ADS7029-Q1 Ultra-Low-Power Ultra-Small-Size 8-Bit 2MSPS SAR ADC | TI.com

ADS7029-Q1 (ACTIVE)

Ultra-Low-Power Ultra-Small-Size 8-Bit 2MSPS SAR ADC

Ultra-Low-Power Ultra-Small-Size 8-Bit 2MSPS SAR ADC - ADS7029-Q1
 

Description

The ADS7029-Q1 device is a an automotive Q100-qualified, 8-bit, 2-MSPS, analog-to-digital converter (ADC). The device supports a wide analog input voltage range (2.35 V to 3.6 V) and includes a capacitor-based, successive-approximation register (SAR) ADC with an inherent sample-and-hold circuit. The SPI-compatible serial interface is controlled by the CS and SCLK signals. The input signal is sampled with the CS falling edge and SCLK is used for conversion and serial data output. The device supports a wide digital supply range (1.65 V to 3.6 V), enabling direct interface to a variety of host controllers. The ADS7029-Q1 complies with the JESD8-7A standard for a normal DVDD range (1.65 V to 1.95 V).

The ADS7029-Q1 is available in an 8-pin, miniature, VSSOP package and is specified for operation from –40°C to +125°C. The fast sampling rate of the ADS7029-Q1, along with miniature form-factor and low-power consumption, makes this device suitable for space-constrained and fast-scanning automotive applications.

Features

  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results:
    • Device Temperature Grade 1: –40°C to 125°C Ambient Operating Temperature Range
    • Device HBM ESD Classification Level ±2000 V
    • Device CDM ESD Classification Level ±1000 V
  • Ultra-Low Power Consumption:
    • 1.11 mW (max) at 2 MSPS with 3-V AVDD
    • Less Than 1 µW at 1 kSPS with 3-V AVDD
  • Miniature Footprint:
    • 8-Pin VSSOP Package: 2.30 mm × 2.00 mm
  • 2-MSPS Throughput with Zero Data Latency
  • Wide Operating Range:
    • AVDD: 2.35 V to 3.6 V
    • DVDD: 1.65 V to 3.6 V (Independent of AVDD)
    • Temperature Range: –40°C to +125°C
  • Excellent Performance:
    • 8-Bit Resolution with NMC
    • ±0.2 LSB DNL; ±0.25 LSB INL
    • 49-dB SNR with 3-V AVDD
    • –70-dB THD with 3-V AVDD
  • Unipolar Input Range: 0 V to AVDD
  • Integrated Offset Calibration
  • SPI-Compatible Serial Interface: 32 MHz
  • JESD8-7A Compliant Digital I/O

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

 
Resolution (Bits)
Sample Rate (Max) (kSPS)
# 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
Sample Rate (Max) (MSPS)
ADS7029-Q1 ADS7039-Q1 ADS7042 ADS7049-Q1 ADS7822-Q1
8     10     12     12     12    
2000     2000     1000     2000     200    
1     1     1     1     1    
SPI     SPI     SPI     SPI     Serial    
-40 to 125     -40 to 125     -40 to 125     -40 to 125     -40 to 85    
VSSOP     VSSOP     VSSOP
X2QFN    
VSSOP     VSSOP    
0.45 | 1ku     0.65 | 1ku     0.99 | 1ku     1.77 | 1ku     1.91 | 1ku    
0.555     0.6     0.234     1.14     0.6    
8VSSOP: 6 mm2: 3.1 x 2(VSSOP)     8VSSOP: 6 mm2: 3.1 x 2(VSSOP)     8VSSOP: 6 mm2: 3.1 x 2(VSSOP)
8X2QFN: 2 mm2: 1.5 x 1.5(X2QFN)    
8VSSOP: 6 mm2: 3.1 x 2(VSSOP)     8VSSOP: 15 mm2: 4.9 x 3(VSSOP)    
SAR     SAR     SAR     SAR     SAR    
Single-Ended     Single-Ended     Single-Ended     Single-Ended     Pseudo-Differential
Single-Ended    
N/A     N/A     N/A     N/A     N/A    
Supply     Supply     Supply     Supply     Ext    
N/A     N/A     N/A     N/A     N/A    
3.6     3.6     3.6     3.6     5.25    
0     0     0     0     0    
2.3     2.3     1.65     2.3     2.7    
3.6     3.6     3.6     3.6     5.25    
1.65     1.65     1.65     1.65     2.7    
3.6     3.6     3.6     3.6     5.25    
0.5     0.8     1     1     0.75    
49     61     69.5     69.6     71    
49     61     70     70     71    
-70     -75     -80     -80     -82    
Automotive     Automotive