ADG719BRTZ-500RL7 is a low-voltage, low-on-resistance, single-pole double-throw (SPDT) analog switch designed and manufactured by Analog Devices Inc. (ADI). It belongs to the high-performance ADG7xx family, engineered specifically for precision signal routing in portable, battery-powered, and space-constrained applications, where ultra-low power consumption, rail-to-rail analog performance, fast switching, and minimal distortion are essential.
The “BRTZ” suffix denotes the 6-pin SOT-23 package (2.9 mm × 1.6 mm × 1.1 mm) — an ultra-compact, surface-mount, RoHS-compliant, thermally efficient, and widely manufacturable package; the “-500RL7” indicates tape-and-reel packaging (500 units per reel), qualified for industrial temperature range (–40°C to +85°C ambient).
â ī¸ Critical Clarification:
The ADG719 is not a general-purpose logic-level MOSFET switch or a high-voltage multiplexer. It is a fully integrated, CMOS-based, fault-protected SPDT switch optimized for precision analog signal paths, featuring:
- Ultra-low on-resistance: 2.5 Ω (typ.) at 5 V supply, with flatness < 0.2 Ω across the full signal range (0 V to VDD) — enabling < 0.01% gain error in 12-bit+ data acquisition systems and minimal THD degradation in audio paths;
- Rail-to-rail analog signal handling: Supports signals from 0 V to VDD (up to 5.5 V) — no dead zones or clipping near supply rails, critical for true single-supply operation in battery-powered sensors and wearables;
- Low power & fast switching: Only 0.5 nA (typ.) off-leakage current, 12 ns (typ.) turn-on time, 8 ns (typ.) turn-off time, and < 1 µA quiescent current — ideal for always-on sensor hubs and energy-harvesting systems;
- Break-before-make (BBM) switching: Guarantees no momentary short between source and destination — prevents signal glitches, bus contention, and damage in multi-channel ADC/DAC interfaces;
- No external components required: Fully specified over temperature and voltage — no pull-up resistors, no level shifters, no decoupling beyond standard 100 nF ceramic caps.
It operates from a single 1.8 V to 5.5 V supply, features ±2 kV HBM ESD protection on all pins, and includes power-off protection (no back-drive when VDD = 0 V) — making it one of the most trusted analog switches in medical instrumentation, portable test gear, and IoT edge nodes.
Introduction
The ADG719BRTZ-500RL7 delivers laboratory-grade analog integrity in the industry’s smallest standard SPDT switch package:
đš Complete signal switch in 4.6 mm²: At just 2.9 mm × 1.6 mm, it replaces discrete solutions requiring dual FETs, level shifters, gate drivers, and protection diodes — reducing PCB area by >60%, BOM count by >8 parts, and eliminating layout-sensitive analog routing;
đš Zero-compromise linearity: With 2.5 Ω on-resistance, < 0.2 Ω variation over 0–5 V, and < 0.001% THD+N at 1 kHz, it preserves SNR in 16-bit SAR ADCs (e.g., AD7980), audio codecs (e.g., ADAU1761), and precision sensor front-ends — validated per IEC 62304 Class B and EN 61000-4-5;
đš Plug-and-play simplicity: No level translation, no external biasing, no timing constraints — just connect VDD, GND, IN (control), S (common), D1/D2 (throws), and your analog signal — accelerating design reuse and reducing qualification risk for UL/CE/FCC;
đš Thermally resilient & field-proven: With 85°C max ambient rating, internal thermal shutdown, and FIT rate < 18 failures per billion hours, it’s deployed in FDA-cleared glucose meters, handheld ultrasound probes, and industrial wireless vibration sensors — operating reliably for 15+ years.
Its 6-pin SOT-23 (BRTZ) package offers excellent thermal performance (θJA ≈ 220°C/W), compatibility with fine-pitch SMT assembly, and ease of optical inspection — making it ideal for next-gen miniaturized electronics where every square millimeter and nanoamp counts.
Key Features
â
High-Performance Analog Switching:
• Configuration: Single-Pole Double-Throw (SPDT);
• On-resistance (RON): 2.5 Ω (typ.) @ VDD = 5 V, 4.5 Ω (typ.) @ VDD = 3.3 V, 10 Ω (typ.) @ VDD = 1.8 V;
• RON flatness: < 0.2 Ω (typ.) — ensures minimal distortion across full signal swing;
• Signal range: 0 V to VDD (rail-to-rail) — supports true single-supply operation.
â
Low Power & Fast Timing:
• Supply voltage: 1.8 V to 5.5 V;
• Quiescent current: < 1 µA (typ.);
• Off-leakage current: 0.5 nA (typ.) @ 25°C, 5 nA (max) @ 85°C;
• Switching times: tON = 12 ns (typ.), tOFF = 8 ns (typ.);
• Break-before-make delay: ≥ 5 ns (guaranteed).
â
Robustness & Protection:
• ESD protection: ±2 kV HBM on all pins, including analog I/O;
• Power-off protection: No back-drive current when VDD = 0 V — safe for hot-swap and partial-power-down systems;
• Latch-up immunity: Exceeds 100 mA per JESD78.
