PCF8591

General description

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.

Features

• Single power supply
• Operating supply voltage 2.5 V to 6 V
• Low standby current
• Serial input/output via I²C-bus
• Address by 3 hardware address pins
• Sampling rate given by I²C-bus speed
• 4 analog inputs programmable as single-ended or differential inputs
• Auto-incremented channel selection
• Analog voltage range from V_SS to V_DD
• On-chip track and hold circuit
• 8-bit successive approximation A/D conversion
• Multiplying DAC with one analog output.

Products/packages

Pricing/ordering/availability

Applications

• Closed loop control systems
• Low power converter for remote data acquisition
• Battery operated equipment
• Acquisition of analog values in automotive, audio and TV applications.

Related applications
LCD display - discretes focus
PDA - discretes focus
Motherboard components
50-60 Hz CRT integrated DTV (TV210D)
Mid-range integrated DTV (TV810)
Intelligent washing machine

Block diagrams/pinning

Technical documents

Application Notes

AN10441_1; Level shifting techniques in I²C-bus design (20-Jun-07)

AN96007_1; P83CE258 for High-End RDS/EON Car Radio System CCR520S V2.5 (01-Feb-96)

AN96022_1; High-End RDS/EON Car Radio System CCR520S (V2.6) (15-Mar-96)

Support Documents

IC12_97_ASS_I2C_ADDR_1; Assigned I 2 C-bus addresses General (1997-03-01)

75015669; Continuous innovation. Timeless lifespan. (01-Sep-06)

75013239; I 2 C Logic Selection Guide (2005-01-12)

IC12_97_I2C_ALLOCATION; I²C-bus allocation table General (1997-03-01)

75011212; I2C 2002-1A Evaluation Board Kit (01-Mar-03)

75012744; I2C Bus Solutions 2004 (2004-02-01)

UM10206_1; I2C Demonstration Board 2005-1 Quick Start Guide (13-Jun-06)

philips_i2c_handbook; I2C Handbook (2004-01-01)

UM10204_3; I2C-bus specification and user manual (26-Jun-07)

75007416; LCD drivers linecard (2001-11-23)

75015685; NXP Fast-mode Plus 8-bit A/D and D/A converter (2006-11-01)

75014395; Your connection to I 2 C,UART,CAN,and USB Connecting with Philips Wired Connectivity (2005-04-01)

Parametrics/similar products

Similar products

PCF8591 links to the similar products page containing an overview of products that are similar in function or related to the type number(s) as listed on this page. The similar products page includes products from the same catalog tree(s), relevant selection guides and products from the same functional category.

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