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

  • Rajkumar Sharma
  • 32 Views
  • easy
  • Tested
  • SKU: EL148605
  • Quote Now

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

NOQNTYREFDESCMANUFACTURERSUPPLIERSUPPLIER PART NO
11CN15 PIN MALE HEADER PITCH 2.54MMWURTHDIGIKEY732-5318-ND
21CN22 PIN MALE HEADER PITCH 2.54MMWURTHDIGIKEY732-5315-ND
31C1DNP
41C233PF/50V CERAMIC SMD SIZE 0805YAGEO/MURATADIGIKEY
51C31uF/25V CERAMIC SMD SIZE 0805YAGEO/MURATADIGIKEY
62C4,C610uF/25V CERAMIC SMD SIZE 0805YAGEO/MURATADIGIKEY
72C5,C7100nF/50V CERAMIC SMD SIZE 0805YAGEO/MURATADIGIKEY
81D1LED RED SMD SIZE 0805OSRAMDIGIKEY475-1278-1-ND
91R12K 5% SMD SIZE 0805YAGEO/MURATADIGIKEY
102R2,R80E SMD SIZE 0805YAGEO/MURATADIGIKEY
111R3418E 1% SMD SIZE 0805YAGEO/MURATADIGIKEY
121R424K 1% SMD SIZE 0805YAGEO/MURATADIGIKEY
131R52.4K 1% SMD SIZE 0805YAGEO/MURATADIGIKEY
141R6100K 1% SMD SIZE 0805YAGEO/MURATADIGIKEY
151R7715E 1% SMD SIZE 0805YAGEO/MURATADIGIKEY
161U1OPA2206 VSSOP8TIDIGIKEY296-OPA2206ADGKRCT-ND
171U2REF5050 VSSOP8TIDIGIKEY296-46325-1-ND

Connections

Gerber View

Photos

Video

REF5050 Datasheet

OPA2206 Datasheet

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