MCP3301_11 Datasheet, PDF (1/38 Pages) Microchip Technology – 13-Bit Differential Input, Low Power A/D Converter with SPI Serial Interface

MCP3301
13-Bit Differential Input, Low Power A/D Converter
with SPI Serial Interface
Features
• Full Differential Inputs
• ±1 LSB max DNL
• ±1 LSB max INL (MCP3301-B)
• ±2 LSB max INL (MCP3301-C)
• Single supply operation: 4.5V to 5.5V
• 100 ksps sampling rate with 5V supply voltage
• 50 nA typical standby current, 1 µA max
• 450 µA max active current at 5V
• Industrial temp range: -40°C to +85°C
• 8-pin MSOP, PDIP, and SOIC packages
• Mixed Signal PICtail™ Demo Board (P/N:
MXSIGDM) compatible
Applications
• Remote Sensors
• Battery-operated Systems
• Transducer Interface
Functional Block Diagram
V_REF
V_DD V_SS
IN+
Sample
& Hold
IN-
Circuits
CDAC
- ^Comparator
13-Bit SAR
+
General Description
The MCP3301 13-bit A/D converter features full
differential inputs and low power consumption in a
small package that is ideal for battery-powered
systems and remote data acquisition applications.
Incorporating a successive approximation architecture
with on-board sample and hold circuitry, the 13-bit A/D
converter is specified to have ±1 LSB Differential Non-
linearity (DNL) and ±1 LSB Integral Nonlinearity (INL)
for B-grade devices and ±2 LSB for C-grade devices.
The industry-standard SPI serial interface enables 13-
bit A/D converter capability to be added to any PIC^®
microcontroller.
The MCP3301 features a low current design that
permits operation with typical standby and active
currents of only 50 nA and 300 µA, respectively. The
device is capable of conversion rates of up to 100 ksps
with tested specifications over a 4.5V to 5.5V supply
range. The reference voltage can be varied from
400 mV to 5V, yielding input-referred resolution
between 98 µV and 1.22 mV.
The MCP3301 is available in 8-pin PDIP, 150 mil SOIC,
and MSOP packages. The full differential inputs of this
device enable a wide variety of signals to be used in
applications such as remote data acquisition, portable
instrumentation, and battery-operated applications.
Package Types
MSOP, PDIP, SOIC
V_REF 1
IN(+) 2
IN(-) 3
V_SS 4
8 V_DD
7 CLK
6 D_OUT
5 CS/SHDN
Control Logic
Shift
Register
CS/SHDN CLK
D_OUT
 2011 Microchip Technology Inc.
DS21700D-page 1