TL712CPSR Integrated Circuits (ICs)

Current - Input Bias (Max):	--
Base Part Number:	TL712
Supplier Device Package:	8-SO
Mounting Type:	Surface Mount
Package / Case:	8-SOIC (0.209", 5.30mm Width)
Operating Temperature:	0°C ~ 70°C
Hysteresis:	5mV
Propagation Delay (Max):	25ns
CMRR, PSRR (Typ):	--
Current - Quiescent (Max):	20mA
Current - Output (Typ):	--
Series:	--
Voltage - Input Offset (Max):	--
Voltage - Supply, Single/Dual (±):	4.75 V ~ 5.25 V
Output Type:	Complementary, Push-Pull, Tri-State, TTL
Number of Elements:	1
Type:	Differential
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Reel (TR)

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Linear - Comparators: TL712CPSR

Linear comparators are widely used in applications that require precise and reliable comparisons of input signals. The TL712CPSR is a monolithic integrated circuit (IC) intended to operate as a threshold level discriminator with a programmable threshold voltage. This IC operates with a single power supply and over an extended temperature range up to +105°C.

Features

The TL712CPSR features a main power supply voltage between 3V and 18V, with a working current draw of fewer than 10mA, and offers a minimum supply voltage of 4V that remains steady even at temperatures as high as 105°C. It also offers a rail-to-rail input operating range of ±20V, with a power supply rejection ratio (PSRR) of up to 80dB. Additionally, the TL712CPSR features two adjustable hysteresis levels for increased noise immunity, an integrated Schmitt Trigger that enables reliable operation on noisy signals, and has a 0.2% maximum drift over its full operating temperature range.

Application Fields

Because of its versatility and reliable operation, the TL712CPSR is an excellent choice for a variety of applications in temperature and velocity monitoring, medical equipment, electronic switching, and telecommunications. It can also be used in digital logic circuits, such as the design of analog to digital converters and limit switches, among others. Additionally, the IC is often used to monitor the precise level of input signals in data acquisition systems or as a voltage or temperature level discriminator.

Working Principle

The working principle behind the TL712CPSR is a comparator circuit with two adjustable hysteresis levels, used to compare input levels against a programmable threshold voltage. When the input voltage passes the low and high thresholds defined, the comparator output will change states to either +Vcc or -Vcc. The hysteresis levels are adjustable using an external DAC or an external amplifier, which helps to eliminate false triggering of the comparator output. The output is also capable of driving loads up to 200mA, enabling control of low and high side switches, such as MOSFETs and BJTs, respectively. Overall, the TL712CPSR is an excellent choice for applications requiring reliable analog comparisons, precision monitoring, and robust operation over an extended temperature range and wide input voltage range. It offers the convenience of a single power supply, rail-to-rail input, adjustable hysteresis levels, and the low power consumption necessary to carry out its functions in a variety of environments.

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