Texas Instruments ADS7040
The ADS7040 is a 8-bit, 1-MSPS, analog-to-digital converter (ADC). The device supports a wide analog input voltage range (1.65 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.| Part No. | ADS7040 |
|---|---|
| Datasheet | ADS7040 Download |
| Manufacturer |  Texas Instruments |
| Description | 8-Bit 1-MSPS SAR ADC |
| Buy | Stock & Price |
FEATURES
●1 Industry's First SAR ADC with Nanowatt Power Consumption: – 171 µW at 1 MSPS with 1.8-V AVDD – 555 µW at 1 MSPS with 3-V AVDD – 56 µW at 100 kSPS with 3-V AVDD – Less than 1 µW at 1 kSPS with 3-V AVDD● Industry's Smallest SAR ADC: – X2QFN-8 Package with 2.25-mm2 Footprint
● 1-MSPS Throughput with Zero Data Latency
● Wide Operating Range: – AVDD: 1.65 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 – ±0.5-LSB (Max) INL, ±0.4-LSB (Max) DNL – 49 dB SNR – –70-dB THD
● Unipolar Input Range: 0 V to AVDD
● Integrated Offset Calibration
● SPI™-Compatible Serial Interface: 12 MHz
● JESD8-7A Compliant Digital I/O 2
APPLICATIONS
● Low-Power Data Acquisition● Battery-Powered Handheld Equipment
● Level Sensors
● Ultrasonic Flow Meters
● Motor Control
● Wearable Fitness
● Portable Medical Equipment
● Hard Drives
● Glucose Meters 3
DESCRIPTION
The input signal is sampled with the CS falling edge and SCLK is used for conversion and serial data output.
