MCP3302/04
ELECTRICAL SPECIFICATIONS (CONTINUED)
Electrical Characteristics: Unless otherwise noted, all parameters apply at VDD = 5V, VSS = 0V, and VREF = 5V. Full differential
input configuration (Figure 3-4) with fixed common mode voltage of 2.5V. All parameters apply over temperature with
TAMB = -40°C to +85°C (Note 7). Conversion speed (FSAMPLE) is 100 ksps with FCLK = 21*FSAMPLE
Parameter
Symbol
Min
Typ
Max
Units
Conditions
Dynamic Performance
Total Harmonic Distortion
Signal to Noise and Distortion
Spurious Free Dynamic Range
Common Mode Rejection
Channel to Channel Crosstalk
Power Supply Rejection
Reference Input
THD
SINAD
SFDR
CMRR
CT
—
—
—
—
—
—
-91
78
92
79
> -110
74
—
—
—
—
—
—
dB
dB
dB
dB
dB
dB
Note 3
Note 3
Note 3
Note 6
Note 6
Note 4
PSR
Voltage Range
0.4
—
VDD
V
Note 2
Current Drain
—
—
100
0.001
150
3
µA
µA
CS = VDD = 5V
Analog Inputs
Full Scale Input Span
Absolute Input Voltage
Leakage Current
Switch Resistance
Sample Capacitor
CH0 - CH7
CH0 - CH7
-VREF
-0.3
—
—
—
—
—
0.001
1
VREF
VDD + 0.3
V
V
µA
kΩ
pF
±1
—
—
RS
CSAMPLE
See Figure 6-3
See Figure 6-3
25
Digital Input/Output
Data Coding Format
High Level Input Voltage
Low Level Input Voltage
High Level Output Voltage
Low Level Output Voltage
Input Leakage Current
Output Leakage Current
Pin Capacitance
Binary Two’s Complement
VIH
VIL
VOH
VOL
ILI
0.7 VDD
—
—
—
—
—
—
—
—
—
0.3 VDD
—
V
V
V
4.1
IOH = -1 mA, VDD = 4.5V
IOL = 1 mA, VDD = 4.5V
VIN = VSS or VDD
VOUT = VSS or VDD
TAMB = 25°C, F = 1 MHz, Note 1
—
0.4
V
-10
-10
—
10
10
10
µA
µA
pF
ILO
CIN, COUT
Note 1: This specification is established by characterization and not 100% tested.
2: See characterization graphs that relate converter performance to VREF level.
3:
VIN = 0.1V to 4.9V @ 1 kHz.
4: VDD =5VP-P ±500 mV @ 1 kHz, see test circuit Figure 3-3.
5: Maximum clock frequency specification must be met.
6:
VREF = 400 mV, VIN = 0.1V to 4.9V @ 1 kHz
7: TSSOP devices are only specified at 25°C and +85°C.
8: For slow sample rates, see Section 6.2.1 for limitations on clock frequency.
DS21697B-page 4
2002 Microchip Technology Inc.