Overview
The ADS1114IDGSR is a precision, low-power, 16-bit analog-to-digital converter (ADC) from Texas Instruments. It is part of the ADS111x family, which includes the ADS1113, ADS1114, and ADS1115. The ADS1114IDGSR is designed for power- and space-constrained sensor measurement applications. It features an ultra-small package, specifically the X2QFN-10 or SOT-10, making it ideal for compact designs. The device incorporates a low-drift voltage reference, an internal oscillator, and an I2C interface, along with a programmable gain amplifier (PGA) and a digital comparator.
Key Specifications
| Parameter | Test Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Resolution | 16 | Bits | |||
| Data Rate | 8, 16, 32, 64, 128, 250, 475, 860 | SPS | |||
| Supply Voltage | 2.0 | 5.5 | V | ||
| Supply Current | Continuous-conversion mode | 150 | 300 | μA | |
| Operating Temperature | -40 | 125 | °C | ||
| Integral Nonlinearity (INL) | DR = 8SPS, FSR = ±2.048V | 1 | LSB | ||
| Offset Error | FSR = ±2.048V, differential inputs | -3 | ±1 | 3 | LSB |
| Gain Error | FSR = ±2.048V, TA = 25°C | 0.01% | 0.15% |
Key Features
- Ultra-small packages: X2QFN (2mm × 1.5mm × 0.4mm) and SOT (2.9mm × 2.8mm × 0.6mm).
- Wide supply range: 2.0V to 5.5V.
- Low current consumption: 150μA in continuous-conversion mode.
- Programmable data rate: 8SPS to 860SPS.
- Internal low-drift voltage reference and internal oscillator.
- I2C interface with four pin-selectable addresses.
- Programmable gain amplifier (PGA) and digital comparator.
- Single-cycle settling and high common-mode rejection ratio (CMRR).
Applications
- Portable instrumentation.
- Battery voltage and current monitoring.
- Temperature measurement systems.
- Consumer electronics.
- Factory automation and process control).
Q & A
- What is the resolution of the ADS1114IDGSR?
The resolution of the ADS1114IDGSR is 16 bits).
- What are the available data rates for the ADS1114IDGSR?
The data rates range from 8 SPS to 860 SPS).
- What is the supply voltage range for the ADS1114IDGSR?
The supply voltage range is from 2.0V to 5.5V).
- What is the typical supply current in continuous-conversion mode?
The typical supply current is 150μA in continuous-conversion mode).
- What are the key features of the ADS1114IDGSR package?
The package is ultra-small, available in X2QFN and SOT formats, and includes an internal low-drift voltage reference, an internal oscillator, and an I2C interface).
- Does the ADS1114IDGSR have a programmable gain amplifier (PGA)?
- What is the operating temperature range of the ADS1114IDGSR?
The operating temperature range is from -40°C to +125°C).
- What are some common applications for the ADS1114IDGSR?
- Does the ADS1114IDGSR have a digital comparator?
- How many pin-selectable addresses are available for the I2C interface?
