TL071 Low-Noise FET-Input Operational Amplifiers

The TL071H devices are the next-generation versions of the industry-standard devices. They provide outstanding value for cost-sensitive applications, with features including low offset (1 mV, typical), high slew rate (20 V/μs), and common-mode input to the positive supply. High ESD capacity of (1.5 kV, HBM), integrated EMI and RF filters, and operation across the full –40°C to 125°C enable the TL07xH devices to be used in the most rugged and demanding applications. This device comes in many different packages so it is necessary to choose the most appropriate one for your application.

 

TL071 Op-Amp Pinout Configuration

Pin Number	Pin Name	Pin Description
1	NC	Output of Op-Amp A
2	IN–	Inverting Input of Op-Amp A
3	IN+	Non Inverting Input of Op-Amp A
4	VCC-	Ground or Negative(Dual Polarity Supply)
5	NC	Non Inverting Input of Op-Amp B
6	OUT	Inverting Input of Op-Amp B
7	VCC+	Output of Op-Amp B
8	NC	Supply Voltage

 

Features & Specifications

• High slew rate: 20 V/μs (TL07xH, typ)
• Low offset voltage: 1 mV (TL07xH, typ)
• Low offset voltage drift: 2 μV/°C
• Low power consumption: 940 μA/ch (TL07xH, typ)
• Common-mode input voltage range includes VCC+
• Low input bias and offset currents
• Low noise: Vn = 18 nV/√Hz (typ) at f = 1 kHz
• Output short-circuit protection
• Low total harmonic distortion: 0.003% (typ)
• Wide supply voltage: ± 2.25 V to ± 20 V, and ± 4.5 V to ± 40 V 

 

Note: Complete technical details can be found in the TL071 datasheet, given at the end of this page.

 

TL071 Equivalent Op-Amp

TL072, Tl074, LM358, LM324, LM741C, LM709C, LM201, MC1439, and LM748

 

Where to use TL071 Op-Amp

The TL071 is a Single Package Operational Amplifier, meaning it has one Op-Amps inside it, this op-amp has many optional features that we will discuss later.

The main distinguishing feature of the TL071 Op-Amp is that they incorporate high-voltage bipolar transistors which help the transistor to have very high input impedance and low bias current. Also, this Op-Amp has low noise and harmonic distortion making it an ideal choice for audio pre-amplifiers. Other than that, these amplifiers may be used in applications such as high-speed integrators, fast D/A converters, sample and hold circuits, and many other circuits requiring low input offset voltage, low input bias current, high input impedance, high slew rate, and wide bandwidth. The devices also exhibit low noise and offset voltage drift.  So if you are looking for an Op-Amp IC with rugged features this IC is the most probable one to go with.

 

How to use TL071 Op-Amp

We can use this IC for audio pre-amplification, Weigh scales, ECG and medical instrumentation, and more, it can provide an edge in terms of sound quality because of its price compared to its specs. As a test, a non-inverting op-amp configuration is shown below,

In the above, the TL071 Op-amp is configured as a non-inverting configuration. The gain of the op-amp is set to 10. For that we have used a 1K resistor and a 9.1K resistor, as you can see for the simulation we have used a variable potentiometer be varying the potentiometer we can vary the input voltage and the output voltage will also vary, to power the op-amp we have used +12V and -12V supply, as the gain of the op-amp is 10 so if we provide 1V at the input we will get 10V at the output the simulated circuit shows exactly that.

 

Applications

• Solar energy: string and central Inverter
• Motor drives: AC and servo drive control and power stage modules
• Single-phase online UPS
• Three-phase UPS
• Pro audio mixers
• Battery test equipment

 

2D Model and Dimensions

If you are designing a PCB or Perf board with this component then the following picture from the TL071 Datasheet will be useful to know its package type and dimensions.