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Analog Devices Inc. ADG426BRS-REEL7
- Part No.:
- ADG426BRS-REEL7
- Manufacturer:
- Analog Devices Inc.
- Package:
- 28-SSOP (0.209", 5.30mm Width)
- Datasheet:
-
ADG426BRS-REEL7.pdf
- Description:
- IC MUX 16:1 80OHM 28SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,047
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Product details
Overview
ADG426BRS-REEL7 from Analog Devices is a 16-channel CMOS analog multiplexer with on-chip address and control latches for microprocessor interfacing, 80 Ω maximum on-resistance, ±15 V dual-supply or +12 V single-supply operation, and break-before-make switching action. It routes one of sixteen analog inputs to a common drain in industrial data acquisition and automated test equipment.
For engineers reviewing the ADG426BRS-REEL7 datasheet, ADG426BRS-REEL7 pinout, ADG426BRS-REEL7 application, or ADG426BRS-REEL7 equivalent, key selection criteria include latch-enabled digital interface timing (tW ≥ 100 ns), rail-to-rail analog signal range (VSS to VDD), low charge injection (5 pC typ), and SSOP-28 package compatibility with high-density PCB layouts.
Technical Context
The ADG426BRS-REEL7 implements a 4-bit address decoder with transparent latches enabled by WR (write) and reset by RS (reset), supporting synchronous microprocessor bus interfacing without external glue logic. Its enhanced LC2MOS process enables full rail-to-rail analog conduction and low leakage (±1 nA max at +25°C).
It features level-sensitive latches that respond to address/enable inputs while WR is low and capture state on the rising edge of WR. The RS input clears all latches to zero when asserted low, ensuring deterministic power-up or fault-recovery behavior independent of prior address state.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Analog Signal Range | VSS to VDD (±15 V dual or 0–12 V single): supports unipolar/bipolar signals across full supply rails |
| RON (max) | 125 Ω at −40°C to +85°C, VDD = +13.5 V/VSS = −13.5 V: ensures minimal signal attenuation in precision measurement paths |
| tON / tOFF | 160 ns / 150 ns max (dual supply): enables ≤6 MHz channel switching in high-speed data acquisition |
| Leakage (max) | ±20 nA off-state (−40°C to +85°C): preserves accuracy in high-impedance sensor front-ends |
| Charge Injection | 5 pC typ (single supply, VS = 6 V): limits transient glitch amplitude in sample-hold circuits |
| Off Isolation | −75 dB typ at 100 kHz: suppresses crosstalk between inactive channels in multi-signal routing |
| Supply Voltage Range | ±15 V dual or +5 V to +12 V single: allows flexible system-level power architecture design |
Pinout & Package
ADG426BRS-REEL7 uses a 28-lead Shrink Small Outline Package (SSOP, RS-28) with 0.65 mm pitch, 10.2 mm × 5.3 mm body, and exposed thermal pad (JEDEC MO-150-AH). Pin 1 identifier located at top-left corner.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Most positive supply | Connects to +12 V (single) or +15 V (dual); powers internal logic and switch driver stages |
| VSS | Most negative supply | Connects to ground (single) or −15 V (dual); defines lower analog rail and logic reference |
| GND | Ground reference | 0 V return path for digital I/O and substrate bias; must be low-impedance for noise immunity |
| D | Common drain terminal | Single bidirectional analog output node shared across all 16 switched channels |
| S1–S16 | Source terminals | 16 bidirectional analog I/O pins; each connects to D when selected, high-impedance when off |
| A0–A3 | Address inputs | 4-bit binary latch inputs determining active channel (0–15); sampled on WR rising edge |
| EN | Enable control | Active-high global enable; disables all switches when low, regardless of address state |
| WR | Write strobe | Rising-edge-triggered latch clock; captures A0–A3 and EN states into internal registers |
| RS | Reset input | Active-low asynchronous clear; forces all latches to zero and opens all switches immediately |
Key Features
| Feature | Design Value |
|---|---|
| On-chip address latches | Eliminates need for external address锁存器 in µP-based systems; supports direct bus connection |
| Rail-to-rail analog range | Enables seamless handling of bipolar signals (e.g., ±10 V sensor outputs) without level-shifting circuitry |
| Break-before-make switching | Prevents momentary shorting during channel transitions-critical for avoiding signal corruption in multiplexed ADC inputs |
| Low charge injection (5 pC) | Minimizes voltage step on hold capacitors, reducing settling time and error in precision sample-and-hold stages |
| Single-supply compatibility | Operates from +5 V to +12 V with full functionality, simplifying power design in battery-powered instrumentation |
Applications
| Audio Routing | Data Acquisition |
|---|---|
Use Scenario: Switching multiple microphone or line-level audio sources to a single codec or amplifier input in professional audio mixers. IC Role / Device Role / Timing Role: 16:1 analog multiplexer with low THD and rail-to-rail swing, controlled via µP address bus with WR/RS synchronization. Use Value: Enables dynamic source selection without analog switching artifacts; 80 Ω RON ensures minimal gain error across channels. | Use Scenario: Multiplexing 16 sensor outputs (e.g., thermocouples, strain gauges) into a single high-resolution ADC in industrial PLC modules. IC Role / Device Role / Timing Role: Precision analog switch with <±20 nA leakage and 5 pC charge injection, synchronized to µP read cycle via WR strobe. Use Value: Maintains measurement integrity across channels; break-before-make prevents cross-talk-induced offset errors during scanning. |
| Automatic Test Equipment | Battery-Powered Instrumentation |
Use Scenario: Routing DUT signals to various stimulus and measurement resources (e.g., SMUs, digitizers) in semiconductor ATE platforms. IC Role / Device Role / Timing Role: High-speed 16-channel switch with 160 ns tON and latch interface, enabling deterministic channel selection within tight test cycle budgets. Use Value: Supports >6 MHz scan rates; ±15 V rating accommodates wide-range test signals without external protection. | Use Scenario: Selecting between multiple battery cells or sensor banks in portable multimeters or handheld analyzers. IC Role / Device Role / Timing Role: Low-power analog MUX operating from +5 V supply, with 1 μA typical IDD in disabled state and latch-controlled addressing. Use Value: Extends battery life via ultra-low standby current; SSOP-28 footprint minimizes board area in space-constrained enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADG426BNZ | Same die, 28-lead PDIP package (N-28-2); no thermal pad; higher θJA (75°C/W vs. 122°C/W) | Through-hole mounting; less suitable for high-density or thermally constrained PCBs | Select ADG426BNZ only for prototyping or legacy through-hole designs where reflow compatibility is not required. |
| ADG426BRSZ | RoHS-compliant version of same SSOP-28 package; identical electrical specs and timing | Required for environmentally regulated end markets (EU, China RoHS); no performance trade-off | Choose ADG426BRSZ for new production where lead-free compliance is mandatory; pin- and footprint-compatible. |
Compared with ADG426BNZ, ADG426BRS-REEL7 offers superior thermal performance and surface-mount scalability; compared with ADG426BRSZ, it lacks RoHS certification but may be preferred in cost-sensitive non-regulated applications where leaded solder is used.
