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This design is intended to translate a small unipolar signal to a wide bipolar signal. A common application is to translate a 0 to 5V DAC output to a ±10V bipolar signal. All resistors are 1% but it is advisable to select 0.1% 20 ppm/°C resistors for good gain, offset accuracy, and drift tolerance. A calibration at room temperature can be done to minimize the gain error, but gain drift can only be reduced by minimizing the resistor drift (choosing resistors with TC ≤ 20 ppm/°C). The project is built using OPA2206 Precision, bipolar, e‑trim OPAMP. REF5050 provides 5V reference voltage to OPAMP. The board works with a dual ±15V DC Power Supply.
This design is intended to translate a small unipolar signal to a wide bipolar signal. A common application is to translate a 0 to 5V DAC output to a ±10V bipolar signal. All resistors are 1% but it is advisable to select 0.1% 20 ppm/°C resistors for good gain, offset accuracy, and drift tolerance. A calibration at room temperature can be done to minimize the gain error, but gain drift can only be reduced by minimizing the resistor drift (choosing resistors with TC ≤ 20 ppm/°C). The project is built using OPA2206 Precision, bipolar, e‑trim OPAMP. REF5050 provides 5V reference voltage to OPAMP. The board works with a dual ±15V DC Power Supply.
Module is a dual 12-bit PWM-to-voltage output DAC with high accuracy. The board is based on the LTC2644 chip. The LTC2644 measures the period and pulse width of the PWM input signals and updates the voltage output DACs after each corresponding PWM input rising edge. The DAC outputs update and settle to 12-bit accuracy within 8μs typically and are capable of sourcing and sinking up to 5mA (3V) or 10mA (5V), eliminating voltage ripple and replacing slow analog filters and buffer amplifiers. The circuit has a full-scale output of 2.5V using the 10ppm/°C internal reference. It can operate with an external reference, which sets the full-scale output equal to the external reference voltage. Each DAC enters a pin-selectable idle state when the PWM input is held unchanged for more than 60ms. The project operates from a single 2.7V to 5.5V supply and supports PWM input voltages from 1.71V to 5.5V. The PWM frequency can be any frequency between 30Hz and 6. 25kHz. The input level can be between 1.71V and 5.5V, set by a separate IOVCC pin. This project solves many problems associated with filtering a PWM signal to produce an analog voltage, producing a fast-settling, accurate analog voltage in response to a digital PWM input.
This is a two Channel high-side switch designed for automotive applications. It has a built-in overcurrent limit function, thermal shutdown protection function, open load detection function, low power output-OFF function etc. It also has a current sensing function of output load current.
The LT1079 draws very little supply current while still delivering low offset voltage and low noise. This makes the module well-suited to battery-powered instrumentation and sensor front-ends where both precision and low power draw matter.
This is a versatile PWM generator module built around the TL494 PWM control chip. The flexible design allows for multiple component configurations to support various applications. Users can customize the module by installing only the components required for their specific application while leaving out unnecessary components.
This is a low-cost video distribution amplifier capable of driving up to four video lines. The amplifier is configured with a non-inverting gain of 2. The input video source is terminated in 75 Ohms and is applied to the high impedance non-inverting input. Each output line is connected to the op-amp’s output via 75 Ohms series back termination resistor for proper cable termination. The termination resistor at the other end of the lines divides the output signal by 2, which is compensated by the gain of 2 of the op-amp. The project is built using AD8010 op-amp which is optimized for this specific function of providing excellent video performance in driving multiple video loads in parallel. Significant power is saved and heat sinking is greatly simplified because of the ability of the AD8010 to obtain this performance when running on ±5 V supply. Circuit provides 46dB of output-to-output isolation at 5Mhz driving back terminated 75 Ohms cable. Ferrite beads and high-value ceramic capacitors are used on the power supply input to reduce the noise.
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