Overview
The TLE2064CDR is a quad, low-power JFET-input operational amplifier produced by Texas Instruments. This device is part of the TLE206x series, which is known for doubling the bandwidth of earlier generation TL06x and TL03x BiFET families without significantly increasing power consumption. The TLE2064CDR features the Texas Instruments Excalibur process, which delivers a lower noise floor compared to its predecessors. It is designed to offer high input impedance, high output drive, and improved DC performance, making it suitable for a variety of applications requiring low power and high ac characteristics.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package | SOIC (D) | - |
| Pins | 14 | - |
| Operating Temperature Range | 0 to 70 | °C |
| Bandwidth | 2 MHz | - |
| Supply Current per Channel | 290 µA | - |
| Output Drive Capability | Specified into 100-Ω loads | - |
| Voltage Supply Range | ±5 V to ±15 V | - |
Key Features
- 2× bandwidth of the TL06x and TL03x operational amplifiers
- Low supply current: 290 µA per channel (typical)
- On-chip offset voltage trimming for improved DC performance
- High output drive, specified into 100-Ω loads
- Lower noise floor than earlier generations of low-power BiFETs
- Pin-compatible with other TI BiFETs, allowing for easy upgrade or replacement in existing circuits
- Inherently higher input impedance due to JFET-input transistors, suitable for high-impedance sensors or low-level AC signals
Applications
The TLE2064CDR is well-suited for various applications that require low power consumption and high AC characteristics. Some of the key applications include:
- Driving transformer loads in modems and other communication devices
- Interfacing with high-impedance sensors
- Low-power audio and signal processing circuits
- DC-coupled applications requiring precision grades
- Single-supply systems, with the use of a virtual ground generator like the Texas Instruments TLE2426
Q & A
- What is the bandwidth of the TLE2064CDR operational amplifier?
The bandwidth of the TLE2064CDR is 2 MHz.
- What is the typical supply current per channel for the TLE2064CDR?
The typical supply current per channel is 290 µA.
- What is the output drive capability of the TLE2064CDR?
The TLE2064CDR is capable of driving 100-Ω loads at supplies as low as ±5 V.
- What is the operating temperature range for the TLE2064CDR?
The operating temperature range is from 0°C to 70°C.
- Is the TLE2064CDR pin-compatible with other TI BiFET operational amplifiers?
Yes, the TLE2064CDR is pin-compatible with other TI BiFETs, such as the TL06x and TL03x families.
- What are the benefits of using JFET-input transistors in the TLE2064CDR?
The JFET-input transistors provide inherently higher input impedance, which is beneficial for interfacing with high-impedance sensors or very low-level AC signals.
- Can the TLE2064CDR be used in single-supply systems?
Yes, but it requires careful consideration of common-mode input voltage limits and output swing. A virtual ground generator like the TLE2426 can be useful in such configurations.
- What are some recommended alternatives for low-voltage and/or single-supply systems?
For low-voltage and/or single-supply systems, Texas Instruments recommends using LinCMOS families of operational amplifiers (TLC- and TLV-prefixes), such as the TLV2432 and TLV2442.
- What is the package type and pin count of the TLE2064CDR?
The TLE2064CDR comes in a 14-pin SOIC (D) package.
- How does the TLE2064CDR compare to earlier BiFET operational amplifiers in terms of noise floor?
The TLE2064CDR has a lower noise floor compared to earlier generations of low-power BiFETs.
