TI ADS130B04QPWRQ1

ADS130B04-Q1 is a four-channel, synchronous sampling, 16-bit, Δ-Σ ADC with wide dynamic range, low power consumption, and buffered analog inputs, ideally suited for automotive battery management systems (BMS). The ADC inputs can be connected directly to shunt resistors for bidirectional battery current measurement, to resistive voltage divider networks for high-voltage measurement, or to temperature sensors (e.g., thermistors or analog output temperature sensors). Individual ADC channels can be independently configured for each sensor input. A low-noise, programmable gain amplifier (PGA) provides gains from 1 to 128 to amplify low-level signals. The device employs a global chop mode to eliminate offset drift over temperature and time. The device integrates a low-drift 1.2V reference and a high-precision oscillator, reducing PCB area. Optional CRC in data input, data output, and register maps ensures communication integrity. The complete analog front end (AFE) is available in a 20-pin TSSOP package, rated for the automotive temperature range of –40°C to +125°C.

• AEC-Q100 qualified for automotive applications: Temperature Grade 1: -40°C to +125°C, TA
• Functional Safety capable
• Documentation available to aid functional safety system design
• 4 synchronous sampling differential input ADC
• Programmable data rate: up to 32kSPS
• Programmable gain: up to 128
• Global chop mode to remove offset drift over temperature and time
• High-impedance analog inputs for direct sensor connection
• Integrated negative charge pump enables input signal measurement below ground
• Channel-to-channel crosstalk: -120dB
• Low-drift internal reference: 1.2V
• Precision internal oscillator
• CRC for communication and register map
• Analog and digital supply: 2.7V to 3.6V
• Low power: 5mW at 3.3V AVDD and DVDD

• Automotive Battery Management Systems (BMS)
• Electric Vehicle Charging Stations
• Energy Storage Systems (ESS)