MCP3304-CI/SL Microchip Technology, MCP3304-CI/SL Datasheet - Page 23

• Manufacturer Part Number: MCP3304-CI/SL
• Description: IC ADC 13BIT 2.7V 4CH SPI 16SOIC
• Manufacturer: Microchip Technology

Specifications of MCP3304-CI/SL

• Package / Case: 16-SOIC (0.154", 3.90mm Width)
• Number Of Bits: 13
• Sampling Rate (per Second): 100k
• Data Interface: Serial, SPI™
• Number Of Converters: 1
• Voltage Supply Source: Single Supply
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Architecture: SAR
• Conversion Rate: 100 KSPs
• Resolution: 12 bit
• Input Type: Voltage
• Snr: 80.02 dB
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: MCP3304CI/SL

5.7
The MCP3302/04 devices provide both digital and
analog ground connections to provide another means
of noise reduction. As shown in
and digital circuitry are separated internal to the device.
This reduces noise from the digital portion of the device
being coupled into the analog portion of the device. The
two grounds are connected internally through the
substrate which has a resistance of 5 -10 Ω.
If no ground plane is utilized, then both grounds must
be connected to V
available, both digital and analog ground pins should
be connected to the analog ground plane. If both an
analog and a digital ground plane are available, both
the digital and the analog ground pins should be
connected to the analog ground plane, as shown in
Figure
amount of digital noise from the rest of the board being
coupled into the A/D Converter.
FIGURE 5-11:
Digital Ground Pins.MCP3302/04.
© 2008 Microchip Technology Inc.
5-11. Following these steps will reduce the
-SPI Interface
-Shift Register
-Control Logic
Utilizing the Digital and Analog
Ground Pins
Digital Side
DGND
Analog Ground Plane
SS
MCP3302/04
V
Substrate
on the board. If a ground plane is
5 - 10Ω
DD
Separation of Analog and
AGND
-Sample Cap
-Capacitor Array
-Comparator
Figure
Analog Side
5-11, the analog
0.1 µF
MCP3302/04
DS21697E-page 23