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Product Overview
The AMC7812SPAPR from Texas Instruments is a complete analog front-end (AFE) device designed for precision data acquisition systems. It integrates a 12-bit successive approximation register (SAR) analog-to-digital converter (ADC) with an 8-channel input multiplexer, a programmable gain amplifier (PGA), and a precision voltage reference. The device operates from a single 2.7V to 5.5V supply and communicates via a 4-wire SPI interface. Housed in a compact 64-pin HTQFP (10x10 mm) package, it is ideal for space-constrained applications requiring high accuracy and low power consumption.
Detailed Technical Specifications
| Parameter |
Value |
| Resolution |
12 Bits |
| Number of Input Channels |
8 (single-ended) |
| Sampling Rate (max) |
500 kSPS |
| Input Type |
Single-Ended |
| Data Interface |
SPI |
| Reference Type |
Internal, External |
| Voltage - Supply, Analog |
2.7V ~ 5.5V |
| Voltage - Supply, Digital |
2.7V ~ 5.5V |
| Operating Temperature |
-40°C ~ 125°C |
| Package / Case |
64-HTQFP (10x10 mm) |
Key Features
- 12-bit SAR ADC with 500 kSPS throughput
- 8-channel input multiplexer with PGA (gain options: 1, 2, 4, 8)
- Internal 2.5V reference with 10 ppm/°C drift
- SPI-compatible serial interface with daisy-chain support
- Low power: 4.5 mW at 500 kSPS
- Wide supply range: 2.7V to 5.5V
- Extended temperature range: -40°C to +125°C
- Small footprint: 64-HTQFP (10x10 mm)
Target Applications
- 5G base station power amplifier monitoring (e.g., bias control, temperature sensing)
- Automotive dashboard instrumentation (e.g., battery voltage, current sensing)
- Industrial process control (e.g., pressure, temperature transmitters)
- Medical patient monitoring (e.g., ECG, SpO2 front-end)
- Data acquisition modules for test and measurement equipment
Global Supply Chain & Wholesale Solutions
At Jasin Chip, we provide professional supply chain and wholesale solutions for
AMC7812SPAPR. Our core advantages include:
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24/7 Global Customer Support: Professional team providing instant
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testing samples and urgent shortage components.
Quality Assurance & Compliance
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with full quality assurance and traceability.
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be authentic with strict quality control.
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RoHS Compliant: All electronic components comply with international
environmental and safety standards.
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Original Factory Packaging: We maintain original factory packaging
and seals to ensure ESD protection and physical integrity.
產品概述
AMC7812SPAPR 是德州儀器(TI)推出的一款完整模擬前端(AFE)器件,專為精密數據採集系統設計。它集成了12位逐次逼近寄存器(SAR)模數轉換器(ADC)、8通道輸入多路復用器、可編程增益放大器(PGA)和精密電壓基準。該器件可在2.7V至5.5V的單電源下工作,並通過4線SPI接口進行通信。採用緊湊的64引腳HTQFP(10x10 mm)封裝,非常適合需要高精度和低功耗的空間受限應用。
詳細技術參數
| 參數 |
數值 |
| 分辨率 |
12 位 |
| 輸入通道數 |
8(單端) |
| 最大採樣率 |
500 kSPS |
| 輸入類型 |
單端 |
| 數據接口 |
SPI |
| 基準類型 |
內部、外部 |
| 模擬電源電壓 |
2.7V ~ 5.5V |
| 數字電源電壓 |
2.7V ~ 5.5V |
| 工作溫度範圍 |
-40°C ~ 125°C |
| 封裝/外殼 |
64-HTQFP(10x10 mm) |
核心特性
- 12位SAR ADC,吞吐量500 kSPS
- 8通道輸入多路復用器,帶PGA(增益選項:1、2、4、8)
- 內部2.5V基準,漂移10 ppm/°C
- SPI兼容串行接口,支持菊花鏈
- 低功耗:500 kSPS時僅4.5 mW
- 寬電源範圍:2.7V至5.5V
- 擴展溫度範圍:-40°C至+125°C
- 小尺寸:64-HTQFP(10x10 mm)
典型應用場景
- 5G基站功放監控(如偏置控制、溫度感測)
- 汽車儀表盤儀表(如電池電壓、電流感測)
- 工業過程控制(如壓力、溫度變送器)
- 醫療病人監護(如心電圖、血氧飽和度前端)
- 測試與測量設備的數據採集模塊
環球供應鏈與批發合作夥伴方案
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