MCP3302(2002) View Datasheet(PDF) - Microchip Technology

Part Name

Description

Manufacturer

MCP3302
(Rev.:2002)

13-Bit Differential Input, Low Power A/D Converter with SPI™ Serial Interface

Microchip Technology 

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

THD

—

-91

—

dB

Signal to Noise and Distortion

SINAD

—

78

—

dB

Spurious Free Dynamic Range

SFDR

—

92

—

dB

Common Mode Rejection

CMRR

—

79

—

dB

Channel to Channel Crosstalk

CT

— > -110

—

dB

Power Supply Rejection

PSR

—

74

—

dB

Reference Input

Voltage Range

Current Drain

0.4

—

VDD

V

—

100

150

µA

— 0.001

3

µA

Analog Inputs

Full Scale Input Span

Absolute Input Voltage

Leakage Current

CH0 - CH7 -VREF —

VREF

V

CH0 - CH7 -0.3

— VDD + 0.3

V

— 0.001

±1

µA

Switch Resistance

Sample Capacitor

Digital Input/Output

RS

—

1

—

kΩ

CSAMPLE

—

25

—

pF

Data Coding Format

Binary Two’s Complement

High Level Input Voltage

VIH

0.7 VDD —

—

V

Low Level Input Voltage

VIL

—

—

0.3 VDD

V

High Level Output Voltage

VOH

4.1

—

—

V

Low Level Output Voltage

VOL

—

—

0.4

V

Input Leakage Current

ILI

-10

—

10

µA

Output Leakage Current

ILO

-10

—

10

µA

Pin Capacitance

CIN, COUT

—

—

10

pF

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.

Note 3

Note 3

Note 3

Note 6

Note 6

Note 4

Note 2

CS = VDD = 5V

See Figure 6-3

See Figure 6-3

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

DS21697B-page 4

 2002 Microchip Technology Inc.

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