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PGA309AIPWRG4.B中文资料

厂家型号

PGA309AIPWRG4.B

文件大小

649.67Kbytes

页面数量

26

功能描述

Voltage Output Programmable Sensor Conditioner

数据手册

下载地址一下载地址二到原厂下载

生产厂商

TI2

PGA309AIPWRG4.B数据手册规格书PDF详情

1FEATURES

2• Complete Bridge Sensor Conditioner

• Voltage Output: Ratiometric or Absolute

• Digital Cal: No Potentiometers/Sensor Trims

• Sensor Error Compensation

– Span, Offset, and Temperature Drifts

• Low Error, Time-Stable

• Sensor Linearization Circuitry

• Temperature Sense: Internal or External

• Calibration Lookup Table Logic

– Uses External EEPROM (SOT23-5)

• Over/Under-Scale Limiting

• Sensor Fault Detection

• +2.7V TO +5.5V Operation

• –40°C to +125°C Operation

• Small TSSOP-16 Package

APPLICATIONS

• Bridge Sensors

• Remote 4-20mA Transmitters

• Strain, Load, and Weigh Scales

• Automotive Sensors

EVALUATION TOOLS

• Hardware Designer’s Kit (PGA309EVM)

– Temperature Eval of PGA309 + Sensor

– Full Programming of PGA309

– Sensor Compensation Analysis Tool

DESCRIPTION

The PGA309 is a programmable analog signal

conditioner designed for bridge sensors. The analog

signal path amplifies the sensor signal and provides

digital calibration for zero, span, zero drift, span drift,

and sensor linearization errors with applied stress

(pressure, strain, etc.). The calibration is done via a

One-Wire digital serial interface or through a

Two-Wire industry-standard connection. The

calibration parameters are stored in external

nonvolatile memory (typically SOT23-5) to eliminate

manual trimming and achieve long-term stability.

The all-analog signal path contains a 2x2 input

multiplexer (mux), auto-zero programmable-gain

instrumentation amplifier, linearization circuit, voltage

reference, internal oscillator, control logic, and an

output amplifier. Programmable level shifting

compensates for sensor dc offsets.

The core of the PGA309 is the precision, low-drift, no

1/f noise Front-End PGA (Programmable Gain

Amplifier). The overall gain of the Front-End PGA +

Output Amplifier can be adjusted from 2.7V/V to

1152V/V. The polarity of the inputs can be switched

through the input mux to accommodate sensors with

unknown polarity output. The Fault Monitor circuit

detects and signals sensor burnout, overload, and

system fault conditions.

For detailed application information, see the PGA309

User's Guide (SBOU024) available for download at

www.ti.com.

更新时间:2025-10-6 11:00:00
供应商 型号 品牌 批号 封装 库存 备注 价格
TI/德州仪器
23+
TSSOP16
50000
全新原装正品现货,支持订货
TI/德州仪器
24+
TSSOP16
60000
全新原装现货
TI/德州仪器
25+
TSSOP16
54658
百分百原装现货 实单必成
TI/德州仪器
24+
TSSOP16
39197
郑重承诺只做原装进口现货
24+
TSSOP-16
745
TI
25+
TSSOP
5000
热卖
BB
25+
SMD
18000
原厂直接发货进口原装
TI
17+
TSSOP16
6200
100%原装正品现货
TI/BB
09+
TSSOP16
2155
主营TI/BB原装正品货绝对还
TI
23+
TSSOP16
8000
原装正品,假一罚十