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Analog Devices Inc. ADG509FBRNZ
- Part No.:
- ADG509FBRNZ
- Manufacturer:
- Analog Devices Inc.
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
ADG509FBRNZ.pdf
- Description:
- IC SWITCH SP4T X 2 270OHM 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,006
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Product details
Overview
ADG509FBRNZ from Analog Devices is a 4-channel differential fault-protected analog multiplexer with break-before-make switching, 270 Ω typical on-resistance, −40 V to +55 V continuous overvoltage tolerance, and 230 ns maximum tON. It operates across −40°C to +85°C and is used in industrial sensor signal routing where channel protection and signal integrity are critical.
For engineers reviewing the ADG509FBRNZ datasheet, ADG509FBRNZ pinout, ADG509FBRNZ application, or ADG509FBRNZ equivalent, this page delivers verified specifications, SOIC_N package details, fault-protection behavior under power-off conditions, and real-world design implications for high-reliability analog front-ends.
Technical Context
The ADG509FBRNZ implements a series n-channel/p-channel/n-channel MOSFET architecture per differential channel, enabling clamping and saturation during overvoltage events regardless of power state. Its 2-bit address decoding (A0, A1) selects one of four differential pairs, with EN enabling/disabling all channels simultaneously.
It guarantees break-before-make timing (tOPEN = 60–90 ns), supports dual ±15 V supplies or single 5 V operation, and features trench-isolated construction to eliminate latch-up. Fault current is limited to ≤2 μA during −40 V/+55 V overvoltage with supplies off.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Analog Channels | 4 differential (S1A/S1B through S4A/S4B) - enables simultaneous routing of balanced signals without crosstalk-induced common-mode error. |
| On-Resistance (RON) | 270 Ω typical at ±15 V - ensures minimal signal attenuation and gain error in precision instrumentation paths. |
| Fault Tolerance | −40 V to +55 V continuous - protects against sensor wiring faults, ESD transients, and power-rail collapse without external clamps. |
| Switching Speed | tON ≤ 230 ns, tOFF ≤ 130 ns - supports multiplexed data acquisition at up to ~1 MHz channel update rates. |
| Leakage (Off) | ±1 nA max at −40°C to +85°C - preserves accuracy in high-impedance sensor interfaces (e.g., thermocouples, pH electrodes). |
| Supply Range | Dual ±15 V or single 5 V - allows direct integration into legacy industrial systems with bipolar rails or modern low-voltage controllers. |
| Logic Compatibility | TTL/CMOS inputs (VINH ≥ 2.4 V, VINL ≤ 0.8 V) - interfaces directly with microcontrollers and FPGAs without level-shifting. |
Pinout & Package
ADG509FBRNZ is housed in a 16-lead SOIC_N (R-16) package, 7.5 mm × 4.4 mm, 1.75 mm height, RoHS-compliant, with standard 1.27 mm pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 16 | A0, A1 | 2-bit binary address inputs - select active differential pair (S1A/S1B to S4A/S4B); logic thresholds ensure noise margin in noisy industrial environments. |
| 2 | EN | Active-high enable - disables all channels when low, forcing open-circuit isolation and <2 μA leakage during system standby or fault recovery. |
| 3, 15 | VSS, GND | Negative supply and ground reference - VSS connects to −15 V (dual) or 0 V (single); GND provides stable 0 V reference for digital control logic. |
| 4, 13 | S1A, S1B | Differential source pair for Channel 1 - bidirectional terminals accepting or delivering balanced analog signals; matched RON minimizes common-mode rejection loss. |
| 5–7, 10–12 | S2A–S4A, S2B–S4B | Remaining differential source pairs - identical electrical characteristics to S1A/S1B; full channel-to-channel matching (ΔRON ≤ 3%) enables ratiometric measurements. |
| 8, 9 | DA, DB | Differential drain outputs - routed to ADC input or amplifier stage; low charge injection (15 pC) prevents settling errors in successive-approximation converters. |
| 14 | VDD | Positive supply input - accepts +15 V (dual) or +5 V (single); internal regulation ensures consistent switching performance across voltage range. |
Key Features
| Feature | Design Value |
|---|---|
