Overview
The PCF8591P,112, produced by NXP USA Inc., is a single-chip, single-supply low-power 8-bit CMOS data acquisition device. It features four analog inputs, one analog output, and a serial I²C-bus interface. This device is designed for low-power applications and supports a wide range of analog input and output operations. The PCF8591 is versatile, allowing for multiple device connections on the same I²C-bus without additional hardware, thanks to its three address pins (A0, A1, and A2) for hardware address programming.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Supply Voltage (VDD) | 2.5 | 6.0 | V | ||
| Supply Current (IDD) | Standby; VI = VSS or VDD; no load | - | 1 | 15 | μA |
| Operating; fSCL = 100 kHz, AOUT off | - | 125 | 250 | μA | |
| Operating; fSCL = 100 kHz, AOUT active | - | 0.45 | 1.0 | mA | |
| Power-On Reset Voltage (VPOR) | 0.8 | 2.0 | V | ||
| Ambient Temperature (Tamb) | -40 | 85 | °C | ||
| Storage Temperature (Tstg) | -65 | 150 | °C |
Key Features
- Four analog inputs configurable as single-ended or differential inputs
- One analog output
- Built-in 8-bit Analog-to-Digital Converter (ADC) and 8-bit Digital-to-Analog Converter (DAC)
- Integrated control unit
- Programmable gain amplifier
- Single power supply operation
- Low standby current
- Serial input and output via I²C-bus
- I²C address selection by three hardware address pins (A0, A1, A2)
- Auto-incremented channel selection
- On-chip track and hold circuit
Applications
- Supply monitoring
- Reference setting
- Analog control loops
Q & A
- What is the PCF8591P,112? The PCF8591P,112 is a single-chip, single-supply low-power 8-bit CMOS data acquisition device produced by NXP USA Inc.
- How many analog inputs and outputs does the PCF8591P,112 have? It has four analog inputs and one analog output.
- What type of interface does the PCF8591P,112 use? It uses a serial I²C-bus interface.
- What is the operating supply voltage range of the PCF8591P,112? The operating supply voltage range is from 2.5 V to 6.0 V.
- How many devices can be connected to the I²C-bus without additional hardware? Up to eight devices can be connected using the three address pins (A0, A1, A2).
- What are the key features of the PCF8591P,112? Key features include built-in ADC and DAC, integrated control unit, programmable gain amplifier, single power supply operation, and low standby current.
- What are some common applications of the PCF8591P,112? Common applications include supply monitoring, reference setting, and analog control loops.
- What is the maximum sampling rate of the PCF8591P,112? The maximum sampling rate is given by the maximum speed of the I²C-bus.
- Does the PCF8591P,112 have an on-chip track and hold circuit? Yes, it has an on-chip track and hold circuit.
- What is the ambient temperature operating range of the PCF8591P,112? The ambient temperature operating range is from -40°C to +85°C.
