Datasheet > ISL26132AVZ

ISL26132AVZ

更新时间： 2024-11-18 11:11:47

品牌	Logo	应用领域
英特矽尔 - INTERSIL		/
页数	文件大小	规格书
23页	971K
描述
Low-Noise 24-bit Delta Sigma ADC

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ISL26132AVZ 数据手册

Low-Noise 24-bit Delta Sigma ADC

ISL26132, ISL26134

Features

The ISL26132 and ISL26134 are complete analog front ends

for high resolution measurement applications. These 24-bit

Delta-Sigma Analog-to-Digital Converters include a very

low-noise amplifier and are available as either two or four

differential multiplexer inputs. The devices offer the same

pinout as the ADS1232 and ADS1234 devices and are

functionally compatible with these devices. The ISL26132 and

ISL26134 offer improved noise performance at 10Sps and

80Sps conversion rates.

• Up to 21.6 Noise-free bits.

• Low Noise Amplifier with Gains of 1x/2x/64x/128x

• RMS noise: 10.2nV @ 10Sps (PGA = 128x)

• Linearity Error: 0.0002% FS

• Simultaneous rejection of 50Hz and 60Hz (@ 10Sps)

• Two (ISL26132) or four (ISL26134) channel differential

input multiplexer

• On-chip temperature sensor (ISL26132)

• Automatic clock source detection

The on-chip low-noise programmable-gain amplifier provides

gains of 1x/2x/64x/128x. The 128x gain setting provides an

input range of ±9.766mVFS when using a 2.5V reference. The

high input impedance allows direct connection of sensors such

as load cell bridges to ensure the specified measurement

accuracy without additional circuitry. The inputs accept signals

100mV outside the supply rails when the device is set for unity

gain.

• Simple interface to read conversions

• +5V Analog, +5 to +2.7V Digital Supplies

• Pb-Free (RoHS Compliant)

• TSSOP packages: ISL26132, 24 pin; ISL26134, 28 pin

Applications

• Weigh Scales

The Delta-Sigma ADC features a third order modulator

providing up to 21.6-bit noise-free performance.

The device can be operated from an external clock source,

crystal (4.9152MHz typical), or the on-chip oscillator.

• Temperature Monitors and Controls

• Industrial Process Control

• Pressure Sensors

The two channel ISL26132 is available in a 24 Ld TSSOP

package and the four channel ISL26134 is available in a 28 Ld

TSSOP package. Both are specified for operation over the

automotive temperature range (-40°C to +105°C).

CAP

AVDD

DVDD

XTALIN/CLOCK

INTERNAL

CLOCK

EXTERNAL

OSCILLATOR

XTALOUT

AIN1+

AIN1-

SDO/RDY

SCLK

AIN2+

AIN2-

PGA

1x/2x/64x/

128x

INPUT

MULTIPLEXER

ADC

AIN3+

AIN3-

ISL26134

Only

AIN4+

AIN4-

PWDN

SPEED

A0 A1/TEMP AGND

GAIN0 GAIN1

DGND

CAP

DGND

VREF+

VREF-

NOTE for A1/TEMP pin: Functions as A1 on ISL26134; Functions as TEMP on ISL26132

FIGURE 1. BLOCK DIAGRAM

September 9, 2011

FN6954.1

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.

Intersil (and design) is a trademark owned by Intersil Corporation or one of its subsidiaries.

All other trademarks mentioned are the property of their respective owners.

12 3 4 5 6 7...23

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ISL26132AVZ 替代型号

型号	品牌	替代类型	描述	数据表
ISL26132AVZ-T7A	INTERSIL	完全替代	Low-Noise 24-bit Delta Sigma ADC

与ISL26132AVZ相关器件

型号	品牌	获取价格	描述	数据表
ISL26132AVZ-T	INTERSIL	获取价格	Low-Noise 24-bit Delta Sigma ADC
ISL26132AVZ-T7A	INTERSIL	获取价格	Low-Noise 24-bit Delta Sigma ADC
ISL26134	INTERSIL	获取价格	Low-Noise 24-bit Delta Sigma ADC
ISL26134AV28EV1Z	INTERSIL	获取价格	Low-Noise 24-bit Delta Sigma ADC
ISL26134AVZ	INTERSIL	获取价格	Low-Noise 24-bit Delta Sigma ADC
ISL26134AVZ-T	INTERSIL	获取价格	Low-Noise 24-bit Delta Sigma ADC
ISL26134AVZ-T7A	INTERSIL	获取价格	Low-Noise 24-bit Delta Sigma ADC
ISL26310	INTERSIL	获取价格	12-bit, 125kSPS Low-power ADCs with Single-ended and Differential Inputs and Multiple Inpu
ISL26310FBZ	INTERSIL	获取价格	12-bit, 125kSPS Low-power ADCs with Single-ended and Differential Inputs and Multiple Inpu
ISL26311	INTERSIL	获取价格	12-bit, 125kSPS Low-power ADCs with Single-ended and Differential Inputs and Multiple Inpu

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