MCP3302_08 Datasheet, PDF (1/46 Pages) Microchip Technology – 13-Bit Differential Input, Low Power A/D Converter with SPI Serial Interface

MCP3302/04
13-Bit Differential Input, Low Power A/D Converter
with SPI Serial Interface
Features
• Full Differential Inputs
• 2 Differential or 4 Single ended Inputs (MCP3302)
• 4 Differential or 8 Single ended Inputs (MCP3304)
• ±1 LSB maximum DNL
• ±1 LSB maximum INL (MCP3302/04-B)
• ±2 LSB maximum INL (MCP3302/04-C)
• Single supply operation: 2.7V to 5.5V
• 100 ksps sampling rate with 5V supply voltage
• 50 ksps sampling rate with 2.7V supply voltage
• 50 nA typical standby current, 1 µA maximum
• 450 µA maximum active current at 5V
• Industrial Temperature Range:
- -40°C to +85°C
• 14 and 16-pin PDIP, SOIC, and TSSOP packages
Applications
• Remote Sensors
• Battery Operated Systems
• Transducer Interface
General Description
The Microchip Technology Inc. MCP3302/04 13-bit A/D
converters feature full differential inputs and low-power
consumption in a small package that is ideal for battery
powered systems and remote data acquisition
applications. The MCP3302 is programmable to
provide two differential input pairs or four single ended
inputs. The MCP3304 is programmable and provides
four differential input pairs or eight single ended inputs.
Incorporating a successive approximation architecture
with on-board sample and hold circuitry, these 13-bit
A/D converters are specified to have ±1 LSB
Differential Nonlinearity (DNL); ±1 LSB Integral
Nonlinearity (INL) for B-grade 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 MCP3302/04 devices feature low current design
that permits operation with typical standby and active
currents of only 50 nA and 300 µA, respectively. The
devices operate over a broad voltage range of 2.7V to
5.5V and are capable of conversion rates of up to
100 ksps. The reference voltage can be varied from
400 mV to 5V, yielding input-referred resolution
between 98 µV and 1.22 mV.
The MCP3302 is available in 14-pin PDIP, 150 mil
SOIC and TSSOP packages. The MCP3304 is
available in 16-pin PDIP and 150 mil SOIC packages.
The full differential inputs of these devices enable a
wide variety of signals to be used in applications such
as remote data acquisition, portable instrumentation,
and battery operated applications.
Package Types
PDIP, SOIC, TSSOP
CH0 1
CH1 2
CH2 3
CH3 4
NC 5
NC 6
DGND 7
14 V_DD
13 V_REF
12 AGND
11 CLK
10 D_OUT
9 D_IN
8 CS/SHDN
PDIP, SOIC
CH0 1
CH1 2
CH2 3
CH3 4
CH4 5
CH5 6
CH6 7
CH7 8
16 V_DD
15 V_REF
14 AGND
13 CLK
12 D_OUT
11 D_IN
10 _CS/SHDN
9 DGND
© 2008 Microchip Technology Inc.
DS21697E-page 1