Overview
The ADS7039-Q1 is an ultra-low-power, 10-bit, 2-MSPS (mega-samples per second) analog-to-digital converter (ADC) designed by Texas Instruments. This device is particularly suited for automotive and other space-constrained applications due to its miniature footprint and low power consumption. The ADS7039-Q1 features a successive-approximation register (SAR) architecture with an inherent sample-and-hold circuit, supporting a wide analog input voltage range defined by the AVDD supply voltage. It operates over a broad temperature range from –40°C to 125°C and is AEC-Q100 qualified, making it reliable for use in harsh environments.
Key Specifications
| Parameter | Minimum | Typical | Maximum | Unit |
|---|---|---|---|---|
| AVDD (Analog Supply Voltage) | 2.35 | 3.6 | V | |
| DVDD (Digital Supply Voltage) | 1.65 | 3.6 | V | |
| Operating Temperature Range | –40 | 125 | °C | |
| Resolution | 10-bit | |||
| Sampling Rate | 2 MSPS | |||
| Power Consumption at 2 MSPS | 1.2 mW | |||
| Power Consumption at 1 kSPS | <1 µW | |||
| SNR (Signal-to-Noise Ratio) | 61 dB | |||
| THD (Total Harmonic Distortion) | –75 dB | |||
| Package Type | 8-Pin VSSOP | |||
| Package Size | 2.30 mm × 2.00 mm |
Key Features
- Ultra-low power consumption: Less than 1 µW at 1 kSPS and 1.2 mW at 2 MSPS with 3-V AVDD.
- Miniature footprint: 8-Pin VSSOP package with dimensions of 2.30 mm × 2.00 mm.
- Wide operating range: AVDD from 2.35 V to 3.6 V and DVDD from 1.65 V to 3.6 V.
- Excellent performance: 10-bit resolution, ±0.4 LSB DNL and INL, 61-dB SNR, and –75-dB THD.
- Integrated offset calibration: Can be initiated on power-up or during normal operation.
- SPI-compatible serial interface: Supports up to 32 MHz SCLK.
- JESD8-7A compliant digital I/O.
- AEC-Q100 qualified with temperature grade 1: –40°C to 125°C.
- ESD protection: HBM ±2000 V and CDM ±1000 V.
Applications
- Automotive Infotainment
- Automotive Sensors
- Level Sensors
- Ultrasonic Flow Meters
- Motor Control
- Portable Medical Equipment
Q & A
- What is the resolution of the ADS7039-Q1 ADC?
The ADS7039-Q1 has a 10-bit resolution. - What is the maximum sampling rate of the ADS7039-Q1?
The maximum sampling rate is 2 MSPS. - What is the power consumption of the ADS7039-Q1 at 2 MSPS?
The power consumption is 1.2 mW at 2 MSPS with 3-V AVDD. - What is the operating temperature range of the ADS7039-Q1?
The operating temperature range is from –40°C to 125°C. - Does the ADS7039-Q1 support offset calibration?
Yes, the device includes an internal offset calibration feature that can be initiated on power-up or during normal operation. - What type of package does the ADS7039-Q1 come in?
The ADS7039-Q1 comes in an 8-Pin VSSOP package. - Is the ADS7039-Q1 AEC-Q100 qualified?
Yes, the device is AEC-Q100 qualified with temperature grade 1. - What is the SNR of the ADS7039-Q1?
The SNR is 61 dB with 3-V AVDD. - What is the THD of the ADS7039-Q1?
The THD is –75 dB with 3-V AVDD. - Does the ADS7039-Q1 have ESD protection?
Yes, it has HBM ±2000 V and CDM ±1000 V ESD protection.