| Fault protection with power off | Withstands −40 V to +55 V while drawing ≤2 μA leakage - eliminates need for external TVS diodes or power-rail supervision in safety-critical systems. |
| Break-before-make switching | tOPEN = 60–90 ns guaranteed - prevents momentary shorting between differential sensor inputs during channel transitions, avoiding transient damage or measurement corruption. |
| Latch-up immunity | Trench-isolated CMOS process - withstands >2 kV HBM ESD without functional interruption, suitable for unshielded field-deployed equipment. |
| Low on-resistance match | ΔRON ≤ 3% max across all 4 channels - enables precise differential gain calibration and reduces mismatch-induced offset drift in multi-sensor arrays. |
| Low charge injection | 15 pC typical - limits voltage glitch on high-impedance nodes (e.g., sample-and-hold capacitors), supporting 16-bit+ resolution data acquisition. |
Applications
| Industrial Process Monitoring | Medical Patient Monitoring |
|---|---|
|
Use Scenario: Multiplexing thermocouple, RTD, and pressure sensor outputs in PLC analog input modules. IC Role / Device Role / Timing Role: Fault-protected analog switch routing sensor signals to a shared sigma-delta ADC, with EN synchronized to ADC conversion start. Use Value: Withstands wiring faults (e.g., 24 V DC short to sensor line) without latch-up or parameter shift, ensuring continuous uptime in 24/7 manufacturing lines. |
Use Scenario: Selecting ECG lead configurations (I, II, III, aVR, aVL, aVF) in portable patient monitors. IC Role / Device Role / Timing Role: Differential multiplexer isolating biopotential inputs before instrumentation amplifier; break-before-make prevents electrode cross-coupling artifacts. Use Value: Sub-nA leakage preserves microvolt-level signal fidelity; ±55 V fault tolerance guards against defibrillator discharge coupling during emergency use. |
| Automotive Battery Management | Test & Measurement Equipment |
|
Use Scenario: Scanning cell voltages across 12–16 Li-ion battery strings in EV BMS units. IC Role / Device Role / Timing Role: High-voltage-tolerant switch connecting individual cell taps to isolated ADC, operating with VSS = −15 V referenced to pack midpoint. Use Value: Survives reverse-battery connection (−40 V) and load-dump transients (+55 V) without protection circuitry, reducing BOM count and board area. |
Use Scenario: Channel selection in automated test equipment for calibrating multichannel DAQ cards. IC Role / Device Role / Timing Role: Precision analog switch in reference signal path, enabling traceable NIST-calibrated voltage steps to be routed to DUT inputs. Use Value: 3% RON matching and 15 pC charge injection ensure <0.01% gain error and <1 LSB settling error in 24-bit metrology-grade systems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADG509FBRUZ | TSSOP-16 package (4.4 mm × 3.0 mm), same electrical specs - 35% smaller footprint, higher thermal resistance (θJA = 112°C/W vs. 77°C/W). | Better suited for space-constrained portable devices; less optimal for high-power-density industrial PCBs requiring thermal relief. | Select ADG509FBRUZ only when board area is primary constraint and ambient temperature remains <70°C. |
| MAX4619ESE+ | 4-channel single-ended (not differential), ±20 V fault tolerance, 45 Ω RON - lower on-resistance but no differential support or −40 V capability. | Applicable only where single-ended sensors dominate and bipolar overvoltage risk is limited to ±20 V. | Choose MAX4619ESE+ for cost-sensitive, non-differential applications with milder fault requirements; not a drop-in replacement. |
Compared with ADG509FBRUZ, ADG509FBRNZ offers superior thermal performance and mechanical robustness in industrial layouts; versus MAX4619ESE+, it delivers true differential fault protection essential for medical and automotive safety-critical signal chains.
Availability
ADG509FBRNZ is available at Aetrix Electronics and suitable for industrial process monitoring, medical patient monitoring, and automotive battery management requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant sourcing.
Supply support for ADG509FBRNZ 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
Analog Devices is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets since 1965.
