Part: MCP3204/3208 — Microchip Technology Inc.

Type: 12-Bit Analog-to-Digital Converter (ADC)

Description: The MCP3204/3208 are 2.7V 4-channel/8-channel 12-bit A/D converters with an SPI serial interface, on-chip sample and hold, and a maximum sampling rate of 100 ksps at 5V.

Operating Conditions:

• Supply voltage: 2.7V - 5.5V
• Operating temperature: -40°C to +85°C
• Max sampling rate: 100 ksps (at V DD = 5V), 50 ksps (at V DD = 2.7V)

Absolute Maximum Ratings:

• Max supply voltage: 7.0V
• Max junction/storage temperature: +150°C

Key Specs:

• Resolution: 12 bits
• Integral Nonlinearity (INL): ±1 LSB max (MCP3204/3208-B), ±2 LSB max (MCP3204/3208-C)
• Differential Nonlinearity (DNL): ±1 LSB max (No missing codes over-temperature)
• Operating Current: 400 μA max (V DD = V REF = 5V, D OUT unloaded)
• Standby Current: 2.0 μA max (CS = V DD = 5.0V)
• Clock Frequency: 2.0 MHz max (V DD = 5V), 1.0 MHz max (V DD = 2.7V)
• Reference Input Voltage Range: 0.25V to V DD

Features:

• 12-bit resolution
• ± 1 LSB max DNL
• 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)
• Low power CMOS technology: 500 nA typical standby current, 400 μA max. active current at 5V

Applications:

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

Package:

• 14-pin PDIP (MCP3204)
• 150 mil SOIC (MCP3204)
• TSSOP (MCP3204)
• 16-pin PDIP (MCP3208)
• SOIC (MCP3208)

• 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
• 100 ksps max. sampling rate at V DD = 5V
• 50 ksps max. sampling rate at V DD = 2.7V
• Low power CMOS technology:
• -500 nA typical standby current, 2 μA max.
• -400 μA max. active current at 5V
• Industrial temp range: -40°C to +85°C
• Available in PDIP, SOIC and TSSOP packages

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

MCP3208 Pinout – 16-pin PDIP

Notes

• MCP3208 has 8 analog input channels (CH0–CH7), distinguishing it from the MCP3204 which has only 4 channels (CH0–CH3).
• Pin numbers extracted directly from the MCP3208 column of Table 3-1 in the datasheet.
• CS/SHDN pin (10) functions as both chip select and shutdown control.
• VREF and VDD should be decoupled with appropriate bypass capacitors per device recommendations.

• 2: See graphs that relate linearity performance to V REF levels.

3: Because the sample cap will eventually lose charge, effective clock rates below 10 kHz can affect linearity performance, particularly at elevated temperatures. See Section 6.2 'Maintaining Minimum Clock Speed' , 'Maintaining Minimum Clock Speed', for more information.

†Notice: Stresses above those listed under "Maximum Ratings" may cause permanent damage to the device. This is a stress rating only and functional operation of the device at those or any other conditions above those indicated in the operation listings of this specification is not implied. Exposure to maximum rating conditions for extended periods may affect device reliability.

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