Overview
The ADS130B04-Q1 is a four-channel, simultaneous-sampling, 16-bit, delta-sigma (ΔΣ) analog-to-digital converter (ADC) designed by Texas Instruments. This device is optimized for automotive applications, particularly in battery management systems (BMS), due to its wide dynamic range, low power consumption, and high accuracy. The ADC features buffered analog inputs, a low-drift internal reference voltage, and a precision internal oscillator. It is AEC-Q100 qualified with a temperature grade 1 rating, operating from -40°C to +125°C, and is functional safety-capable with available documentation to aid in system design.
Key Specifications
| Parameter | Specification |
|---|---|
| Number of Channels | 4 |
| Resolution | 16-bit |
| Sampling Rate | Up to 32 kSPS |
| Programmable Gain | Up to 128 |
| Analog Supply Voltage | 2.7 V to 3.6 V |
| Digital Supply Voltage | 2.7 V to 3.6 V |
| Internal Reference Voltage | 1.2 V |
| Power Consumption | 5 mW at 3.3 V |
| Package Type | 20-pin TSSOP |
| Operating Temperature | -40°C to +125°C |
Key Features
- Simultaneous sampling of four differential input channels
- Programmable data rate up to 32 kSPS and programmable gain up to 128
- Global-chop mode to remove offset drift over temperature and time
- High-impedance analog inputs and low-drift internal reference voltage
- Precision internal oscillator and optional cyclic redundancy checks (CRCs) on communications and register map
- Integrated negative charge pump allowing input voltages below AGND with a unipolar supply
- Low power consumption with three power-scaling modes
- Functional safety-capable with documentation available for system design
- AEC-Q100 qualified for automotive applications
Applications
- Automotive battery management systems (BMS)
- Current-shunt measurements
- Voltage measurements using external resistor dividers
- Temperature measurements using thermistors or analog output temperature sensors
- Energy storage systems (ESS)
- DC e-metering
Q & A
- What is the resolution of the ADS130B04-Q1 ADC?
The ADS130B04-Q1 has a resolution of 16 bits.
- What is the maximum sampling rate of the ADS130B04-Q1?
The maximum sampling rate is up to 32 kSPS.
- What is the range of the programmable gain in the ADS130B04-Q1?
The programmable gain ranges from 1 to 128.
- What is the operating voltage range for the analog and digital supplies of the ADS130B04-Q1?
The operating voltage range for both analog and digital supplies is 2.7 V to 3.6 V.
- What is the internal reference voltage of the ADS130B04-Q1?
The internal reference voltage is 1.2 V.
- How does the global-chop mode function in the ADS130B04-Q1?
The global-chop mode removes offset drift over temperature and time.
- What is the package type of the ADS130B04-Q1?
The device is packaged in a 20-pin TSSOP.
- What are the key applications of the ADS130B04-Q1?
Key applications include automotive battery management systems, current-shunt measurements, voltage measurements, temperature measurements, energy storage systems, and DC e-metering.
- Is the ADS130B04-Q1 qualified for automotive use?
Yes, it is AEC-Q100 qualified with a temperature grade 1 rating.
- How does the device handle input voltages below AGND?
The device features an integrated negative charge pump that allows for input voltages below AGND with a unipolar supply.
