Datasheet

 2011 Microchip Technology Inc. DS21697F-page 3
MCP3302/04
1.0 ELECTRICAL
CHARACTERISTICS
Absolute Maximum Ratings †
V
DD
...................................................................................7.0V
All inputs and outputs w.r.t. V
SS
............... -0.3V to V
DD
+0.3V
Storage temperature .....................................-65°C to +150°C
Ambient temp. with power applied ................-65°C to +125°C
Maximum Junction Temperature .................................. 150°C
ESD protection on all pins (HBM)  4kV
† Notice: Stresses above those listed under “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
SS
= 0V, and V
REF
= 5V. Full differential
input configuration (Figure 1-5) with fixed common mode voltage of 2.5V. All parameters apply over temperature with
T
A
= -40°C to +85°C (Note 7). Conversion speed (F
SAMPLE
) is 100 ksps with F
CLK
= 21*F
SAMPLE
Parameter Symbol Min Typ Max Units Conditions
Conversion Rate
Maximum Sampling Frequency F
SAMPLE
— — 100 ksps See F
CLK
specification. Note 8
Conversion Time T
CONV
13 CLK
periods
Acquisition Time T
ACQ
1.5 CLK
periods
DC Accuracy
Resolution 12 data bits + sign bits
Integral Nonlinearity INL — ±0.5 ±1 LSB MCP3302/04-B
— ±1 ±2 LSB MCP3302/04-C
Differential Nonlinearity DNL — ±0.5 ±1 LSB Monotonic over temperature
Positive Gain Error -3 -0.75 +2 LSB
Negative Gain Error -3 -0.5 +2 LSB
Offset Error -3 +3 +6 LSB
Dynamic Performance
Total Harmonic Distortion THD — -91 — dB Note 3
Signal-to-Noise and Distortion SINAD — 78 — dB Note 3
Spurious Free Dynamic Range SFDR — 92 — dB Note 3
Common Mode Rejection CMRR — 79 — dB Note 6
Channel to Channel Crosstalk CT — > -110 — dB Note 6
Power Supply Rejection PSR — 74 — dB Note 4
Reference Input
Voltage Range 0.4 — V
DD
VNote 2
Current Drain — 100 150 µA
— 0.001 3 µA CS
= V
DD
= 5V
Note 1: This specification is established by characterization and not 100% tested.
2: See characterization graphs that relate converter performance to V
REF
level.
3: V
IN
= 0.1V to 4.9V @ 1 kHz.
4: V
DD
=5V DC ±500 mV
P-P
@ 1 kHz, see test circuit Figure 1-4.
5: Maximum clock frequency specification must be met.
6: V
REF
= 400 mV, V
IN
= 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 5.2 “Driving the Analog Input” for limitations on clock frequency.
9: 4.5V - 5.5V is the supply voltage range for specified performance.