MCP3004/3008
ELECTRICAL SPECIFICATIONS (CONTINUED)
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
Leakage Current
—
0.001
±1
µA
Switch Resistance
—
1000
—
Ω See Figure 4-1
Sample Capacitor
—
20
—
pF See Figure 4-1
Digital Input/Output
Data Coding Format
Straight Binary
High Level Input Voltage
Low Level Input Voltage
High Level Output Voltage
Low Level Output Voltage
Input Leakage Current
Output Leakage Current
Pin Capacitance
(All Inputs/Outputs)
Timing Parameters
VIH 0.7 VDD
—
VIL
—
VOH
4.1
—
VOL
—
—
ILI
-10
—
ILO
-10
—
CIN,
—
—
COUT
—
0.3 VDD
—
0.4
10
10
10
V
V
V IOH = -1 mA, VDD = 4.5V
V IOL = 1 mA, VDD = 4.5V
µA VIN = VSS or VDD
µA VOUT = VSS or VDD
pF VDD = 5.0V (Note 1)
TA = 25°C, f = 1 MHz
Clock Frequency
fCLK
—
—
3.6
MHz VDD = 5V (Note 3)
1.35
MHz VDD = 2.7V (Note 3)
Clock High Time
tHI
125
—
—
ns
Clock Low Time
tLO
125
—
—
ns
CS Fall To First Rising CLK Edge tSUCS
100
—
—
ns
CS Fall To Falling CLK Edge
tCSD
—
—
0
ns
Data Input Setup Time
tSU
50
—
—
ns
Data Input Hold Time
tHD
50
—
—
ns
CLK Fall To Output Data Valid
tDO
—
—
125
ns VDD = 5V, See Figure 1-2
200
ns VDD = 2.7V, See Figure 1-2
CLK Fall To Output Enable
tEN
—
—
125
ns VDD = 5V, See Figure 1-2
200
ns VDD = 2.7V, See Figure 1-2
CS Rise To Output Disable
tDIS
—
—
100
ns See Test Circuits, Figure 1-2
CS Disable Time
tCSH
270
—
—
ns
DOUT Rise Time
tR
—
—
100
ns See Test Circuits, Figure 1-2
(Note 1)
DOUT Fall Time
tF
—
—
100
ns See Test Circuits, Figure 1-2
(Note 1)
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.
DS21295D-page 4
© 2008 Microchip Technology Inc.