ADS7280 低消費電力、14 ビット、1MHz、シングル/デュアル・ユニポーラ入力 ADC、シリアル・インターフェイス付 | TIJ.co.jp

ADS7280 (供給中) 低消費電力、14 ビット、1MHz、シングル/デュアル・ユニポーラ入力 ADC、シリアル・インターフェイス付

 

概要

The ADS7279 is a low-power, 14-bit, 1MSPS analog-to-digital converter (ADC) with a unipolar input. The device includes a 14-bit, capacitor-based successive approximation register (SAR) ADC with inherent sample-and-hold.

The ADS7280 is based on the same core and includes a 2-to-1 input MUX with a programmable TAG bit output option. Both the ADS7279 and ADS7280 offer a high-speed, wide voltage serial interface, and are capable of daisy-chain mode operation when multiple converters are used.

These converters are available in 4 × 4 QFN and TSSOP-16 packages, and are fully specified for operation over the industrial -40°C to +85°C temperature range.

特長

  • 2.7V to 5.5V Analog Supply, Low Power:
    • 13.7mW (1MHz, +VA = 3V, +VBD = 1.8V)
  • 1MHz Sampling Rate 3V ≤ +VA ≤ 5.5V,
    900kHz Sampling Rate 2.7V ≤ +VA ≤ 3V
  • Excellent DC Performance:
    • ±0.4LSB Typ, ±1.0LSB Max INL
    • ±0.4LSB Typ, ±1.0LSB Max DNL
    • ±0.8mV Max Offset Error at 3V
    • ±1.25mV Max Offset Error at 5V
  • Excellent AC Performance at fi = 10kHz with 85.9dB SNR, 105.3dB SFDR, -100.1dB THD
  • Built-In Conversion Clock (CCLK)
  • 1.65V to 5.5V I/O Supply:
    • SPI/DSP-Compatible Serial Interface
    • SCLK up to 50MHz
  • Comprehensive Power-Down Modes:
    • Deep Power-Down
    • Nap Power-Down
    • Auto Nap Power-Down
  • Unipolar Input Range: 0V to VREF
  • Software Reset
  • Global CONVST (Independent of CS)
  • Programmable Status/Polarity EOC/INT
  • 4 × 4 QFN-16 and TSSOP-16 Packages
  • Multi-Chip Daisy-Chain Mode
  • Programmable TAG Bit Output
  • Auto/Manual Channel Select Mode (ADS7280)
  • APPLICATIONS
    • Communications
    • Transducer Interface
    • Medical Instruments
    • Magnetometers
    • Industrial Process Control
    • Data Acquisition Systems
    • Automatic Test Equipment

機能一覧

他の製品と比較 高精度 ADCs (<=10MSPS) メール Excelへダウンロード
Part number オーダー・オプション Resolution (Bits) Sample rate (Max) (kSPS) Number of input channels Interface Operating temperature range (C) Package Group Approx. price (US$) Power consumption (Typ) (mW) Package size: mm2:W x L (PKG) Architecture Input type Multi-channel configuration Reference mode Features Input range (Max) (V) Input range (Min) (V) Analog voltage AVDD (Min) (V) Analog voltage AVDD (Max) (V) Digital supply (Min) (V) Digital supply (Max) (V) INL (Max) (+/-LSB) SNR (dB) THD (Typ) (dB) Rating
ADS7280 ご注文 14     1000     2     Serial     -40 to 85     QFN | 16
TSSOP | 16    
4.96 | 1ku     13.7     16QFN: 16 mm2: 4 x 4 (QFN | 16)
16TSSOP: 22 mm2: 4.4 x 5 (TSSOP | 16)    
SAR     Pseudo-Differential
Single-Ended    
Multiplexed     Ext     Daisy-Chainable
Oscillator    
5.5     0     2.7     5.5     1.65     5.5     1     85.9     -100.1     Catalog    
ADS7229 サンプルは利用できません。 12     1000     1     Serial     -40 to 85     QFN | 16
TSSOP | 16    
2.30 | 1ku     13.7     16QFN: 16 mm2: 4 x 4 (QFN | 16)
16TSSOP: 22 mm2: 4.4 x 5 (TSSOP | 16)    
SAR     Pseudo-Differential
Single-Ended    
    Ext     Daisy-Chainable
Oscillator    
5.5     0     2.7     5.5     1.65     5.5     0.5     73.9     -88.5     Catalog    
ADS7230 ご注文 12     1000     2     Serial     -40 to 85     QFN | 16
TSSOP | 16    
3.15 | 1ku     13.7     16QFN: 16 mm2: 4 x 4 (QFN | 16)
16TSSOP: 22 mm2: 4.4 x 5 (TSSOP | 16)    
SAR     Pseudo-Differential
Single-Ended    
Multiplexed     Ext     Daisy-Chainable
Oscillator    
5.5     0     2.7     5.5     1.65     5.5     0.5     73.9     -88.5     Catalog    
ADS7279 ご注文 14