Overview
The AD8426ACPZ-R7, produced by Analog Devices Inc., is a dual-channel, low-cost instrumentation amplifier known for its wide supply range and versatility. This device is designed to operate with a variety of signal voltages and is particularly suited for applications where space is limited and high performance is required. The AD8426 features a small 4 mm × 4 mm Lead Frame Chip Scale Package (LFCSP) with no metal pad, providing more routing room and eliminating current leakage to the pad. It is ideal for industrial process controls, medical instrumentation, and other multichannel systems.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Gain Range | 1 | - | 1000 | V/V |
| Power Supply Range (Single) | 2.2 | - | 36 | V |
| Power Supply Range (Dual) | ±1.35 | - | ±18 | V |
| Bandwidth (G = 1) | 1 | - | - | MHz |
| CMRR (G = 1) | 80 | - | - | dB |
| Input Noise | - | 24 | - | nV/√Hz |
| Supply Current (per amp) | - | 350 | - | μA |
| Operating Temperature Range | -40 | - | 125 | °C |
| Package Type | - | - | - | 16-Lead LFCSP (4mm x 4mm x 0.85mm) |
Key Features
- 2 channels in a small 4 mm × 4 mm LFCSP package with no metal pad, providing more routing room and no current leakage to the pad.
- Gain set with 1 external resistor; gain range from 1 to 1000.
- Input voltage can go below ground; inputs protected beyond supplies.
- Very wide power supply range: single supply from 2.2 V to 36 V and dual supply from ±1.35 V to ±18 V.
- Bandwidth of 1 MHz at G = 1; CMRR of 80 dB minimum at G = 1.
- Input noise of 24 nV/√Hz; typical supply current of 350 μA per amplifier.
- Specified temperature range from -40°C to +125°C.
- Robust inputs designed to connect to real-world sensors, capable of handling voltages beyond the rails.
Applications
- Industrial process controls.
- Bridge amplifiers.
- Medical instrumentation.
- Portable data acquisition.
- Multichannel systems.
Q & A
- What is the gain range of the AD8426? The gain range of the AD8426 is from 1 to 1000, set using a single external resistor.
- What are the power supply options for the AD8426? The AD8426 can operate on a single supply from 2.2 V to 36 V or a dual supply from ±1.35 V to ±18 V.
- What is the bandwidth of the AD8426 at a gain of 1? The bandwidth of the AD8426 at a gain of 1 is 1 MHz.
- What is the CMRR of the AD8426 at a gain of 1? The CMRR of the AD8426 at a gain of 1 is 80 dB minimum.
- How much input noise does the AD8426 have? The AD8426 has an input noise of 24 nV/√Hz.
- What is the typical supply current per amplifier for the AD8426? The typical supply current per amplifier for the AD8426 is 350 μA.
- What is the operating temperature range of the AD8426? The operating temperature range of the AD8426 is from -40°C to +125°C.
- What type of package does the AD8426 come in? The AD8426 comes in a 16-Lead Lead Frame Chip Scale Package (LFCSP) with dimensions of 4 mm × 4 mm × 0.85 mm.
- Can the AD8426 handle input voltages beyond the supply rails? Yes, the AD8426 can handle input voltages beyond the supply rails; for example, it can withstand ±35 V at the input with a ±5 V supply.
- What are some common applications of the AD8426? Common applications include industrial process controls, medical instrumentation, portable data acquisition, and multichannel systems.
