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ISL73148SEH

更新时间： 2024-11-22 14:57:39
品牌 Logo 应用领域
瑞萨 - RENESAS /
页数 文件大小 规格书
59页 2613K
描述
Radiation Hardened 8-Channel 14-Bit 900/480ksps SAR ADC

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Datasheet  
ISL73148SEH  
Radiation Hardened 8-Channel 14-Bit 900/480ksps SAR ADC  
The ISL73148SEH is a radiation hardened 8-channel  
high precision 14-bit, 900/480ksps SAR  
Features  
▪ 8 Buffered analog input channels with multiplexer  
▪ Bypassable PGA with selectable gain (1 ≤ G ≤ 16)  
▪ Pseudo-differential bipolar and unipolar operation  
▪ Channel scan sequencer  
Analog-to-Digital Converter (ADC). The ADC core is  
preceded by eight analog input channels followed by  
a buffered 8-to-1 multiplexer and a PGA  
(Programmable Gain Amplifier). The device features  
a peak SNR of 82dBFS when operating at 900ksps.  
With the PGA enabled, sampling rates up to 480ksps  
are supported. The PGA can be bypassed so that the  
sample rate increases to 900ksps.  
▪ Full throughput rate with no data latency  
▪ Excellent linearity: ±0.5 LSB DNL, ±1.5 LSB INL  
▪ Low noise: 83dBFS (PGA bypassed), 77dBFS  
SNR (PGA Gain = 2)  
The product features 900/480ksps throughput with no  
data latency. The device also features excellent  
linearity and dynamic accuracy. The ISL73148SEH  
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.  
▪ 5V AVCC supply and 2.5V/3.3V DVCC supply  
▪ Analog input impedance: >1GΩ, 3pF  
▪ 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  
The ISL73148SEH offers a separate low power mode  
(LPM) pin that reduces power dissipation at lower  
sample rates. The analog input signal range is  
determined by an external reference with a supported  
input range of 2.4V to 2.6V.  
▪ Radiation acceptance testing  
• LDR (0.01rad(Si)/s): 75krad(Si)  
▪ SEE hardness (see SEE report for details)  
The ISL73148SEH operates across the military  
temperature range from -55°C to +125°C and is  
available in a 28 Ld hermetically sealed Ceramic Dual  
Flat-Pack (CDFP) package.  
• No SEB/SEL LETTH (AVCC = 6.4V):  
86MeV•cm2/mg  
• No SEFIs at LET 86MeV•cm2/mg  
▪ Qualified to Renesas Rad Hard QML-V Equivalent  
Screening and QCI Flow (R34TB0001EU)  
Applications  
▪ Precision signal processing in satellite payloads  
• All screening and QCI is in accordance with  
▪ Satellite telemetry systems  
MIL-PRF-38535L Class-V  
▪ Satellite propulsion and orbit control  
▪ Attitude control of satellites  
▪ High-end industrial and down-hole drilling  
0
1.00  
0.75  
0.50  
0.25  
0.00  
-0.25  
-0.50  
AIN = -1dBFS  
-20  
SNR = 77dBFS  
SINAD = 76.79dBFS  
-40  
SFDR = -104dBFS  
THD = -91dBFS  
-60  
-80  
-100  
-120  
-140  
-160  
Frequency (kHz)  
Output Code  
Figure 2. FFT - 20.3kHz  
Figure 1. INL vs Output Code  
R34DS0023EU0104 Rev.1.04  
Apr 20, 2023  
Page 1  
© 2022-2023 Renesas Electronics  
1234567...59

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