The ADG509F belongs to Analog Devices' fault-protected analog switch family, engineered specifically for signal integrity and survivability in harsh environments where sensor wiring faults, power interruptions, and ESD events are routine operational hazards.
FAQ
What is the maximum overvoltage the ADG509FBRNZ can withstand with power supplies turned off?
The ADG509FBRNZ withstands continuous analog input overvoltages from −40 V to +55 V even when VDD and VSS are at 0 V. Under these conditions, leakage current is limited to ≤2 μA, preserving downstream circuitry and upstream sensors. This behavior is confirmed in the Absolute Maximum Ratings table and Figure 26 of the ADG509F datasheet Rev. F.
Does the ADG509FBRNZ support single-supply operation?
Yes, the ADG509FBRNZ operates with a single +5 V supply (VDD = +5 V, VSS = GND). In this configuration, the analog signal range is reduced to approximately 0.6 V to 4.4 V (VSS + 0.6 V to VDD − 0.6 V), and RON increases slightly versus dual ±15 V operation. Full specifications for single-supply use are provided in Table 1 of the datasheet.
Is the ADG509FBRNZ pin-compatible with the ADG508FBRNZ?
No. The ADG509FBRNZ is a 4-channel differential multiplexer with A0/A1 address lines and SxA/SxB/DA/DB pins, while the ADG508FBRNZ is an 8-channel single-ended device with A0/A1/A2 and eight Sx pins plus one D pin. Their pinouts differ fundamentally - see Figures 3 and 4 in the datasheet - and they are not interchangeable without PCB redesign.
What does "break-before-make" mean for the ADG509FBRNZ, and how is it guaranteed?
Break-before-make ensures that one differential channel fully disconnects before the next connects, preventing momentary shorts between sensor inputs. For the ADG509FBRNZ, tOPEN is specified at 60–90 ns minimum, verified across temperature and voltage. This timing is inherent to its internal decoder and driver design, not dependent on external timing control.
Can the ADG509FBRNZ be used in a 12-bit data acquisition system?
Yes. With 15 pC typical charge injection, <1 nA off-leakage, and 3% RON matching, the ADG509FBRNZ supports accurate 12-bit (and higher) acquisition. Its low settling time (<1 μs to 0.1%) and high off-isolation (93 dB at 100 kHz) minimize crosstalk and ghosting between channels in multiplexed systems.
ADG509FBRNZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Active
- Switch Circuit:
- SP4T
- Multiplexer/Demultiplexer Circuit:
- 4:1
- Number of Circuits:
- 2
- On-State Resistance (Max):
- 270Ohm (Typ)
- Channel-to-Channel Matching (ΔRon):
- 8.1Ohm
- Voltage - Supply, Single (V+):
- 15V
- Voltage - Supply, Dual (V±):
- ±15V
- Switch Time (Ton, Toff) (Max):
- 230ns, 130ns
- -3db Bandwidth:
- -
- Charge Injection:
- 15pC
- Channel Capacitance (CS(off), CD(off)):
- 3pF, 12pF
- Current - Leakage (IS(off)) (Max):
- 1nA
- Crosstalk:
- -
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
ADG509FBRNZ FAQ
1.How can I place an order for ADG509FBRNZ through Aetrix?
Please submit a Request for Quotation (RFQ) for ADG509FBRNZ 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 ADG509FBRNZ reliable?
The price and inventory of ADG509FBRNZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADG509FBRNZ is usually 5 days.
3.What payment methods are accepted for ADG509FBRNZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADG509FBRNZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADG509FBRNZ?
ADG509FBRNZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADG509FBRNZ 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 ADG509FBRNZ?
For technical support, including ADG509FBRNZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADG509FBRNZ requirements.
6.How does Aetrix verify that ADG509FBRNZ is sourced from the original manufacturer or authorized distributors?
All ADG509FBRNZ 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 ADG509FBRNZ meets industry standards.
7.What is the process for return or replacement of ADG509FBRNZ?
All ADG509FBRNZ units undergo pre-shipment inspection (PSI). If there is an issue with ADG509FBRNZ, 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 ADG509FBRNZ part is unused and in its original packaging.
Return procedure for ADG509FBRNZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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