Product Summary
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 PCF8591 are transferred serially via the two-line bidirectional I2C-bus. The functions of the PCF8591 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.
Parametrics
PCF8591 absolute maximum ratings: (1)VDD, supply voltage (pin 16): -0.5 to +8.0 V; (2)VI, input voltage (any input): -0.5 to VDD + 0.5 V; (3)II, DC input current: ±10 mA; (4)IO, DC output current: ±20 mA; (5)IDD, ISS, VDD or VSS current: ±50 mA; (6)Ptot, total power dissipation per package: 300 mW; (7)PO, power dissipation per output: 100 mW; (8)Tamb, operating ambient temperature: -40 to +85℃; (9)Tstg, storage temperature: -65 to +150℃.
Features
PCF8591 features: (1)Single power supply; (2)Operating supply voltage 2.5 V to 6 V; (3)Low standby current; (4)Serial input/output via I2C-bus; (5)Address by 3 hardware address pins; (6)Sampling rate given by I2C-bus speed; (7)4 analog inputs programmable as single-ended or differential inputs; (8)Auto-incremented channel selection; (9)Analog voltage range from VSS to VDD; (10)On-chip track and hold circuit; (11)8-bit successive approximation A/D conversion; (12)Multiplying DAC with one analog output.
Diagrams
Image | Part No | Mfg | Description | Pricing (USD) |
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PCF8591 |
Other |
Data Sheet |
Negotiable |
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PCF8591P,112 |
NXP Semiconductors |
ADC (A/D Converters) ADC/DAC 8-BIT I2C |
Data Sheet |
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PCF8591T/2,512 |
NXP Semiconductors |
ADC (A/D Converters) ADC/DAC 8-BIT I2C |
Data Sheet |
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PCF8591T/2,518 |
NXP Semiconductors |
Audio A/D Converter ICs 8 BIT ADC/DAC I2C |
Data Sheet |
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