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MCP3008T Datasheet(PDF) 3 Page - Microchip Technology

Part No. MCP3008T
Description  2.7V 4-Channel/8-Channel 10-Bit A/D Converters with SPI Serial Interface
Download  40 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

MCP3008T Datasheet(HTML) 3 Page - Microchip Technology

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© 2008 Microchip Technology Inc.
DS21295D-page 3
MCP3004/3008
1.0
ELECTRICAL
CHARACTERISTICS
Absolute Maximum Ratings †
VDD ..................................................................................7.0V
All Inputs and Outputs w.r.t. VSS ............– 0.6V to VDD +0.6V
Storage Temperature ................................... –65°C to +150°C
Ambient temperature with power applied.......–65°C to +150°C
Soldering temperature of leads (10 seconds) ............. +300°C
ESD Protection On All Pins (HBM)
...................................≥ 4kV
† 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 SPECIFICATIONS
Electrical Characteristics:
Unless otherwise noted, all parameters apply at VDD = 5V, VREF = 5V,
TA = -40°C to +85°C, fSAMPLE = 200 ksps and fCLK = 18*fSAMPLE. Unless otherwise noted, typical values apply for
VDD = 5V, TA = +25°C.
Parameter
Sym
Min
Typ
Max
Units
Conditions
Conversion Rate
Conversion Time
tCONV
10
clock
cycles
Analog Input Sample Time
tSAMPLE
1.5
clock
cycles
Throughput Rate
fSAMPLE
——
200
75
ksps
ksps
VDD = VREF = 5V
VDD = VREF = 2.7V
DC Accuracy
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
±1.0
LSB
Dynamic Performance
Total Harmonic Distortion
-76
dB
VIN = 0.1V to 4.9V@1 kHz
Signal-to-Noise and Distortion
(SINAD)
—61
dB
VIN = 0.1V to 4.9V@1 kHz
Spurious Free Dynamic Range
78
dB
VIN = 0.1V to 4.9V@1 kHz
Reference Input
Voltage Range
0.25
VDD
VNote 2
Current Drain
100
0.001
150
3
µA
µA
CS = VDD = 5V
Analog Inputs
Input Voltage Range for CH0 or
CH1 in Single-Ended Mode
VSS
—VREF
V
Input Voltage Range for IN+ in
pseudo-differential mode
IN-
VREF+IN-
Input Voltage Range for IN- in
pseudo-differential mode
VSS-100
VSS+100
mV
Note 1:
This parameter is established by characterization and not 100% tested.
2:
See graphs that relate linearity performance to VREF levels.
3:
Because the sample cap will eventually lose charge, effective clock rates below 10 kHz can affect linearity
performance, especially at elevated temperatures. See Section 6.2 “Maintaining Minimum Clock
Speed”
, “Maintaining Minimum Clock Speed”, for more information.


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