MCP3901A0T-E/ML Microchip Technology, MCP3901A0T-E/ML Datasheet - Page 15

• Manufacturer Part Number: MCP3901A0T-E/ML
• Description: IC AFE 24BIT 64KSPS 2CH 20QFN
• Manufacturer: Microchip Technology
• Series: -r

Specifications of MCP3901A0T-E/ML

• Number Of Bits: 24
• Number Of Channels: 2
• Power (watts): -
• Voltage - Supply, Analog: 4.5 V ~ 5.5 V
• Voltage - Supply, Digital: 2.7 V ~ 5.5 V
• Package / Case: 20-VFQFN Exposed Pad
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

3.0
The descriptions of the pins are listed in
TABLE 3-1:
3.1
This pin is active low and places the entire chip in a
Reset state when active.
When RESET = 0, all registers are reset to their default
value, no communication can take place and no clock
is distributed inside the part. This state is equivalent to
a POR state.
Since the default state of the ADCs is on, the analog
power consumption when RESET = 0 is equivalent to
when RESET = 1. Only the digital power consumption
is largely reduced because this current consumption is
essentially dynamic and is reduced drastically when
there is no clock running.
All the analog biases are enabled during a Reset so
that the part is fully operational just after a RESET
rising edge.
This input is Schmitt triggered.
© 2011 Microchip Technology Inc.
REFIN+/OUT
OSC1/CLKI
Symbol
RESET
REFIN-
MDAT1
MDAT0
OSC2
CH0+
CH1+
DV
A
D
AV
CH0-
CH1-
SDO
SCK
SDI
DR
CS
EP
GND
GND
DD
DD
PIN DESCRIPTION
RESET
PIN FUNCTION TABLE
SSOP
10
11
12
13
14
15
16
17
18
19
20
—
1
2
3
4
5
6
7
8
9
Pin No.
QFN
18
19
20
10
12
13
14
15
16
17
21
11
1
2
3
4
5
7
8
9
6
Table
Master Reset Logic Input Pin
Digital Power Supply Pin
Analog Power Supply Pin
Non-Inverting Analog Input Pin for Channel 0
Inverting Analog Input Pin for Channel 0
Inverting Analog Input Pin for Channel 1
Non-Inverting Analog Input Pin for Channel 1
Analog Ground Pin, Return Path for Internal Analog Circuitry
Non-Inverting Voltage Reference Input and Internal Reference Output Pin
Inverting Voltage Reference Input Pin
Digital Ground Pin, Return Path for Internal Digital Circuitry
Modulator Data Output Pin for Channel 1
Modulator Data Output Pin for Channel 0
Data Ready Signal Output Pin
Oscillator Crystal Connection Pin or External Clock Input Pin
Oscillator Crystal Connection Pin
Serial Interface Chip Select Pin
Serial Interface Clock Pin
Serial Interface Data Output Pin
Serial Interface Data Input Pin
Exposed Thermal Pad. Must be connected to AGND.
3-1.
3.2
DV
within the MCP3901. This pin requires appropriate
bypass capacitors and should be maintained between
2.7V and 5.5V for specified operation.
3.3
AV
within the MCP3901.
This pin requires appropriate bypass capacitors and
should be maintained to 5V ±10% for specified
operation.
DD
DD
is the power supply pin for the analog circuitry
is the power supply pin for the digital circuitry
Digital V
Analog V
Function
DD
DD
(DV
(AV
DD
DD
MCP3901
)
)
DS22192D-page 15