ADC124S021 4 Channel, 50 ksps to 200 kSPS, 12-Bit A/D Converter | TI.com

ADC124S021
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4 Channel, 50 ksps to 200 kSPS, 12-Bit A/D Converter

 

Description

The ADC124S021 is a low-power, four-channel CMOS 12-bit analog-to-digital converter with a high-speed serial interface. Unlike the conventional practice of specifying performance at a single sample rate only, the ADC124S021 is fully specified over a sample rate range of 50 ksps to 200 ksps. The converter is based on a successive-approximation register architecture with an internal track-and-hold circuit. It can be configured to accept up to four input signals at inputs IN1 through IN4.

The output serial data is straight binary, and is compatible with several standards, such as SPI™, QSPI™, MICROWIRE, and many common DSP serial interfaces.

The ADC124S021 operates with a single supply that can range from +2.7V to +5.25V. Normal power consumption using a +3V or +5V supply is 2.2 mW and 7.9 mW, respectively. The power-down feature reduces the power consumption to just 0.14 µW using a +3V supply, or 0.32 µW using a +5V supply.

The ADC124S021 is packaged in a 10-lead VSSOP package. Operation over the industrial temperature range of −40°C to +85°C is ensured.

Features

  • Specified Over a Range of Sample Rates.
  • Four Input Channels
  • Variable Power Management
  • Single Power Supply with 2.7V - 5.25V Range

Key Specifications

  • DNL: +0.4 / −0.2 LSB (typ)
  • INL: ± 0.35 LSB (typ)
  • SNR: 72.0 dB (typ)
  • Power Consumption
    • 3V Supply: 2.2 mW (typ)
    • 5V Supply: 7.9 mW (typ)

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Parametrics

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Part number Order 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
ADC124S021 Order now 12     200     4     Microwire (Serial I/O)
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-40 to 85     VSSOP | 10     1.71 | 1ku     2.2     10VSSOP: 9 mm2: 3 x 3 (VSSOP | 10)     SAR     Single-Ended     Multiplexed     Supply         5.25     0     2.7     5.25     2.7     5.25     1.1     72     -84     Catalog    
ADC084S021 Order now 8     200     4     Microwire (Serial I/O)
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-40 to 85     VSSOP | 10     1.00 | 1ku     1.6     10VSSOP: 9 mm2: 3 x 3 (VSSOP | 10)     SAR     Single-Ended     Multiplexed     Supply         5.25     0     2.7     5.25     2.7     5.25     0.2     49.6     -76     Catalog    
ADC104S021 Order now 10     200     4     Microwire (Serial I/O)
QSPI
SPI    
-40 to 85     VSSOP | 10     1.38 | 1ku     1.94     10VSSOP: 9 mm2: 3 x 3 (VSSOP | 10)     SAR     Single-Ended     Multiplexed     Supply         5.25     0     2.7     5.25     2.7     5.25     0.4     61.8     -86     Catalog    
ADC124S051 Order now 12     500     4     Microwire (Serial I/O)
QSPI
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-40 to 85     VSSOP | 10     1.85 | 1ku