Design Files
Receive the full breakdown. See the product footprint and more in the eCad file.
- No Longer Manufactured
- PCF8591
8-Bit A/D and D/A Converter
- This page contains information on a product that is no longer manufactured (discontinued). Specifications and information herein are available for historical reference only.
The PCF8591 is a single-chip, single-supply low-power 8-bit CMOS data acquisition device with four analog inputs, one analog output and a serial I²C-bus interface. Three address pins A0, A1 and A2 are used for programming the hardware address, allowing the use of up to eight devices connected to the I²C-bus without additional hardware. Address, control and data to and from the device are transferred serially via the two-line bidirectional I²C-bus.
The functions of the device include analog input multiplexing, on-chip track and hold function, 8-bit analog-to-digital conversion and an 8-bit digital-to-analog conversion. The maximum conversion rate is given by the maximum speed of the I²C-bus.
Product Details
Features
System Features
- Single power supply
- Operating supply voltage 2.5 V to 6.0 V
- Low standby current
- Serial input/output via I²C-bus
- I²C address selection by 3 hardware address pins
- Max sampling rate given by I²C-bus speed
- 4 analog inputs configurable as single ended or differential inputs
- Auto-incremented channel selection
- Analog voltage range from VSS to VDD
- On-chip track and hold circuit
- 8-bit successive approximation analog-to-digital conversion
- Multiplying DAC with one analog output.
- Supply monitoring
- Reference setting
- Analog control loops
Part numbers include: PCF8591T.
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Documentation
Quick reference to our documentation types.
1-5 of 12 documents
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Data Sheet
8-bit A/D and D/A converter
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Application Note
AN96022
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Application Note
AN96007
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User Guide
I2C-bus specification and user manual
