Diodes Incorporated Launches Low Voltage Operational Amplifiers for Mobile Devices and Photodiode Sensing Applications
The AS348 and AS2348 amplifiers from Diodes Incorporated stand out in the market as single-/dual-channel rail-to-rail input and output (RRIO) models, boasting an operating supply voltage range of 1.6 V to 5.5 V. Their rail-to-rail input/output functionality, combined with a wide supply voltage range, renders these amplifiers exceptionally versatile, not only perfect for battery-powered devices but also for the conventional 3.3 V and 5 V systems.
Ensuring cost-efficiency and timely delivery, Diodes Incorporated's authorized distributor BonChip supplies these original products at competitive prices with guaranteed quality. This advantageous offering ensures that clients have access to high-quality components that are readily available when they need them.
Moreover, the AS348/AS2348 amplifiers exhibit excellent power management with a remarkably low supply current of merely 70 µA per channel, which is ideal for applications where low voltage and portability are necessary.
These devices are further ideal for precision applications, as evidenced by their incredibly low 1 pA bias current, making them great for integrators, photodiode amplifiers, and piezoelectric sensors. The amplifiers also feature a minimal input offset voltage of 0.5 mV (typical) and exhibit unity-gain stability with a capacitive load up to 100 pF, coupled with a gain-bandwidth (GBW) of 1.0 MHz._20231221193335A588.jpg)
The diverse packaging options for the AS348 and AS2348 ensure compatibility with a broad array of applications: the AS348 is obtainable in the standard SOT25 package, while the AS2348 is available in standard MSOP-8 and SO-8 packages, catering to different assembly needs. Both models are designed to withstand a wide ambient temperature range of -40ºC to +125ºC, making them well-suited for rigorous environments.
Key features
- Wide 1.6 V to 5.5 V Supply Voltage Range
- Supports a wide range of supply rails (2-NiMH cells, 1-Li-Ion cell, 3.3 V and 5 V rails)
- Rail-to-Rail Input and Output
- Supports analog front ends (AFE) that are ground and supply referenced, as well as providing maximum output swings
- Low 1 pA Input Bias Current
- Ensures minimal DC error when used in impedance signal conditioning circuits
- Low 70 µA Supply Current per Amplifier
- Provides good bandwidth over power ratio with 1MHz unity-gain stability for most analog sensors
- Robust ESD Capability (HBM: 4kV)
- Improves system reliability
Key applications
- Active filters
- Sensor interfaces
- Photodiode amplifiers
- Smoke alarms, CO detectors
- Battery-powered devices
- Portable equipment
- Medical instruments
- Pulse blood oximeters
