ADC082S051 2 Channel, 200 ksps to 500 ksps, 8-Bit A/D Converter | TI.com

ADC082S051 (ACTIVE)

2 Channel, 200 ksps to 500 ksps, 8-Bit A/D Converter

 

Description

The ADC082S051 is a low-power, two-channel CMOS 8-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 ADC082S051 is fully specified over a sample rate range of 200 ksps to 500 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 ADC082S051 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 7.1 mW, respectively. The power-down feature reduces the power consumption to just 0.12 µW using a +3V supply, or 0.35 µW using a +5V supply.

The ADC082S051 is packaged in an 8-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
  • Two Input Channels
  • Variable Power Management
  • Single Power Supply with 2.7V - 5.25V Range

Key Specifications

  • DNL: ±0.09 LSB (Typ)
  • INL: + 0.12/−0.062 LSB (Typ)
  • SNR: 49.5 dB (Typ)
  • Power Consumption:
    • 3V Supply: 2.2 mW (Typ)
    • 5V Supply 7.1 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
ADC082S051 ADC082S021 ADC082S101 ADC102S051 ADC122S051
8     8     8     10     12    
500     200     1000     500     500    
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    
1.13 | 1ku     0.83 | 1ku     1.26 | 1ku     1.80 | 1ku     1.57 | 1ku    
2.2     1.6     3.2     2.7     3    
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     0.4     0.6     1.1    
49.5     49.6     49.6     61.7     72