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高精度 ADC

ADC128D818

アクティブ

温度センサと I2C インターフェイス搭載、内部と外部の電圧リファレンスに対応、12 ビット、82SPS、8 チャネル デルタ シグマ ADC

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データシート

ADC128D818

アクティブ
データシート ご注文はこちら

製品詳細

Resolution (Bits) 12 Sample rate (max) (ksps) 0.82 Number of input channels 8 Interface type I2C Architecture Delta-Sigma Input type Pseudo-Differential, Single-ended Multichannel configuration Multiplexed Rating Catalog Reference mode External, Internal Input voltage range (max) (V) 5.5 Input voltage range (min) (V) 0 Features Oscillator, Temp Sensor Operating temperature range (°C) -40 to 125 Power consumption (typ) (mW) 2 Analog supply voltage (min) (V) 3 Analog supply voltage (max) (V) 5.5 Digital supply (min) (V) 3 Digital supply (max) (V) 5.5
Resolution (Bits) 12 Sample rate (max) (ksps) 0.82 Number of input channels 8 Interface type I2C Architecture Delta-Sigma Input type Pseudo-Differential, Single-ended Multichannel configuration Multiplexed Rating Catalog Reference mode External, Internal Input voltage range (max) (V) 5.5 Input voltage range (min) (V) 0 Features Oscillator, Temp Sensor Operating temperature range (°C) -40 to 125 Power consumption (typ) (mW) 2 Analog supply voltage (min) (V) 3 Analog supply voltage (max) (V) 5.5 Digital supply (min) (V) 3 Digital supply (max) (V) 5.5
TSSOP (PW) 16 32 mm² (5 mm × 6.4 mm)
  • 12-Bit Resolution Delta-Sigma ADC
  • Local Temperature Sensing
  • Configurable Single-Ended and/or Pseudo-Diff.
    Inputs
  • 2.56-V Internal VREF or Variable External VREF
  • WATCHDOG Window Comparators with Status
    and Mask Registers of All Measured Values
  • Independent Registers for Storing Measured
    Values
  • INT Output Notifies Microprocessor of Error Event
  • I2C Serial Bus Interface Compatibility
  • 9 Selectable Addresses
  • TIME-OUT Reset Function to Prevent I2C Bus
    Lock-Up
  • Individual Channel Shutdown to Limit Power
    Consumption
  • Deep Shutdown Mode to Minimize Power
    Consumption
  • TSSOP 16-Lead Package
  • Key Specifications
    • ADC Resolution 12-Bit
    • Supply Voltage Range 3 V to 5.5 V
    • Total Unadjusted Error –0.45%/+0.2%
    • Integral Non-Linearity ±1 LSb
    • Differential Non-Linearity ±1 LSb
    • Operating Current 0.56 mA
    • Deep Shutdown Current 10 ±A
    • Temperature Resolution °C/LSb
    • Temperature Accuracy (–40°C to 125°C) ±3°C
    • Temperature Accuracy (–25°C to 100°C) ±2°C
  • 12-Bit Resolution Delta-Sigma ADC
  • Local Temperature Sensing
  • Configurable Single-Ended and/or Pseudo-Diff.
    Inputs
  • 2.56-V Internal VREF or Variable External VREF
  • WATCHDOG Window Comparators with Status
    and Mask Registers of All Measured Values
  • Independent Registers for Storing Measured
    Values
  • INT Output Notifies Microprocessor of Error Event
  • I2C Serial Bus Interface Compatibility
  • 9 Selectable Addresses
  • TIME-OUT Reset Function to Prevent I2C Bus
    Lock-Up
  • Individual Channel Shutdown to Limit Power
    Consumption
  • Deep Shutdown Mode to Minimize Power
    Consumption
  • TSSOP 16-Lead Package
  • Key Specifications
    • ADC Resolution 12-Bit
    • Supply Voltage Range 3 V to 5.5 V
    • Total Unadjusted Error –0.45%/+0.2%
    • Integral Non-Linearity ±1 LSb
    • Differential Non-Linearity ±1 LSb
    • Operating Current 0.56 mA
    • Deep Shutdown Current 10 ±A
    • Temperature Resolution °C/LSb
    • Temperature Accuracy (–40°C to 125°C) ±3°C
    • Temperature Accuracy (–25°C to 100°C) ±2°C

The ADC128D818 I2C system monitor is designed for maximum flexibility. The system monitor can be configured for single-ended and/or pseudo-differential inputs. An onboard temperature sensor, combined with WATCHDOG window comparators, and an interrupt output pin, INT, allow easy monitoring and out-of-range alarms for every channel. A high performance internal reference is also available to provide for a complete solution in the most difficult operating conditions.

