ADS7826 5.25V-2.7V, 10 bit, 200KSPS, Synchronous Serial ADC | TI.com

ADS7826 (ACTIVE)

5.25V-2.7V, 10 bit, 200KSPS, Synchronous Serial ADC

 

Description

The ADS7826/27/29 is a family of 10/8/12-bit sampling analog-to-digital converters (A/D) with assured specifications at 2.7-V supply voltage. It requires very little power even when operating at the full sample rate. At lower conversion rates, the high speed of the device enables it to spend most of its time in the power down mode—the power dissipation is less than 60 µW at 7.5 kHz.

The ADS7826/27/29 also features operation from 2.0 V to 5 V, a synchronous serial interface, and a differential input. The reference voltage can be set to any level within the range of 50 mV to VCC.

Ultra-low power and small package size make the ADS7826/27/29 family ideal for battery operated systems. It is also a perfect fit for remote data acquisition modules, simultaneous multichannel systems, and isolated data acquisition. The ADS7826/27/29 family is available in a 3 x 3 8-pin PDSO (SON, same size as QFN) package.

Features

  • High Throughput at Low Supply Voltage (2.7 V VCC)
    • ADS7829: 12-bit 125 KSPS
    • ADS7826: 10-bit 200 KSPS
    • ADS7827: 8-bit 250 KSPS
  • Very Wide Operating Supply VoltageL: 2.7 V to 5.25 V (as Low as 2.0 V With Reduced Performance)
  • Rail-to-Rail, Pseudo Differential Input
  • Wide Reference Voltage: 50 mV to VCC
  • Micropower Auto Power-Down:
    • Less Than 60 µW at 75 kHz, 2.7 V VCC
  • Low Power Down Current: 3 µA Max
  • Ultra Small Chip Scale Package: 8-pin 3 x 3 PDSO (SON, Same Size as QFN)
  • SPI™ Compatible Serial Interface
  • APPLICATIONS
    • Battery Operated Systems
    • Remote Data Acquisition
    • Isolated Data Acquisition
    • Simultaneous Sampling, Multichannel Systems

microPOWER is a trademark of Texas Instruments.

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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
ADS7826 ADS1286 ADS7816 ADS7817 ADS7822 ADS7822-Q1 ADS7827 ADS7829
10     12     12     12     12     12     8     12    
200     20     200     200     200     200     250     125    
1     1     1     1     1     1     1     1    
SPI     SPI     Serial     Serial     Serial     Serial     I2C     SPI    
-40 to 85     -40 to 85     -40 to 85     -40 to 85     -40 to 85     -40 to 85     -40 to 85     -40 to 85    
SON | 8     SOIC | 8     SOIC | 8
VSSOP | 8    
SOIC | 8
VSSOP | 8    
SOIC | 8
VSSOP | 8    
VSSOP | 8     SON | 8     SON | 8    
1.68 | 1ku     2.94 | 1ku     2.31 | 1ku     2.05 | 1ku     1.63 | 1ku     1.91 | 1ku     1.00 | 1ku     1.50 | 1ku    
0.8     1.25     1.9     2.3     1.6     0.6     0.6     0.6    
See datasheet (SON)     8SOIC: 19 mm2: 3.91 x 4.9 (SOIC | 8)     8SOIC: 19 mm2: 3.91 x 4.9 (SOIC | 8)
8VSSOP: 15 mm2: 4.9 x 3 (VSSOP | 8)    
8SOIC: 19 mm2: 3.91 x 4.9 (SOIC | 8)
8VSSOP: 15 mm2: 4.9 x 3 (VSSOP | 8)    
8SOIC: 19 mm2: 3.91 x 4.9 (SOIC | 8)
8VSSOP: 15 mm2: 4.9 x 3 (VSSOP | 8)    
8VSSOP: 15 mm2: 4.9 x 3 (VSSOP | 8)     See datasheet (SON)     See datasheet (SON)    
SAR     SAR     SAR     SAR     SAR     SAR     SAR     SAR    
Pseudo-Differential
Single-Ended    
Differential     Pseudo-Differential
Single-Ended    
Pseudo-Differential
Single-Ended    
Pseudo-Differential
Single-Ended    
Pseudo-Differential
Single-Ended    
Pseudo-Differential
Single-Ended    
Pseudo-Differential
Single-Ended    
   
   
   
   
   
   
   
   
Ext     Ext     Ext     Ext     Ext     Ext     Ext     Ext    
   
   
   
   
   
   
   
   
5.25