Datasheet

© 2008 Microchip Technology Inc. DS21295D-page 3
MCP3004/3008
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
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 V
DD
= 5V, V
REF
= 5V,
T
A
= -40°C to +85°C, f
SAMPLE
= 200 ksps and f
CLK
= 18*f
SAMPLE
. Unless otherwise noted, typical values apply for
V
DD
= 5V, T
A
= +25°C.
Parameter Sym Min Typ Max Units Conditions
Conversion Rate
Conversion Time t
CONV
— — 10 clock
cycles
Analog Input Sample Time t
SAMPLE
1.5 clock
cycles
Throughput Rate f
SAMPLE
——200
75
ksps
ksps
V
DD
= V
REF
= 5V
V
DD
= V
REF
= 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 V
IN
= 0.1V to 4.9V@1 kHz
Signal-to-Noise and Distortion
(SINAD)
—61 dBV
IN
= 0.1V to 4.9V@1 kHz
Spurious Free Dynamic Range — 78 dB V
IN
= 0.1V to 4.9V@1 kHz
Reference Input
Voltage Range 0.25 — V
DD
VNote2
Current Drain — 100
0.001
150
3
µA
µA CS
= V
DD
= 5V
Analog Inputs
Input Voltage Range for CH0 or
CH1 in Single-Ended Mode
V
SS
—V
REF
V
Input Voltage Range for IN+ in
pseudo-differential mode
IN- — V
REF
+IN-
Input Voltage Range for IN- in
pseudo-differential mode
V
SS
-100 — V
SS
+100 mV
Note 1: This parameter is established by characterization and not 100% tested.
2: See graphs that relate linearity performance to V
REF
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.