Overview
The TLV2170IDR, produced by Texas Instruments, is part of the TLVx170 family of operational amplifiers. These devices are designed for cost-sensitive systems and offer a range of features that make them suitable for various general-purpose applications. The TLV2170IDR is a dual-channel, single-supply operational amplifier that operates over a wide voltage range from 2.7 V to 36 V (or ±1.35 V to ±18 V). It is known for its low noise, high common-mode rejection ratio (CMRR), and power-supply rejection ratio (PSRR), making it ideal for microvolt-level signal amplification.
The device is EMI-hardened with RFI-filtered inputs, ensuring robust performance in noisy environments. It features a low quiescent current of 125 µA per amplifier, low input bias current, and high gain bandwidth of 1.2 MHz. The TLV2170IDR is available in several package options, including SOIC and VSSOP, making it versatile for different design requirements.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Supply Voltage Range | 2.7 | 36 | V | |
| Input Offset Voltage (VOS) | 0.5 | ±2.5 | ±2.7 | mV |
| Input Offset Voltage Drift (dVOS/dT) | ±2 | µV/°C | ||
| Input Bias Current (IB) | ±10 | ±1 nA | pA | |
| Power-Supply Rejection Ratio (PSRR) | 90 | 105 | dB | |
| Gain Bandwidth Product | 1.2 | MHz | ||
| Slew Rate | 0.4 | V/μs | ||
| Quiescent Current per Amplifier (IQ) | 125 | 175 | µA | |
| Output Voltage Swing | (V–) + 0.2 | (V+) – 0.3 | V | |
| Operating Temperature Range | –40 | +125 | °C |
Key Features
- Wide supply voltage range: 2.7 V to 36 V (or ±1.35 V to ±18 V)
- Low noise: 22 nV/√Hz input voltage noise density
- EMI-hardened with RFI-filtered inputs
- Input range includes the negative supply rail
- Unity-gain stable with a 200-pF capacitive load
- Rail-to-rail output
- High common-mode rejection ratio (CMRR): 110 dB
- Low input bias current: 10 pA (typical)
- Low quiescent current: 125 µA per amplifier
- High gain bandwidth product: 1.2 MHz
- Slew rate: 0.4 V/μs
- Phase-reversal protection
Applications
- Currency counters
- AC-DC converters
- Tracking amplifiers in power modules
- Server power supplies
- Inverters
- Test equipment
- Battery-powered instruments
- Transducer amplifiers
- Line drivers or line receivers
Q & A
- What is the supply voltage range of the TLV2170IDR?
The TLV2170IDR operates over a supply voltage range from 2.7 V to 36 V (or ±1.35 V to ±18 V).
- What is the input voltage noise density of the TLV2170IDR?
The input voltage noise density is 22 nV/√Hz.
- Is the TLV2170IDR EMI-hardened?
Yes, the TLV2170IDR is EMI-hardened with RFI-filtered inputs.
- What is the quiescent current per amplifier for the TLV2170IDR?
The quiescent current per amplifier is 125 µA.
- What is the gain bandwidth product of the TLV2170IDR?
The gain bandwidth product is 1.2 MHz.
- Is the TLV2170IDR unity-gain stable?
Yes, the TLV2170IDR is unity-gain stable with a 200-pF capacitive load.
- What is the common-mode rejection ratio (CMRR) of the TLV2170IDR?
The CMRR is 110 dB.
- What are some typical applications of the TLV2170IDR?
Typical applications include currency counters, AC-DC converters, tracking amplifiers in power modules, server power supplies, inverters, test equipment, battery-powered instruments, transducer amplifiers, and line drivers or line receivers.
- What is the operating temperature range of the TLV2170IDR?
The operating temperature range is from –40°C to +125°C.
- Does the TLV2170IDR have phase-reversal protection?
Yes, the TLV2170IDR has internal phase-reversal protection.
