ADC102S021 2 Channel, 50 ksps to 200 ksps, 10-Bit A/D Converter | TI.com

ADC102S021 (ACTIVE)

2 Channel, 50 ksps to 200 ksps, 10-Bit A/D Converter

 

Description

The ADC102S021 is a low-power, two-channel CMOS 10-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 ADC102S021 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 one or two input signals at inputs IN1 and IN2.

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 ADC102S021 operates with a single supply that can range from +2.7V to +5.25V. Normal power consumption using a +3V or +5V supply is 1.94 mW and 6.9 mW, respectively. The power-down feature reduces the power consumption to just 0.12 µW using a +3V supply, or 0.47 µW using a +5V supply.

The ADC102S021 is packaged in an 8-lead VSSOP package. Operation is specified over the industrial temperature range of −40°C to +85°C.

Features

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

KEy Specifications

  • DNL: ± 0.13 LSB (typ)
  • INL: ± 0.13 LSB (typ)
  • SNR: 61.8 dB (typ)
  • Power Consumption
    • 3V Supply: 1.94mW (typ)
    • 5V Supply: 6.9 mW (typ)

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Parametrics Compare all products in Precision ADCs (<=10MSPS)

 
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)
SINAD (dB)
SNR (dB)
THD (Typ) (dB)
Rating
ADC102S021 ADC082S021 ADC102S051 ADC102S101 ADC122S021
10     8     10     10     12    
200     200     500     1000     200    
2     2     2     2     2    
Microwire (Serial I/O)
QSPI
SPI    
Microwire (Serial I/O)
QSPI
SPI    
Microwire (Serial I/O)
QSPI
SPI    
Microwire (Serial I/O)
QSPI
SPI    
Microwire (Serial I/O)
QSPI
SPI    
-40 to 85     -40 to 85     -40 to 85     -40 to 85     -40 to 85    
VSSOP | 8     VSSOP | 8     VSSOP | 8     VSSOP | 8     VSSOP | 8    
1.14 | 1ku     0.83 | 1ku     1.80 | 1ku     2.04 | 1ku     1.38 | 1ku    
1.94     1.6     2.7     3.9     2.2    
8VSSOP: 15 mm2: 4.9 x 3 (VSSOP | 8)     8VSSOP: 15 mm2: 4.9 x 3 (VSSOP | 8)     8VSSOP: 15 mm2: 4.9 x 3 (VSSOP | 8)     8VSSOP: 15 mm2: 4.9 x 3 (VSSOP | 8)     8VSSOP: 15 mm2: 4.9 x 3 (VSSOP | 8)    
SAR     SAR     SAR     SAR     SAR    
Single-Ended     Single-Ended     Single-Ended     Single-Ended     Single-Ended    
Multiplexed     Multiplexed     Multiplexed     Multiplexed     Multiplexed    
Supply     Supply     Supply     Supply     Supply    
   
   
   
   
   
5.25     5.25     5.25     5.25     5.25    
0     0     0     0     0    
2.7     2.7     2.7     2.7     2.7    
5.25     5.25     5.25     5.25     5.25    
2.7     2.7     2.7     2.7     2.7    
5.25     5.25     5.25     5.25     5.25    
0.4     0.2     0.6     0.7     1.1    
61.8     49.6     61.7     61.6     72