Техническая Спецификация для Microchip Technology MCP3901EV-MCU16
© 2011 Microchip Technology Inc.
DS22192D-page 3
MCP3901
1.0
ELECTRICAL
CHARACTERISTICS
CHARACTERISTICS
Absolute Maximum Ratings †
V
DD
...................................................................................7.0V
Digital inputs and outputs w.r.t. A
GND
........ -0.6V to V
DD
+0.6V
Analog input w.r.t. A
GND
..................................... ....-6V to +6V
V
REF
input w.r.t. A
GND
............................... -0.6V to V
DD
+0.6V
Storage temperature .....................................-65°C to +150°C
Ambient temp. with power applied ................-65°C to +125°C
Soldering temperature of leads (10 seconds) ............. +300°C
ESD on the analog inputs (HBM,MM) ................. 7.0 kV, 400V
ESD on all other pins (HBM,MM) ........................ 7.0 kV, 400V
Ambient temp. with power applied ................-65°C to +125°C
Soldering temperature of leads (10 seconds) ............. +300°C
ESD on the analog inputs (HBM,MM) ................. 7.0 kV, 400V
ESD on all other pins (HBM,MM) ........................ 7.0 kV, 400V
† Notice: Stresses above those listed under “Absolute
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 indi-
cated in the operational listings of this specification, is not
implied. Exposure to maximum rating conditions for extended
periods may affect device reliability.
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 indi-
cated in the operational listings of this specification, is not
implied. Exposure to maximum rating conditions for extended
periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
Electrical Specifications: Unless otherwise indicated, AV
DD
= 4.5 to 5.5V, DV
DD
= 2.7 to 5.5V; -40°C < T
A
< +85°C,
MCLK = 4 MHz; PRESCALE = 1; OSR = 64; GAIN = 1; Dithering OFF; V
IN
= -0.5 dBFS = 333 mV
RMS
@ 50/60 Hz
Parameters
Symbol
Min
Typical
Max
Units
Conditions
Internal Voltage Reference
Internal Voltage Reference
Tolerance
Tolerance
V
REF
-2%
2.37
+2%
V
VREFEXT = 0
Temperature Coefficient
TC
REF
—
12
—
ppm/°C
VREFEXT = 0
Output Impedance
ZOUT
REF
—
7
—
k
Ω
AV
DD
= 5V,
VREFEXT = 0
Voltage Reference Input
Input Capacitance
—
—
10
pF
Differential Input Voltage Range
(V
(V
REF+
– V
REF-
)
V
REF
2.2
—
2.6
V
V
REF
= (V
REF+
– V
REF-
),
VREFEXT = 1
Absolute Voltage on REFIN+ Pin
V
REF+
1.9
—
2.9
V
VREFEXT = 1
Absolute Voltage on REFIN- Pin
V
REF-
-0.3
—
0.3
V
ADC Performance
Resolution (No Missing Codes)
24
—
—
bits
Sampling Frequency
f
S
See
kHz
f
S
= DMCLK = MCLK/
(4 x PRESCALE)
Note 1:
This specification implies that the ADC output is valid over this entire differential range and that there is no
distortion or instability across this input range. Dynamic performance is specified at -0.5 dB below the
maximum signal range, V
distortion or instability across this input range. Dynamic performance is specified at -0.5 dB below the
maximum signal range, V
IN
= -0.5 dBFS @ 50/60 Hz = 353 mV
RMS,
V
REF
= 2.4V.
2:
See terminology section for definition.
3:
This parameter is established by characterization and not 100% tested.
4:
For these operating currents, the following bit settings apply: SHUTDOWN<1:0> = 00, RESET<1:0> = 00,
VREFEXT = 0, CLKEXT = 0.
VREFEXT = 0, CLKEXT = 0.
5:
For these operating currents, the following Configuration bit settings apply: SHUTDOWN<1:0> = 11,
VREFEXT = 1, CLKEXT = 1.
VREFEXT = 1, CLKEXT = 1.
6:
for typical values).
7:
Outside of this range, the ADC accuracy is not specified. An extended input range of ±6V can be applied
continuously to the part with no risk for damage.
continuously to the part with no risk for damage.
8:
For proper operation and to keep ADC accuracy, AMCLK should always be in the range of 1 to 5 MHz with
BOOST bits off. With BOOST bits on, AMCLK should be in the range of 1 to 8.192 MHz,
AMCLK = MCLK/PRESCALE. When using a crystal, the CLKEXT bit should be equal to ‘0’.
BOOST bits off. With BOOST bits on, AMCLK should be in the range of 1 to 8.192 MHz,
AMCLK = MCLK/PRESCALE. When using a crystal, the CLKEXT bit should be equal to ‘0’.