- 制造厂商:TI
- 产品类别:数据转换器
- 技术类目:模数转换器 (ADC) - 精密模数转换器 (<=10MSPS)
- 功能描述:Automotive, two-channel, 24-bit, 64-kSPS, simultaneous-sampling, delta-sigma ADC
- 点击这里打开及下载ADS131M02-Q1的技术文档资料
- TI代理渠道,提供当日发货、严格的质量标准,满足您的目标价格
The ADS131M02-Q1 is a two-channel, simultaneously sampling, 24-bit, delta-sigma (ΔΣ), analog-to-digital converter (ADC) that offers wide dynamic range and low power, making the device designed for automotive battery management systems (BMS). The ADC inputs can be directly interfaced to shunt resistors for bidirectional battery-current measurements, to resistor-divider networks for high-voltage measurements, or to temperature sensors (such as thermistors or analog output temperature sensors).
The individual ADC channels can be independently configured depending on the sensor input. A low-noise, programmable gain amplifier (PGA) provides gains ranging from 1 to 128 to amplify low-level signals. Additionally, this device integrates channel-to-channel phase calibration and offset and gain calibration registers to help remove signal-chain errors.
A low-drift, 1.2-V reference is integrated into the device, reducing printed circuit board (PCB) area. Optional cyclic redundancy checks (CRCs) on the data input, data output, and register map maintain communication integrity.
The complete analog front-end (AFE) is offered in a 20-pin TSSOP package and is specified over 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
- 2 simultaneously sampling differential inputs
- Programmable data rate up to 64 kSPS
- Programmable gain up to 128
- Noise performance:
- 102-dB dynamic range at gain = 1, 4 kSPS
- 80-dB dynamic range at gain = 64, 4 kSPS
- Total harmonic distortion: –100 dB
- High-impedance inputs for direct sensor connection:
- 330-kΩ input impedance for gains of 1, 2, and 4
- ≥1-MΩ input impedance for gains of 8, 16, 32, 64, and 128
- Programmable channel-to-channel phase delay calibration:
- Resolution = 244 ns, fCLKIN = 8.192 MHz
- Fast start-up: First data within 0.5 ms of supply ramp
- Integrated negative charge pump allows input signals below ground
- Crosstalk between channels: –120 dB
- Low-drift internal voltage reference
- Cyclic redundancy check (CRC) on communications and register map
- Analog and digital supplies: 2.7 V to 3.6 V
- Low-power consumption: 2.3 mW at 3-V AVDD and DVDD
- Package: 20-pin TSSOP
- Resolution (Bits)
- 24
- Number of input channels
- 2
- Sample rate (Max) (kSPS)
- 64
- Interface type
- SPI
- Architecture
- Delta-Sigma
- Input type
- Differential, Single-Ended
- Multi-channel configuration
- Simultaneous Sampling
- Rating
- Automotive
- TI functional safety category
- Functional Safety-Capable
- Reference mode
- Int
- Input range (Max) (V)
- 3.6
- Input range (Min) (V)
- -1.3
- Features
- PGA, Small Size
- Operating temperature range (C)
- -40 to 125
- Power consumption (Typ) (mW)
- 1.95
- Analog voltage AVDD (Min) (V)
- 2.7
- SNR (dB)
- 100
- Analog voltage AVDD (Max) (V)
- 3.6
- Digital supply (Min) (V)
- 1.65
- Digital supply (Max) (V)
- 3.6
ADS131M02-Q1的完整型号有:ADS131M02QPWRQ1,以下是这些产品的关键参数及官网采购报价:
ADS131M02QPWRQ1,工作温度:-40 to 125,封装:TSSOP (PW)-20,包装数量MPQ:2000个,MSL 等级/回流焊峰值温度:Level-3-260C-168 HR,引脚镀层/焊球材料:NIPDAU,TI官网ADS131M02QPWRQ1的批量USD价格:1.697(1000+)
ADS131M04EVM — 汽车类四通道、24 位、64kSPS、同步采样 Δ-Σ ADC
ADS131M04 评估模块 (EVM) 是一款用于评估 ADS131M04 的平台,ADS131M04 是一款低功耗同步采样 Δ-Σ 模数转换器 (ADC)。
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