Availability
ADG426BRS-REEL7 is available at Aetrix Electronics and suitable for industrial data acquisition systems, automated test equipment, and battery-powered instrumentation requiring stable component supply, long-term lifecycle support, and tape-and-reel delivery for SMT assembly.
Supply support for ADG426BRS-REEL7 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, headquartered in Norwood, MA.
The ADG426BRS-REEL7 belongs to the LC2MOS analog switch family, engineered for precision signal routing in demanding industrial, test, and instrumentation applications where rail-to-rail operation, low leakage, and microprocessor compatibility are essential.
FAQ
What is the maximum supply voltage rating for ADG426BRS-REEL7?
The ADG426BRS-REEL7 has an absolute maximum VDD to VSS rating of 44 V. It operates over dual supplies up to ±15 V (30 V total) or single supplies from +5 V to +12 V. Exceeding ±15 V or +12 V risks permanent damage per the Absolute Maximum Ratings table.
Does ADG426BRS-REEL7 support single-supply operation with a 5 V rail?
Yes, ADG426BRS-REEL7 remains fully functional with a +5 V single supply (VDD = +5 V, VSS = 0 V), though RON increases to 200 Ω max and switching times lengthen. All logic thresholds (VINH = 2.4 V min, VINL = 0.8 V max) and latch timing (tW ≥ 100 ns) remain valid at this voltage.
How does the WR pin function in ADG426BRS-REEL7?
The WR pin is a rising-edge-triggered write strobe. While WR is low, the internal address and enable latches are transparent; on the rising edge, the current states of A0–A3 and EN are captured and held, selecting the corresponding channel. This enables synchronous µP bus interfacing without external clock generation.
What is the purpose of the RS pin on ADG426BRS-REEL7?
The RS pin is an active-low asynchronous reset. When pulled low, it immediately clears all internal address and enable latches to zero, forcing all 16 switches open regardless of prior state. This provides deterministic fault recovery and power-on initialization without relying on WR timing or address sequencing.
Can ADG426BRS-REEL7 be used in audio signal routing applications?
Yes, ADG426BRS-REEL7 is qualified for audio routing due to its low on-resistance (80 Ω max), low charge injection (5 pC typ), and rail-to-rail analog range. Its break-before-make action prevents audible clicks during source switching, and −75 dB off-isolation at 100 kHz suppresses inter-channel crosstalk in multi-input mixer designs.
ADG426BRS-REEL7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Switch Circuit:
- -
- Multiplexer/Demultiplexer Circuit:
- 16:1
- Number of Circuits:
- 1
- On-State Resistance (Max):
- 80Ohm
- Channel-to-Channel Matching (ΔRon):
- 4Ohm
- Voltage - Supply, Single (V+):
- 12V
- Voltage - Supply, Dual (V±):
- ±15V
- Switch Time (Ton, Toff) (Max):
- 160ns, 150ns
- -3db Bandwidth:
- -
- Charge Injection:
- 8pC
- Channel Capacitance (CS(off), CD(off)):
- 5pF, 50pF
- Current - Leakage (IS(off)) (Max):
- 500pA
- Crosstalk:
- -85dB @ 1MHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 28-SSOP
ADG426BRS-REEL7 FAQ
1.How can I place an order for ADG426BRS-REEL7 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADG426BRS-REEL7 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 ADG426BRS-REEL7 reliable?
The price and inventory of ADG426BRS-REEL7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADG426BRS-REEL7 is usually 5 days.
3.What payment methods are accepted for ADG426BRS-REEL7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADG426BRS-REEL7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADG426BRS-REEL7?
ADG426BRS-REEL7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADG426BRS-REEL7 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 ADG426BRS-REEL7?
For technical support, including ADG426BRS-REEL7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADG426BRS-REEL7 requirements.
6.How does Aetrix verify that ADG426BRS-REEL7 is sourced from the original manufacturer or authorized distributors?
All ADG426BRS-REEL7 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 ADG426BRS-REEL7 meets industry standards.
7.What is the process for return or replacement of ADG426BRS-REEL7?
All ADG426BRS-REEL7 units undergo pre-shipment inspection (PSI). If there is an issue with ADG426BRS-REEL7, 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 ADG426BRS-REEL7 part is unused and in its original packaging.
Return procedure for ADG426BRS-REEL7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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