MCP3002_08 Datasheet, PDF (3/34 Pages) Microchip Technology – 2.7V Dual Channel 10-Bit A/D Converter with SPI Serial Interface

MCP3002
1.0 ELECTRICAL
CHARACTERISTICS
Absolute Maximum Ratings †
V_DD ..................................................................................7.0V
All Inputs and Outputs w.r.t. V_SS ............– 0.6V to V_DD + 0.6V
Storage Temperature ................................... –65°C to +150°C
Ambient temperature with power applied.......–65°C to +150°C
ESD Protection On All Pins (HBM) ...................................≥ 4 kV
† 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
indicated in the operational listings of this specification is not
implied. Exposure to maximum rating conditions for extended
periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
All parameters apply at V_DD = 5V, T_A = -40°C to +85°C, f_SAMPLE = 200 ksps and f_CLK = 16*f_SAMPLE, unless otherwise noted.
Typical values apply for V_DD = 5V, T_A = +25°C, unless otherwise noted.
PARAMETER
SYM
MIN
TYP
MAX
UNITS
CONDITIONS
Conversion Rate:
Conversion Time
Analog Input Sample Time
T_CONV
—
—
10
clock
cycles
T_SAMPLE
1.5
clock
cycles
Throughput Rate
DC Accuracy:
F_SAMPLE
—
—
200
75
ksps
ksps
V_DD = 5V
V_DD = 2.7V
Resolution
10
bits
Integral Nonlinearity
INL
—
±0.5
±1
LSB
Differential Nonlinearity
DNL
—
±0.25
±1
LSB No missing codes over
temperature
Offset Error
—
—
±1.5
LSB
Gain Error
—
—
±1
LSB
Dynamic Performance:
Total Harmonic Distortion
Signal to Noise and Distortion
(SINAD)
THD
SINAD
—
-76
—
—
61
—
dB
V_IN = 0.1V to 4.9V@1 kHz
dB
V_IN = 0.1V to 4.9V@1 kHz
Spurious Free Dynamic Range
Analog Inputs:
SFDR
—
78
—
dB
V_IN = 0.1V to 4.9V@1 kHz
Input Voltage Range for CH0 or CH1
in Single-Ended Mode
V_SS
—
V_DD
V
Input Voltage Range for IN+ In
pseudo-differential Mode
IN+
IN-
—
V_DD+IN-
Input Voltage Range for IN- In
pseudo-differential Mode
IN-
V_SS-100
—
V_SS+100
mV
Leakage Current
—
0.001
±1
µA
Switch Resistance
R_SS
—
1K
—
Ω
See Figure 4-1
Sample Capacitor
C_SAMPLE
—
20
—
pF See Figure 4-1
Note 1: This parameter is established by characterization and not 100% tested.
2: The sample cap will eventually lose charge, especially at elevated temperatures, therefore f_CLK ≥10 kHz for temperatures
at or above 70°C.
© 2008 Microchip Technology Inc.
DS21294D-page 3