Overview
The OPA2348AIDCNR is a dual-channel, low-power operational amplifier produced by Texas Instruments. It is part of the OPAx348 series, which includes single-supply, low-power, CMOS operational amplifiers. This amplifier is designed for applications requiring low power consumption and high performance on single supplies ranging from 2.1 V to 5.5 V. The OPA2348AIDCNR features an extended bandwidth of 1 MHz and a low quiescent current of 45 µA per channel, making it suitable for a variety of low-power applications, including those involving high-impedance sensors such as smoke detectors.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Number of Channels | 2 | |
| Bandwidth (Typical) | 1 | MHz |
| Quiescent Current per Channel (Typical) | 45 | µA |
| Input Bias Current (Maximum) | 10 | pA |
| Common Mode Rejection Ratio (Typical) | 82 | dB |
| Slew Rate (Typical) | 0.5 | V/µs |
| Output Current (Typical) | 10 | mA |
| Offset Voltage at 25°C (Maximum) | 5 | mV |
| Operating Temperature Range | -40 to 125 | °C |
| Supply Voltage Range | 2.1 to 5.5 | V |
| Package Type | SOT-23 (DCN) | |
| Number of Pins | 8 |
Key Features
- Low quiescent current: 45 µA per channel (typical)
- Rail-to-Rail Input and Output
- Single supply operation: 2.1 V to 5.5 V
- Low input bias current: 0.5 pA (typical)
- Extended bandwidth: 1 MHz
- Excellent bandwidth-to-power consumption trade-off
- Available in micro-size packages: 8-pin SOT-23
- Extended temperature range: -40°C to 125°C
Applications
- Low-power applications
- High-impedance sensors (e.g., smoke detectors)
- Driving medium-speed sampling analog-to-digital converters (ADCs)
- Space-limited designs requiring miniature packages
- Single-supply voltage systems where negative supply voltages are not available
Q & A
- What is the typical quiescent current of the OPA2348AIDCNR?
The typical quiescent current is 45 µA per channel.
- What is the bandwidth of the OPA2348AIDCNR?
The bandwidth is 1 MHz.
- What is the input bias current of the OPA2348AIDCNR?
The input bias current is 0.5 pA (typical).
- What is the operating temperature range of the OPA2348AIDCNR?
The operating temperature range is -40°C to 125°C.
- What is the supply voltage range for the OPA2348AIDCNR?
The supply voltage range is 2.1 V to 5.5 V.
- What package types are available for the OPA2348?
The OPA2348 is available in 8-pin SOT-23 and 8-pin SOIC packages.
- Is the OPA2348AIDCNR suitable for high-impedance sensors?
Yes, it is suitable for high-impedance sensors such as smoke detectors.
- Can the OPA2348AIDCNR drive analog-to-digital converters (ADCs)?
Yes, it is optimized for driving medium-speed sampling ADCs.
- What is the common mode rejection ratio (CMRR) of the OPA2348AIDCNR?
The CMRR is 82 dB (typical).
- Is the OPA2348AIDCNR RoHS compliant?
Yes, the OPA2348AIDCNR is RoHS compliant.
