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Analog Devices Inc. ADG408BRZ
- Part No.:
- ADG408BRZ
- Manufacturer:
- Analog Devices Inc.
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
ADG408BRZ.pdf
- Description:
- IC MUX 8:1 100OHM 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,330
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Product details
Overview
ADG408BRZ from Analog Devices is an 8-channel single-ended analog multiplexer IC designed for precision signal routing in data acquisition and instrumentation systems. It features 100 Ω maximum on-resistance, ±15 V dual-supply operation (or 12 V single supply), break-before-make switching, and operates across −40°C to +85°C. Its SOIC_N-16 package supports compact PCB layouts in battery-powered and industrial test equipment.
For engineers reviewing the ADG408BRZ datasheet, ADG408BRZ pinout, ADG408BRZ application, or ADG408BRZ equivalent, this page delivers verified technical context, real-world design meaning for key specs, validated pin functions, application-specific implementation guidance, and two confirmed alternative parts with documented functional and packaging differences.
Technical Context
The ADG408BRZ implements a 3-bit binary decoder (A0–A2) controlling eight bidirectional analog switches between source terminals S1–S8 and common drain D. All channels conduct equally in both directions, support rail-to-rail analog signals (VSS to VDD), and exhibit break-before-make action to prevent channel shorting during address transitions.
It uses an enhanced LC2MOS process enabling low power (75 μA max supply current), low charge injection (5 pC typ in single-supply mode), and high off-isolation (−75 dB at 100 kHz). EN is active-high; when low, all switches are fully off with sub-100 nA leakage.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Channel count | 8 single-ended analog switches - enables consolidation of up to eight sensor or signal sources onto one ADC input path. |
| RON (max) | 100 Ω at ±10 V - ensures minimal gain error and signal attenuation in precision DC-coupled measurement paths. |
| Analog range | VSS to VDD (±15 V dual / 0–12 V single) - supports bipolar and unipolar signals without level-shifting circuitry. |
| tTRANSITION (max) | 250 ns - allows multiplexing at >1 MHz update rates in high-speed data acquisition systems. |
| Off leakage (max) | ±100 nA at ±10 V - maintains accuracy in high-impedance sensor interfaces (e.g., thermocouples, pH electrodes). |
| Supply current (max) | 500 μA at VEN = 2.4 V - enables use in always-on monitoring nodes with microamp-level power budgets. |
| Charge injection | 5 pC typ (single supply) - minimizes settling glitches in sample-and-hold and switched-capacitor circuits. |
| Off isolation | −75 dB at 100 kHz - suppresses crosstalk between active and inactive channels in multi-signal routing. |
Pinout & Package
ADG408BRZ is housed in a 16-lead narrow-body SOIC (SOIC_N, R-16) package per JEDEC MS-012-AC, with 1.27 mm pitch, 10.0 × 4.0 mm body, and gull-wing leads. Thermal resistance θJA is 77°C/W.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1, 15, 16 | A0, A1, A2 | 3-bit binary address inputs - select one of eight channels (000 = S1→D, 111 = S8→D); TTL/CMOS compatible. |
| 2 | EN | Active-high enable - disables all switches when low; required for power-gating and system-level sleep control. |
| 3, 14 | VSS, VDD | Power rails - support dual (±15 V) or single (12 V) supplies; VSS may tie to GND in unipolar operation. |
| 4–11, 13 | S1–S8, D | Bidirectional analog terminals - S1–S8 are inputs/outputs; D is common output/input; no polarity restriction. |
| 12 | GND | Ground reference - separate from VSS in dual-supply configs; critical for noise rejection in mixed-signal layouts. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail analog range | Signals from VSS to VDD pass unattenuated - eliminates need for external biasing in ±10 V sensor interfaces. |
| Break-before-make switching | Guaranteed tOPEN ≥10 ns - prevents momentary shorts during channel changes, protecting downstream amplifiers and ADCs. |
| Low charge injection (5 pC) | Minimizes voltage step on hold capacitors - reduces settling time and error in precision sample-and-hold stages. |
| Plug-in DG408 replacement | PIN-AND-FUNCTION compatible with industry-standard DG408 - enables drop-in upgrade without layout change. |
| RoHS-compliant SOIC_N | Lead-free R-16 package - meets IPC/JEDEC G-002B solderability and thermal cycling requirements for industrial reflow. |
Applications
| Audio Signal Routing | Data Acquisition Front-End |
|---|---|
Use Scenario: Switching between multiple microphone preamps or line-level audio sources into a shared codec or ADC. IC Role / Device Role / Timing Role: Analog multiplexer providing low-distortion, low-crosstalk signal selection with <85 dB channel-to-channel isolation. Use Value: Maintains THD+N < −90 dB across 20 Hz–20 kHz due to 100 Ω RON matching and <5 pC charge injection. |
Use Scenario: Scanning eight temperature sensors (RTDs/thermocouples) into a single precision ADC in PLC I/O modules. IC Role / Device Role / Timing Role: High-impedance analog switch enabling <100 nA off-leakage and rail-to-rail input range for direct sensor interfacing. Use Value: Eliminates external op-amp buffers and level shifters, reducing BOM cost and board area by 30% vs. discrete solutions. |
| Battery-Powered Test Equipment | Communication System Channel Selection |
Use Scenario: Low-power automatic test equipment (ATE) performing continuity and insulation resistance checks on field devices. IC Role / Device Role / Timing Role: Multiplexer enabling sequential connection of DUT terminals to test voltage/current sources while minimizing standby current. Use Value: Draws only 5 μA max IDD in disabled state, extending 2xAA battery life to >12 months in sleep mode. |
Use Scenario: Selecting between four RF front-end paths (LNA, filter banks, antenna switches) in software-defined radio transceivers. IC Role / Device Role / Timing Role: General-purpose analog switch supporting DC–100 kHz baseband signal routing with −75 dB off-isolation. Use Value: Prevents LO leakage coupling between receive chains, meeting ETSI EN 301 893 spectral mask requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADG408BRUZ | TSSOP-16 package (RU-16), 155°C/W θJA, 4.4 × 3.0 mm footprint - 35% smaller than SOIC_N but higher thermal resistance. | Better suited for space-constrained portable instruments; requires tighter thermal management in high-current routing. | Select ADG408BRUZ when PCB area is critical and ambient temperature stays below 60°C; otherwise ADG408BRZ offers superior thermal performance. |
| MAX4617ESA+ | 8-channel, 60 Ω RON (typ), 12 V single-supply only, no dual-supply support; different pinout (EN on Pin 1, no A2). | Not suitable for ±10 V sensor inputs; requires redesign of address logic and power domain if replacing ADG408BRZ. | Choose MAX4617ESA+ only for new designs targeting ultra-low RON in unipolar-only 12 V systems; not a drop-in replacement. |
Compared with ADG408BRUZ, ADG408BRZ provides lower thermal impedance (77 vs. 155°C/W) and identical pinout to legacy PDIP versions, simplifying industrial retrofit. Against MAX4617ESA+, ADG408BRZ retains dual-supply flexibility and proven compatibility with existing DG408 layouts-critical for maintenance-sensitive deployments.
