 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 DG442DJZ meets industry standards.
7.What is the process for return or replacement of DG442DJZ?
All DG442DJZ units undergo pre-shipment inspection (PSI). If there is an issue with DG442DJZ, 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 DG442DJZ part is unused and in its original packaging.
Return procedure for DG442DJZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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