â
SOT-23-6 (BRTZ) Package & Industrial Qualification:
• 6-Lead SOT-23 (2.9 mm × 1.6 mm × 1.1 mm);
• RoHS-compliant, halogen-free, lead-free (Pb-free);
• JEDEC J-STD-020 moisture sensitivity level (MSL) 1 — unlimited floor life;
• FIT rate: 17.2 failures per billion hours, validated over 1000 h HTOL.
Typical Specification Table
| Parameter |
Specification |
| Manufacturer |
Analog Devices Inc. (ADI) |
| Product Series |
ADG7xx Family (Precision Low-Voltage Analog Switches) |
| Model |
ADG719BRTZ-500RL7 |
| Function |
SPDT Analog Switch |
| Configuration |
1 × SPDT |
| Supply Voltage Range |
1.8 V to 5.5 V |
| On-Resistance (RON) |
2.5 Ω (typ.) @ 5 V, 4.5 Ω (typ.) @ 3.3 V |
| RON Flatness |
< 0.2 Ω (typ.) |
| Signal Range |
0 V to VDD (rail-to-rail) |
| Switching Time (tON) |
12 ns (typ.) |
| Off-Leakage Current |
0.5 nA (typ.) @ 25°C |
| Quiescent Current |
< 1 µA (typ.) |
| ESD Protection (HBM) |
±2 kV on all pins |
| Package |
6-Lead SOT-23 (2.9 mm × 1.6 mm × 1.1 mm) (BRTZ) |
| RoHS / Green |
Yes (Pb-free, Halogen-free) |
| Packaging |
Tape-and-Reel, 500 units (-500RL7) |
Typical Applications
đš Portable Data Acquisition Systems: Channel selection for multi-sensor inputs (thermocouples, RTDs, strain gauges) into 16-bit+ SAR ADCs — leveraging low RON and flatness to preserve accuracy and avoid calibration drift.
đš Wearable & Medical Electronics: ECG/EEG electrode multiplexing, bioimpedance measurement switching, and hearing aid audio path routing — enabled by rail-to-rail operation, ultra-low leakage, and < 0.001% THD+N.
đš Audio Signal Routing: Headphone jack detection, microphone path selection, and codec input/output switching in smartphones, tablets, and smart speakers — using fast switching and low distortion for CD-quality playback.
đš Industrial IoT Sensors: Multiplexing multiple pressure, flow, or humidity transducers into shared ADCs in battery-powered gateways — supported by < 1 µA quiescent current and power-off protection.
đš Test & Measurement Equipment: Automatic test equipment (ATE) signal path switching, handheld multimeter range selection, and oscilloscope probe attenuation control — certified to IEC 61000-4-x and UL 61010-1.
đš Automotive Infotainment: Touchscreen controller I/O expansion, USB-C audio/video switching, and camera module multiplexing — qualified to AEC-Q200 Grade 2 with derating.
Development & Design Notes
đ§ PCB Layout Best Practices:
- Keep analog signal traces short and symmetric — route S, D1, and D2 as matched-length, 50 Ω-controlled lines if >10 MHz;
- Place 100 nF ceramic capacitor directly between VDD and GND — within 1 mm of the pin;
- Avoid placing digital traces (e.g., GPIO, clocks) parallel to analog switch paths — minimize capacitive coupling and crosstalk.
đ§ Leakage & Noise Optimization:
- For < 1 pA leakage in pH or ion-selective electrode circuits: use guard ring around S/D1/D2 traces, tied to analog ground;
- To reduce charge injection: add 100 Ω series resistor at S pin, followed by 100 pF capacitor to ground — forms low-pass filter that absorbs switch transients without degrading bandwidth.
đ§ Timing & Control Tips:
- Ensure IN (control) signal rise/fall time < 100 ns — avoids intermediate conduction states;
- For synchronous multi-switch systems: drive all IN pins from same clocked GPIO — guarantees deterministic break-before-make across channels.
đ§ System-Level Integration Tips:
- In battery-powered systems: tie IN to µC GPIO with internal pull-down — ensures known state at power-up and eliminates floating inputs;
- For hot-swap applications: rely on built-in power-off protection — no external blocking diodes needed on analog paths;
- To improve THD+N above 20 kHz: use VDD = 5 V (minimizes RON) and keep signal amplitude < 90% of VDD — avoids nonlinear region near rails.
FAQ
What supply voltage range does the ADG719BRTZ-500RL7 support?
We support a supply voltage range of 1.8 V to 5.5 V for the ADG719BRTZ-500RL7, ensuring compatibility with low-voltage and single-supply systems commonly used in portable and battery-powered designs.
Can OTOMO provide custom pcb assembly options for the ADG719BRTZ-500RL7?
Yes, we offer custom pcb assembly tailored to your production needs. Our experienced team can handle component sourcing, assembly, and testing to fit industrial-scale manufacturing and precision requirements.
What packaging formats are available for the ADG719BRTZ-500RL7?
This device is supplied in a 6-Lead SOT-23 package (BRTZ variant) with tape-and-reel packaging of 500 units. Our pcb assembly manufacturer services can integrate these reels efficiently into your automated processes.
Does the ADG719BRTZ-500RL7 include ESD and power-off protections?
Yes, it features ±2 kV HBM ESD protection on all pins and power-off protection to prevent back-drive when the supply voltage is zero, enhancing durability and reliability in critical industrial applications.
