概览
描述
The ISL71148SLH is a radiation hardened 8-channel high precision 14-bit, 900/480ksps SAR analog-to-digital converter (ADC). The ADC core is preceded by eight fully differential analog input channels, a buffered 8-to-1 multiplexer, and a programmable gain amplifier (PGA). The device features a peak SNR of 83.2dBFS when operating at 900ksps. With the PGA enabled, sampling rates up to 480ksps are supported. The PGA can be bypassed to increase the sample rate to 900ksps.
The product features 900/480ksps throughput with no data latency, excellent linearity, and dynamic accuracy. The ISL71148SLH offers a high-speed SPI-compatible serial interface that supports logic ranging from 2.2V to 3.6V using a separate digital I/O supply pin. The device is available in a 48-lead thin quad flat-pack (TQFP) space plastic.
The ISL71148SLH offers a separate low-power mode (LPM) pin that reduces power dissipation at lower sample rates. An external reference with a supported input range of 2.4V to 2.6V determines the analog input signal range.
特性
- Qualified to Renesas Rad Hard QML-P Equivalent Screening and QCI Flow (Technical Brief)
- All screening and QCI is in accordance with MIL-PRF-38535 Class-P
- 8 buffered differential analog input channels with multiplexer
- Bypassable PGA with selectable gain (1 ≤ G ≤ 16)
- Fully differential bipolar operation
- Channel scan sequencer
- Full throughput rate with no data latency
- Excellent linearity: ±0.2 LSB DNL, ±0.4 LSB INL
- Low noise: 83.2dBFS (PGA bypassed), 77dBFS SNR (PGA Gain = 2)
- 5V AVCC supply and 2.5V/3.3V DVCC supply
- Analog input impedance: >1GΩ, <5pF
- Wide 50MHz -3dB input bandwidth
- Low power mode operation at lower sample rates
- High-speed SPI-compatible serial I/O
- Full military temperature range operation TA = -55 °C to +125 °C
- TID Rad Hard Assurance (RHA) testing
- LDR (≤10mrad(Si)/s): 75krad(Si)
- SEE Characterization
- No DSEE for AVCC = 6.2V, DVCC = 4.6V, and VREF = 3.6V at 86MeV•cm2/mg
- SEFI <3.1μm2 at 86MeV•cm2/mg
产品对比
应用
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| 类型 | 文档标题 | 日期 |
| 数据手册 | PDF 2.22 MB | |
| 报告 | PDF 478 KB | |
| 报告 | PDF 907 KB | |
| 应用说明 | PDF 514 KB | |
| 应用说明 | PDF 1.47 MB | |
| 白皮书 | PDF 533 KB | |
| 应用说明 | PDF 224 KB | |
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设计和开发
软件与工具
开发板与套件
评估
耐辐射 8 通道 SAR ADC 评估板
ISL71148MNZEV1Z 板可用来评估 ISL71148M 耐辐射 8 通道高精度 14 位 900ksps/480ksps SAR ADC 的运行情况。 该评估板可与 RHADC-FMCEV1Z 数据采集板配合使用。
评估板上的 ISL71148M 器件支持在 AVCC 设置为 5V 时运行 ISL71148M。 DVCC 可设置为 2.5V 或 3.3V（默认设置为 2.5V）。 ADC 的基准电压设置为 2.5V。 复杂可编程逻辑器件（CPLD）的数字 I/O 电压也可设置为 2.5V 或 3.3V，但要与 ISL71148M 的 DVCC 设置相匹配。 默认情况下，CPLD...
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参考设计
Voltage Monitor Reference Design for AMD Versal XQRVE2302
The ISL71148VMREFEV1Z is a high-resolution voltage monitor reference design optimized to support the XQRVE2302, AMD’s Versal AI Edge Adaptive SoC. Powering the XQRVE2302 requires numerous power rails, each requiring specific DC and AC regulation tolerances. The ISL71148VMREFEV1Z voltage monitor...
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