| CAD Model: | View CAD Model |
| Pkg. Type: | DIE |
| Pkg. Code: | |
| Lead Count (#): | |
| Pkg. Dimensions (mm): | |
| Pitch (mm): |
| Moisture Sensitivity Level (MSL) | |
| Pb (Lead) Free | No |
| ECCN (US) | |
| HTS (US) |
| Pkg. Type | DIE |
| DLA SMD | 5962R1821701VXC |
| Pb (Lead) Free | No |
| MOQ | 100 |
| CAGE code | 34371 |
| Accuracy | ±0.34% |
| Continuous Output Current (mA) | 0.1 |
| DSEE (MeV·cm2/mg) | 86 |
| Die Sale Availability? | Yes |
| Flow | RH Hermetic |
| Output Impedance | 189 MΩ |
| Output Impedance (MΩ) | 189 |
| PROTO Availability? | Yes |
| Qualification Level | Class V |
| Rating | Space |
| SMD URL | 5962-18217 |
| Supply Voltage (V) | 3 - 40 |
| Supply Voltage (max) (V) | 40 - 40 |
| Supply Voltage (min) (V) | 3 - 3 |
| TID HDR (krad(Si)) | 100 |
| TID LDR (krad(Si)) | 75 |
| Target applications | High Side, Low Side, Dual Side |
| Temp. Range (°C) | -55 to +125°C |
The ISL70591SEH is a radiation hardened precision 100µA current source IC. The device has excellent accuracy of ±1% over a wide operating voltage range of 3V to 40V and over a temperature range of -55°C to +125°C. Fabricated with the Renesas proprietary PR40 Silicon-on-Insulator (SOI) process, the device is immune to single-event latch-up. The high output impedance of the device makes it insensitive to voltage drops across long lines. It can withstand a forward operating voltage of 40V and a reverse voltage of -0.5V. The ISL7x591SEH and ISL7x592SEH are two-terminal floating current sources allowing them to be used in high-side, low-side, and dual-side load applications such as sensor excitation, biasing networks, low-voltage references, floating voltage references, and ramp generators. The current sources were primarily designed for thermistor and other sensor excitation applications widely used in spacecraft. The device is available in a 4 Ld ceramic flatpack and die forms. The temperature range is -55°C to +125°C.