AD7262BSTZ: 1 MSPS, 12-Bit, Simultaneous Sampling SAR ADC with PGA and Four Comparators
The AD7262/AD7262-5 are dual, 12-bit, high speed, low power, successive approximation ADCs that operate from a single 5 V power supply. The AD7262 features throughput rates of up to 1 MSPS per on-chip ADC. The AD7262-5 features throughput rates of up to 500 kSPS. Two complete ADC functions allow simultaneous sampling and conversion of two channels. Each ADC is preceded by a true differential analog input with a PGA. There are 14 gain settings available: ×1, ×2, ×3, ×4, ×6, ×8, ×12, ×16, ×24, ×32, ×48, ×64, ×96, and ×128.
The AD7262/AD7262-5 contain four comparators. Comparator A and Comparator B are optimized for low power, while Compara-tor C and Comparator D have fast propagation delays. The AD7262/AD7262-5 feature a calibration function to remove any device offset error and programmable gain adjust registers to allow for input path (for example, sensor) offset and gain compensation. The AD7262/AD7262-5 have an on-chip 2.5 V reference that can be disabled if an external reference is preferred.
The AD7262/AD7262-5 are ideally suited for monitoring small amplitude signals from a variety of sensors. They include all the functionality needed for monitoring the position feedback signals from a variety of analog encoders used in motor control systems.
产品焦点 Product Highlights
- Integrated PGA with a variety of flexible gain settings to allow detection and conversion of low level analog signals.
- Each PGA is followed by a dual simultaneous sampling ADC, featuring throughput rates of 1 MSPS per ADC for the AD7262. The conversion results of both ADCs are simultaneously available on separate data lines or in succes-sion on one data line if only one serial port is available.
- Four integrated comparators that can be used to count signals from pole sensors in motor control applications.
- Internal 2.5 V reference.
AD7262BSTZ 特点
- Dual simultaneous sampling 12-bit, 2-channel ADC
- True differential analog inputs
- Programmable gain stage:
×1, ×2, ×3, ×4, ×6, ×8, ×12, ×16, ×24, ×32, ×48, ×64, ×96, ×128 - Throughput rate per ADC
1 MSPS for AD7262
500 kSPS for AD7262-5 - Analog input impedance: >1 GΩ
- Wide input bandwidth
−3 dB bandwidth: 1.7 MHz at gain = 2 - 4 on-chip comparators
- Please see data sheet for additional features
AD7262BSTZ 功能框图
| 产品型号 | 产品状态 | 封装 | 引脚 | 温度范围 |
|---|---|---|---|---|
| AD7262BCPZ | 量产 | 48 ld LFCSP 7x7mm (5.25EP) | 48 | 工业 |
| AD7262BCPZ-5 | 量产 | 48 ld LFCSP 7x7mm (5.25EP) | 48 | 工业 |
| AD7262BCPZ-5-RL7 | 量产 | 48 ld LFCSP 7x7mm (5.25EP) | 48 | 工业 |
| AD7262BCPZ-RL7 | 量产 | 48 ld LFCSP 7x7mm (5.25EP) | 48 | 工业 |
| AD7262BSTZ | 量产 | 48 ld LQFP | 48 | 工业 |
| AD7262BSTZ-5 | 量产 | 48 ld LQFP | 48 | 工业 |
| AD7262BSTZ-5-RL7 | 量产 | 48 ld LQFP | 48 | 工业 |
| AD7262BSTZ-RL7 | 量产 | 48 ld LQFP | 48 | 工业 |
| EVAL-AD7262EDZ | 量产 | 评估板 | - | 待定 |
AD7262BSTZ 应用技术支持与电子电路设计开发资源下载
- AD9201 数据手册DataSheet下载 . pdf
- Analog Devices, Inc.ADI 美国模拟器件公司产品订购手册 .pdf
- ADC模数转换器选型指南 . pdf