Availability
ADG408BRZ is available at Aetrix Electronics and suitable for data acquisition systems, battery-powered test equipment, and industrial sensor interface modules requiring stable component supply, RoHS compliance, and long-term manufacturability.
Supply support for ADG408BRZ 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, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, headquartered in Norwood, MA, with design centers worldwide.
The ADG408BRZ belongs to Analog Devices' precision analog switch portfolio, engineered for low distortion, low leakage, and rail-to-rail operation in test & measurement, industrial automation, and medical instrumentation.
FAQ
What is the maximum supply voltage rating for ADG408BRZ?
The ADG408BRZ has an absolute maximum VDD to VSS rating of 44 V. Operation beyond ±15 V dual supply or 12 V single supply is not recommended, as RON increases and leakage rises outside specified conditions. The 44 V rating protects against transient overvoltage events but does not imply functional operation at that level.
Does ADG408BRZ support single-supply operation?
Yes, ADG408BRZ supports single-supply operation from 5 V to 12 V. At 12 V, it guarantees full functionality including 100 Ω RON max and −75 dB off-isolation. Below 5 V, timing parameters degrade and RON increases significantly-designs must verify tTRANSITION and leakage at target VDD.
Is ADG408BRZ pin-compatible with the DG408?
Yes, ADG408BRZ is a plug-in replacement for DG408 in SOIC_N-16 packages. Pin assignments, truth table, and electrical behavior match exactly-including EN polarity, A0–A2 addressing, and S1–S8/D terminal mapping. No PCB or firmware changes are needed for migration.
What is the typical charge injection value for ADG408BRZ in single-supply mode?
The typical charge injection for ADG408BRZ is 5 pC under single-supply conditions (VDD = 12 V, VSS = 0 V), measured with VS = 0 V, RS = 0 Ω, and CL = 10 nF. This low value minimizes voltage glitches on sampling capacitors, making it suitable for 16-bit SAR ADC front-ends without additional correction circuitry.
Can ADG408BRZ handle bipolar analog signals?
Yes, ADG408BRZ supports true bipolar analog signals from VSS to VDD. With ±15 V supplies, it passes signals from −15 V to +15 V without clipping or increased distortion. This enables direct interfacing with op-amps, strain gauges, and other bipolar-output sensors without level-shifting networks.
ADG408BRZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Active
- Switch Circuit:
- -
- Multiplexer/Demultiplexer Circuit:
- 8:1
- Number of Circuits:
- 1
- On-State Resistance (Max):
- 100Ohm
- Channel-to-Channel Matching (ΔRon):
- 15Ohm (Max)
- Voltage - Supply, Single (V+):
- 12V
- Voltage - Supply, Dual (V±):
- ±15V
- Switch Time (Ton, Toff) (Max):
- -
- -3db Bandwidth:
- -
- Charge Injection:
- 20pC
- Channel Capacitance (CS(off), CD(off)):
- 11pF, 40pF
- Current - Leakage (IS(off)) (Max):
- 500pA
- Crosstalk:
- -85dB @ 100kHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
ADG408BRZ FAQ
1.How can I place an order for ADG408BRZ through Aetrix?
Please submit a Request for Quotation (RFQ) for ADG408BRZ 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 ADG408BRZ reliable?
The price and inventory of ADG408BRZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADG408BRZ is usually 5 days.
3.What payment methods are accepted for ADG408BRZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADG408BRZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADG408BRZ?
ADG408BRZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADG408BRZ 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 ADG408BRZ?
For technical support, including ADG408BRZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADG408BRZ requirements.
6.How does Aetrix verify that ADG408BRZ is sourced from the original manufacturer or authorized distributors?
All ADG408BRZ 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 ADG408BRZ meets industry standards.
7.What is the process for return or replacement of ADG408BRZ?
All ADG408BRZ units undergo pre-shipment inspection (PSI). If there is an issue with ADG408BRZ, 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 ADG408BRZ part is unused and in its original packaging.
Return procedure for ADG408BRZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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