Overview
Description
The ISL70100M is a radiation tolerant 40V current sense amplifier built on the Renesas proprietary PR40 Silicon-on-Insulator (SOI) process. The device has a wide power supply range of 2.7V to 40V. The input common-mode voltage is independent of the supply voltage and extends from -0.3V to 40.0V, making it ideal to use in both high-side and low-side applications.
The ISL70100M is a transconductance amplifier that monitors current using an external sense resistor and outputs a current proportional to the sensed voltage. The overall voltage gain is adjustable with a single resistor from the output to ground.
The amplifier has an extremely low offset voltage and input bias currents, making it ideal for precision sensing applications. It has a minimum bandwidth of 500kHz with a slew rate of 500µA/µs that makes it useful for current feedback in telemetry applications. When the part is powered down (V+ = V- = 0V), the sense pins (RS+, RS-) are high impedance to avoid loading the monitored circuit.
The part is available in a plastic 14Ld TSSOP package and operates across the temperature range of -55 °C to +125 °C.
Features
Qualified to Renesas Rad Tolerant Screening and QCI Flow (R34TB0004EU)
- Power supply range: 2.7V to 40V
- Input common-mode range: -0.3V to 40V
- Transconductance: 2µA/mV (typical)
- ±1% accuracy (TA = 25 °C)
- ±1.5% accuracy (TA = -55 °C, 125 °C)
- Voltage offset: 10µV (typical), V+ = 12V
- Adjustable gain with a single resistor
- Operating temperature range: -55 °C to +125 °C
- Passes NASA low outgassing specifications
- 14 Ld TSSOP with NiPdAu-Ag lead finish
- TID Radiation Lot Acceptance Testing (RLAT) (LDR: ≤ 10mrad(Si)/s)
- ISL70100M30VZ: 30krad(Si)
- ISL70100M50VZ: 50krad(Si)
- SEE Characterization
- No DSEE with V+ = 42V at 43MeV•cm2/mg
Comparison
Applications
Documentation
Featured Documentation
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| Type | Title | Date |
| Datasheet | PDF 1.31 MB | |
| Application Note | PDF 617 KB | |
| White Paper | PDF 533 KB | |
| Application Note | PDF 338 KB | |
| Application Note | PDF 224 KB | |
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Design & Development
Boards & Kits
Evaluation
ISL70100MEV1Z
Active
Radiation Tolerant 40V Current Sense Amplifier Evaluation Board
The ISL70100MEV1Z evaluation board is used to evaluate the performance of the ISL70100M radiation tolerant 40V current sense amplifier.
Built using the Renesas proprietary PR40 Silicon-on-Insulator (SOI) process, the ISL70100M is a transconductance amplifier that monitors current using an...
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Models
ECAD Models
Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on the CAD Model links in the Product Options table. If a symbol or model isn't available, it can be requested directly from SamacSys.
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