The ADC128D818’s 12-bit delta-sigma ADC supports Standard Mode (Sm, 100 kbps) and Fast Mode (Fm, 400 kbps) I2C interfaces. The ADC128D818 includes a sequencer to control channel conversions and stores all converted results in independent registers for easy microprocessor retrieval. Unused channels can be shut down independently to conserve power.

The ADC can use either an internal 2.56-V reference or a variable external reference. An analog filter is included on the I2C digital control lines to provide improved noise immunity. The device also includes a TIME-OUT reset function on SDA and SCL to prevent I2C bus lock-up.

The ADC128D818 operates from 3-V to 5.5-V power supply voltage range, –40°C to 125°C temperature range, and the device is available in a 16-pin TSSOP package.

The ADC128D818 I2C system monitor is designed for maximum flexibility. The system monitor can be configured for single-ended and/or pseudo-differential inputs. An onboard temperature sensor, combined with WATCHDOG window comparators, and an interrupt output pin, INT, allow easy monitoring and out-of-range alarms for every channel. A high performance internal reference is also available to provide for a complete solution in the most difficult operating conditions.

The ADC128D818’s 12-bit delta-sigma ADC supports Standard Mode (Sm, 100 kbps) and Fast Mode (Fm, 400 kbps) I2C interfaces. The ADC128D818 includes a sequencer to control channel conversions and stores all converted results in independent registers for easy microprocessor retrieval. Unused channels can be shut down independently to conserve power.

The ADC can use either an internal 2.56-V reference or a variable external reference. An analog filter is included on the I2C digital control lines to provide improved noise immunity. The device also includes a TIME-OUT reset function on SDA and SCL to prevent I2C bus lock-up.

The ADC128D818 operates from 3-V to 5.5-V power supply voltage range, –40°C to 125°C temperature range, and the device is available in a 16-pin TSSOP package.
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技術資料

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上位の文書 タイプ タイトル フォーマットオプション 最新の英語版をダウンロード 日付
* データシート ADC128D818 12-Bit, 8-Channel, ADC System Monitor With Temperature Sensor, Internal – External Reference, and I2C Interface データシート (Rev. F) PDF | HTML 2015/08/31
アプリケーション・ノート Calculating Conversion Latency and System Cycle Time for Delta-Sigma ADCs (Rev. A) PDF | HTML 2024/03/18
アプリケーション・ノート Digital Filter Types in Delta-Sigma ADCs (Rev. A) PDF | HTML 2023/03/29
アプリケーション・ノート A Basic Guide to I2C PDF | HTML 2022/11/08
e-Book（PDF） Fundamentals of Precision ADC Noise Analysis (Rev. A) 2020/06/19
e-Book（PDF） Best of Baker's Best: Precision Data Converters -- Delta-Sigma ADCs 2015/03/19

設計と開発

その他のアイテムや必要なリソースを参照するには、以下のタイトルをクリックして詳細ページをご覧ください。

ドライバまたはライブラリ

ADC128D818SW-LINUX — Linux ドライバ、ADC128D818 用

The Linux driver supports the ADC128D818 System Monitor. The Linux driver supports communication through the I2C bus and interfaces with the Hardware Monitoring sub-system.

 

Linux Mainline Status

Available in Linux Main line: Yes
Available through git.ti.com: N/A

Supported Devices:

  • adc128d818

 

Linux (...)

サポート対象の製品とハードウェア
サポート・ソフトウェア

SENSOREVAL — Eval Board Software For Hardware Monitors And Digital Temperature Sensors

SensorEval
SensorEval software supports the latest TI temperature sensor and hardware monitor evaluation boards via USB interface. It also allows access to sensors mounted directly on motherboards that support Intel chip sets.

  • Download SensorEval Software and Manual
  • Windows XP support is offered for (...)
サポート対象の製品とハードウェア
シミュレーション・モデル

ADC128D818 IBIS Model

SNAM220.ZIP (180 KB) - IBIS モデル
サポート対象の製品とハードウェア
設計ツール

ADC-DAC-TO-VREF-SELECT-DESIGN-TOOL — The ADC-TO-VREF-SELECT tool enables the pairing of TI ADCs, DACs, and series voltage references.

The ADC-TO-VREF-SELECT tool enables the pairing of TI analog-to-digital converters (ADCs) and series voltage references. Users can select an ADC device and the desired reference voltage, and the tool will list up to two voltage reference recommendations.
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パッケージ ピン数 CAD シンボル、フットプリント、および 3D モデル
TSSOP (PW) 16 Ultra Librarian
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