MCP3021

Features:

• 10-bit resolution
• ±1 LSB DNL, ±1 LSB INL max.
• 250 A max conversion current
• 5 nA typical standby current, 1 A max.
• I²C™ compatible serial interface
- 100 kHz I2C Standard mode
- 400 kHz I2C Fast mode
• Up to 8 devices on single 2-wire bus
• 22.3 ksps in I²C Fast mode
• Single-ended analog input channel
• On-chip sample and hold
• On-chip conversion clock
• Single supply specified operation: 2.7V to 5.5V
• Temperature range:
- Extended: -40°C to +125°C
• Small SOT-23 package

Application

• Data Logging
• Multi-zone Monitoring
• Hand Held Portable Applications
• Battery Powered Test Equipment
• Remote or Isolated Data Acquisition




Pinout






Specifications

Absolute Maximum Ratings †
V_DD...............................................................................7.0V
Analog input pin w.r.t. V_SS.................... -0.6V to V_DD +0.6V
SDA and SCL pins w.r.t. V_SS...................-0.6V to V_DD +1.0V
Storage temperature ..............................-65°C to +150°C
Ambient temp. with power applied ..........-65°C to +125°C
Maximum Junction Temperature ................................150°C
ESD protection on all pins (HBM) ............................... 4 kV

† 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 operational listings of this specification is not implied. Exposure to maximum rating conditions for extended periods may affect device reliability.

Parameter Name	Value
Max Sample Rate (ksamples/sec)	22
Max. INL ± (LSB)	1
Max. Supply Current (A)	250
Input Type	Single-ended
# of Input Channels	1
Resolution (bits)	10
Interface	I²C™
Temp Range (°C)	-40 to +125°C
Input Voltage Range (V)	2.7 to 5.5

Parameter NameValueMax Sample Rate (ksamples/sec)22Max. INL ± (LSB)1Max. Supply Current (A)250Input TypeSingle-ended # of Input Channels1Resolution (bits)10InterfaceI²C™Temp Range (°C)-40 to +125°CInput Voltage Range (V)2.7 to 5.5




Description

The Microchip Technology Inc. MCP3021 is a successive approximation A/D converter with 10-bit resolution. Available in the SOT-23 package, this device provides one, single-ended input with very low power consumption. Based on an advanced CMOS technology, the MCP3021 provides a low maximum conversion current and standby current of 250 A and 1 A respectively. Low current consumption combined with the small SOT-23 package make this device ideal for battery powered and remote data acquisition applications. Communication to the MCP3021 is performed using a 2-wire I²C?Compatible compatible interface. Standard (100 kHz) and Fast (400 kHz) I²C?Compatible modes are available with the device. An on-chip conversion clock enables independent timing for the I²C?Compatible clock and the conversion clock. The device is also addressable allowing up to eight devices on a single 2-wire bus. The MCP3021 runs on a single supply voltage that operates over a broad range of 2.7 V to 5.5 V. This device also provides excellent linearity of ±1 LSB differential non-linearity and ±1 LSB integral non-linearity. Operating temperature range for this device is -40°C to +125°C.