Unipolar-to-Bipolar Level Translator 0V to 5V Unipolar to ±10V Bipolar Converter

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.

Features

• Power Supply ±15V DC (Dual 15V DC)
• Input 0 to 5V
• Output ±10V (Dual 10V)
• Bandwidth 50Khz
• PCB Dimensions 26.19 x 13.34mm

Connections

• CN1: Pin 1 +15V DC, Pin 2 = GND, Pin 3 = -15V DC, Pin 4 = 0 to 5V Signal, Pin 5 = GND
• CN2: Pin 1 = Output ±10V (Dual 10V)
• D1: Power LED

Schematic

Parts List

Connections

Gerber View

Photos

Video

REF5050 Datasheet

OPA2206 Datasheet

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