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SF-7 Current Sensor

SF-7 Current Sensor

The SF-7 is based on the Texas Instruments INA138 High-Side Measurement Current Shunt Monitor. It has a maximum input voltage of 36V and is designed to measure currents between 10mA and 500mA. It uses a 0.1-ohm sense resistor and has a transimpedance gain of 4V/A. An antialiasing filter of 15.4khz is placed after a unity gain buffer that feeds a Texas Instruments ADC121C027 12-bit analog to digital converter. There is one jumper that allows the user to select between three addresses. The ADC reference is connected to VDD so the resolution is based on the voltage applied to the device. It communicates using a 2-wire interface compatible with I2CTM which supports Standard (100kHz), Fast (400kHz), and High Speed (3.4MHz) Modes. It has an out of range alert flag readable as part of the conversion register.
When purchased, additional information will be emailed to you including a Bill of Materials, pdf Schematic, board and Microchip datasheets, Altium schematic, Altium schematic and PCB libraries.

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SF-6 Pressure Sensor

SF-6 Pressure Sensor

The SF-6 is based on the Fujikura AP4 200KPa (29PSI) 13bit pressure sensor.  This device currently has a supply voltage requirement of 3.3V.  Other voltages (3.0V and 5.0V) are available. If your needs require one of these voltage levels please inquire for a quote. ...

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SF-5 Digital to Analog Converter

SF-5 Digital to Analog Converter

The SF-5 is based on Microchips MCP4725 12-Bit Digital-to-Analog Converter with EEPROM Memory.  It has 12-bit resolution and accepts supply voltages between 2.7V and 5.5V.  It communicates using a 2-wire interface compatible with I2CTM. It comes with one jumper to...

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SF-4 Analog to Digital Converter

SF-4 Analog to Digital Converter

The SF-4 is based on the Texas Instruments Ultra-Small, Low-Power, I2C-Compatible, 3.3-kSPS, 12-Bit ADC.  It has 12-bit resolution and accepts a supply voltage of 2.0V to 5.5V.  It uses 150µA during continuous conversion mode. Sample rate is 128 SPS to 3300 SPS. It...

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SF-3 Port Expander

SF-3 Port Expander

The SF-3 is based on the Maxim I2C Port Expander with 8 Push-Pull and 8 Open-Drain I/O’s.  It has 2 Ports.  Port 1 is an Open-Drain configuration that can be used as either inputs or outputs with a 20mA sink current. Port 2 is a Push-Pull output port.  There are 4...

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SF-2 Humidity Sensor

SF-2 Humidity Sensor

The SF-2 is based on the Texas Instruments High Accuracy Digital Humidity Sensor with Temperature Sensor, the HDC1010.  It has a Relative Humidity Accuracy ±2% (typical) and a Temperature Accuracy ±0.2°C (typical) with 14-bit measurement resolution. Sleep mode current...

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SF-1 Temperature Sensor

SF-1 Temperature Sensor

The SF-1 is based on the Microchip TCN75 2-Wire Serial Temperature Sensor. It has a resolution of ±1°C from -40°C to +125°C.  The resolution can be set, by the user, to one of 4 selections from 0.5°C to 0.0625°C.  The input voltage can be between 2.7V and 5.5V.  It communicates using a 2-wire interface compatible with I2CTM.  There are three jumpers that allow the user to select the sensor communication address. Typical power consumption is 200 µA.

When purchased, additional information will be emailed to you including a Bill of Materials, pdf Schematic, board and Microchip datasheets, Altium schematic, Altium schematic and PCB libraries.

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JTAG Interface Board 1

JTAG Interface Board 1

The JTAG Interface board 1 (IB-1), is an adapter board that allows you to connect the Atmel AVR JTAG-ICE programmer to a Tag-Connect in-circuit debug cable (TC2050-IDC- NL). The Tag-connect cable is a great cable that allows JTAG connections in a compact space on your...

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