Texas Instruments

Category: Data Converters

The ADS7046 device belongs to a family of pin-to-pin compatible, high-speed, low-power, single-channel successive-approximation register (SAR) type analog-to-digital converters (ADCs). The device family includes multiple resolutions, throughputs, and analog input variants (see Table 1 for a list of devices).

The ADS7046 is a 12-bit, 3-MSPS SAR ADC that supports a single-ended input in the range of 0 V to AVDD, for AVDD in the range of 2.35 V to 3.6 V.

The internal offset calibration feature maintains excellent offset specifications over the entire AVDD and temperature operating range.

The device supports an SPI-compatible serial interface that is controlled by the CS and SCLK signals. The input signal is sampled with the CS falling edge and SCLK is used for both conversion and serial data output. The device supports a wide digital supply range (1.65 V to 3.6 V), enabling direct interfacing to a variety of host controllers. The ADS7046 complies with the JESD8-7A standard for a normal DVDD range (1.65 V to 1.95 V).

The ADS7046 is available in an 8-pin, small, X2QFN package and is specified over the extended industrial temperature range (–40°C to +125°C). The small form-factor and extremely-low power consumption make this device suitable for space-constrained and battery-powered applications that require high-speed, high-resolution data acquisition.

Features:

  • 3-MSPS Throughput
  • Small Package Size:
    • X2QFN-8 Package (1.5 mm × 1.5 mm)
  • Unipolar Input Range: 0 V to AVDD
  • 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:
    • 12-Bit NMC DNL, ±0.3-LSB INL
    • 71.2-dB SINAD at 2 kHz
    • 69.5-dB SINAD at 1 MHz
  • Low Power Consumption:
    • 3.8 mW at 3 MSPS With 3.3-V AVDD
    • 115 µW at 100 kSPS With 3.3-V AVDD
    • 67 µW at 100 kSPS With 2.5-V AVDD
  • Integrated Offset Calibration
  • SPI-Compatible Serial Interface: 60 MHz
  • JESD8-7A Compliant Digital I/O

$2.10 - $6.33
Distributor SKU Stock MOQ 1 10 50 100 1000 10000 Purchase
DigiKey 296-48818-1-ND 2883 1 $4.41 $3.35 $3.08 $2.79 $2.50 $2.41 Buy
Arrow North American Components ADS7046IRUGR 0 3000 $2.18 Buy
AVNET Asia Pacific ADS7046IRUGR 3000 Buy
AVNET Europe ADS7046IRUGR 3000 * $2.52 Buy
AVNET Express ADS7046IRUGR 3000 $2.08 Buy
element14 APAC ADS7046IRUGR 1856 1 * $4.90 * $4.40 * $4.17 * $4.08 * $4.08 * $4.08 Buy
Farnell ADS7046IRUGR 1856 10 * $4.20 * $3.70 * $3.44 * $3.44 * $3.44 Buy
Mouser Electronics 595-ADS7046IRUGR 16231 1 $3.38 $2.47 $2.47 $2.27 $2.14 $2.07 Buy
Newark ADS7046IRUGR 1856 1 $4.77 $4.48 $4.04 $3.83 $3.83 $3.83 Buy
Perceptive ADS7046IRUGR 48300 1+ Buy
Texas Instruments ADS7046IRUGR 286111 1 $3.00 $3.00 $3.00 $2.63 $1.49 $1.49 Buy
Win Source ADS7046IRUGR 5090 22 Buy

Technical Specifications

Lead Free Status No
ROHS Compliance Compliant
# Input Channels 1
Analog Voltage AVDD(Max)(V) 3.6
Analog Voltage AVDD(Min)(V) 2.35
Architecture SAR
Digital Supply(Max)(V) 3.6
Digital Supply(Min)(V) 1.65
Features N/A
INL(Max)(+/-LSB) 1
Input Range(Max)(V) 3.6
Input Range(Min)(V) 0
Input Type Single-Ended
Interface SPI
Multi-Channel Configuration N/A
Operating Temperature Range(C) -40 to 125
Package Group X2QFN
Package Size mm2
Power Consumption(Typ)(mW) 3.8
Rating Catalog
Reference Mode Supply
Resolution(Bits) 12
SINAD(dB) 71.1
SNR(dB) 71.2
Sample Rate (max)(SPS) 3000000
Sample Rate(Max)(MSPS) 3
THD(Typ)(dB) -86