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ADS1203

現行

電流分流 delta-sigma 調變器、10MHz CLK、+/-250mV 輸入、16 位元解析度、外部參考選項

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ADS1203

現行
產品規格表 立即訂購

產品詳細資料

Resolution (Bits) 16 Number of input channels 1 Interface type Serial Architecture Delta-Sigma Modulator Input type Differential Rating Catalog Reference mode External, Internal Input voltage range (max) (V) 0.25 Input voltage range (min) (V) -0.25 Features Oscillator, Small Size Operating temperature range (°C) -40 to 125 Power consumption (typ) (mW) 33 Analog supply voltage (min) (V) 4.5 Analog supply voltage (max) (V) 5.5 SNR (dB) 85 Digital supply (min) (V) 2.7 Digital supply (max) (V) 5.5
Resolution (Bits) 16 Number of input channels 1 Interface type Serial Architecture Delta-Sigma Modulator Input type Differential Rating Catalog Reference mode External, Internal Input voltage range (max) (V) 0.25 Input voltage range (min) (V) -0.25 Features Oscillator, Small Size Operating temperature range (°C) -40 to 125 Power consumption (typ) (mW) 33 Analog supply voltage (min) (V) 4.5 Analog supply voltage (max) (V) 5.5 SNR (dB) 85 Digital supply (min) (V) 2.7 Digital supply (max) (V) 5.5
TSSOP (PW) 8 19.2 mm² 3 x 6.4 VQFN (RGT) 16 9 mm² 3 x 3
  • 16-Bit Resolution
  • 14-Bit Linearity
  • ±250mV Input Range with Single +5V Supply
  • 1% Internal Reference Voltage
  • 1% Gain Error
  • Flexible Serial Interface with Four Different Modes
  • Implemented Twinned Binary Coding as Split-Phase or Manchester Coding for One-Line Interfacing
  • Operating Temperature Range:
    –40°C to +125°C
  • APPLICATIONS
    • Motor Control
    • Current Measurement
    • Industrial Process Control
    • Instrumentation
    • Smart Transmitters

All trademarks are the property of their respective owners.
  • 16-Bit Resolution
  • 14-Bit Linearity
  • ±250mV Input Range with Single +5V Supply
  • 1% Internal Reference Voltage
  • 1% Gain Error
  • Flexible Serial Interface with Four Different Modes
  • Implemented Twinned Binary Coding as Split-Phase or Manchester Coding for One-Line Interfacing
  • Operating Temperature Range:
    –40°C to +125°C
  • APPLICATIONS
    • Motor Control
    • Current Measurement
    • Industrial Process Control
    • Instrumentation
    • Smart Transmitters

All trademarks are the property of their respective owners.

The ADS1203 is a delta-sigma () modulator with a 95dB dynamic range, operating from a single +5V supply. The differential inputs are ideal for direct connection to transducers or low-level signals. With the appropriate digital filter and modulator rate, the device can be used to achieve 16-bit analog-to-digital (A/D) conversion with no missing codes. An effective resolution of 14 bits or SNR of 85dB (typical) can be maintained with a digital filter bandwidth of 40kHz at a modulator rate of 10MHz. The ADS1203 is designed for use in medium- to high-resolution measurement applications including current measurements, smart transmitters, and industrial process control. The ADS1203 is available in TSSOP-8 and QFN-16 (3x3) packages.

The ADS1203 is a delta-sigma () modulator with a 95dB dynamic range, operating from a single +5V supply. The differential inputs are ideal for direct connection to transducers or low-level signals. With the appropriate digital filter and modulator rate, the device can be used to achieve 16-bit analog-to-digital (A/D) conversion with no missing codes. An effective resolution of 14 bits or SNR of 85dB (typical) can be maintained with a digital filter bandwidth of 40kHz at a modulator rate of 10MHz. The ADS1203 is designed for use in medium- to high-resolution measurement applications including current measurements, smart transmitters, and industrial process control. The ADS1203 is available in TSSOP-8 and QFN-16 (3x3) packages.
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重要文件 類型 標題 格式選項 日期
* Data sheet Motor Control, Current Measurement, 1-Bit, 10MHz, 2nd-Order, Delta-Sig Modulator datasheet (Rev. C) 2008年 1月 9日
Application note QFN and SON PCB Attachment (Rev. C) PDF | HTML 2023年 12月 6日
Application note Digital Filter Types in Delta-Sigma ADCs (Rev. A) PDF | HTML 2023年 3月 29日
Analog Design Journal How delta-sigma ADCs work, Part 1 (Rev. A) 2016年 9月 19日
E-book Best of Baker's Best: Precision Data Converters -- Delta-Sigma ADCs 2015年 3月 19日
Analog Design Journal How delta-sigma ADCs work, Part 2 2011年 11月 9日
Application note Using the ADS1202 Reference Design 2003年 11月 19日
Application note Clock Divider Circuit for the ADS1202 in Mode 3 Operation 2003年 9月 15日
Application note Interfacing the ADS1202 Modltr With a Pulse Transformer in Galvanically Isolated 2003年 6月 2日
Application note Combining ADS1202 with FPGA Digital Filter for Current Msrmnt in Motor Cntrl App 2003年 4月 28日
Application note Choosing an Optocoupler for the ADS1202 Operating in Mode 1 2003年 2月 12日

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