Microchip Technology Audio Digital-to-Analog Converter Instrukcja Użytkownika Pobierz pdf (Strona 7)

High-Performance, Stand-Alone ADCs for a Variety of Embedded Systems Applications

6 ADC Converter Function Pack Design Guide

ADC Converter Function Pack Design Guide 7

High-Performance, Stand-Alone ADCs for a Variety of Embedded Systems Applications

SAR CONVERTERS – 13-BIT DIFFERENTIAL INPUT ADC – IDEAL FOR INTERFACING TO SENSORS

The MCP330X family of data converters offers true differential

input with a bipolar two’s complement output. Strain gauges,

wheatstone bridges, and AC signals are all ideally interfaced

to the differential input ADCs. These ADCs provide single

differential input, two differential input or four differential

inputs.

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MCP330X ADC Applications:

n Remote Sensors

n Battery Operated Systems

n Transducer Interface

MCP330X ADC Key Features:

n Full Differential Inputs with a 13-bit Resolution

n ±1 LSB DNL max.

n ±1 LSB INL max.

n ±2 LSB INL max.

n Number of Single-ended Inputs:

- 1 (MCP3301)

- 4 (MCP3302)

- 8 (MCP3304)

n On-chip sample and hold

n SPI™ serial interface (modes 0,0 and 1,1)

n Single-supply specified operation: 2.7V to 5.5V

n Low-power CMOS technology:

- 500 nA standby current

- 300 µA active current at 5V, 100 ksps

n 100 ksps sampling rate with 5V supply current

n Temperature Range: -40°C to +85ºC

The low power consumption of these devices at up to 100

ksps, in addition to their high resolution, makes these sensors

ideal for portable AC measurement applications.

ADC Product Specifications

Device

Resolution

(bits)

Maximum

Sampling

Rate

(samples/sec)

# of

Input

Channels Input Type Interface

Input

Voltage

Range

(V)

Active

Current

Max.

(µA)

Max.

INL

Temp.

Range

(C°) Packages

MCP3301 13 100 1 Differential SPI™ 2.7 to 5.5 450 +1 LSB -40 to +85 8 PDIP, MSOP, SOIC

MCP3302 13 100 2 Differential SPI 2.7 to 5.5 450 ±1 LSB -40 to +85 14 PDIP, SOIC, TSSOP

MCP3304 13 100 4 Differential SPI 2.7 to 5.5 450 ±1 LSB -40 to +85 16 PDIP, SOIC

1 2 3 4 5 6 7 8 9 10 11 12 ... 15 16

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