MCP3208

Features:

• 12-bit resolution
• ± 1 LSB max DNL
• ± 1 LSB max INL (MCP3204/3208-B)
• ± 2 LSB max INL (MCP3204/3208-C)
• 4 (MCP3204) or 8 (MCP3208) input channels
• Analog inputs programmable as single-ended or pseudo differential pairs
• On-chip sample and hold
• SPI® serial interface (modes 0,0 and 1,1)
• Single supply operation: 2.7V - 5.5V
• 100ksps max. sampling rate at V_DD = 5V
• 50ksps max. sampling rate at V_DD = 2.7V
• Low power CMOS technology
- 500 nA typical standby current, 2µA max.
- 400 µA max. active current at 5V
• Industrial temp range: -40 to +85
• Available in PDIP, SOIC and TSSOP packages




Application

• Sensor Interface
• Process Control
• Data Acquisition
• Battery Operated Systems




Pinout

Specifications

Parameter Name	Value
Max Sample Rate (ksamples/sec)	100
Max. INL ± (LSB)	1
Max. Supply Current (A)	400
Input Type	Single-ended
# of Input Channels	8
Resolution (bits)	12
Interface	SPI
Temp Range (°C)	-40 to +85°C
Input Voltage Range (V)	2.7 to 5.5

Parameter NameValueMax Sample Rate (ksamples/sec)100Max. INL ± (LSB)1Max. Supply Current (A)400Input TypeSingle-ended # of Input Channels8Resolution (bits)12InterfaceSPITemp Range (°C)-40 to +85°CInput Voltage Range (V)2.7 to 5.5

V_DD.........................................................................7.0V
All inputs and outputs w.r.t. V_SS ...... -0.6V to V_DD +0.6V
Storage temperature ..........................-65 to +150
Ambient temp. with power applied......-65 to +125
Soldering temperature of leads (10 seconds) ..+300
ESD protection on all pins...................................> 4kV

Description

The MCP3208 12-bit Analog-to-Digital Converter (ADC) combines high performance and low power consumption in a small package, making it ideal for embedded control applications. The MCP3208 features a successive approximation register (SAR) architecture and an industry-standard SPI? serial interface, allowing 12-bit ADC capability to be added to any PICmicro? microcontroller. The MCP3208 features 100k samples/second, 8 input channels, low power consumption (5nA typical standby, 400 A max.active), and is available in 16-pin PDIP and SOIC packages. Applications for the MCP3208 include data acquisition, instrumentation and measurement, multi-channel data loggers, industrial PCs, motor control, robotics, industrial automation, smart sensors, portable instrumentation and home medical appliances.

The Microchip Technology Inc. MCP3204/3208 devices are successive approximation 12-bit Analog- to-Digital (A/D) Converters with on-board sample and hold circuitry. The MCP3204 is programmable to provide two pseudo-differential input pairs or four single- ended inputs. The MCP3208 is programmable to provide four pseudo-differential input pairs or eight single- ended inputs. Differential Nonlinearity (DNL) is specified at ±1 LSB, and Integral Nonlinearity (INL) is offered in ±1 LSB (MCP3204/3208-B) and ±2 LSB (MCP3204/3208-C) versions. Communication with the devices is done using a simple serial interface compatible with the SPI protocol. The devices are capable of conversion rates of up to 100ksps. The MCP3204/3208 devices operate over a broad voltage range (2.7V - 5.5V). Low current design permits operation with typical standby and active currents of only 500nA and 320µA, respectively. The MCP3204 is offered in 14-pin PDIP, 150mil SOIC and TSSOP packages, and the MCP3208 is offered in 16-pin PDIP and SOIC packages.