Features
- Electrically screened to DLA SMD 5962-18217
- Wide operating voltage range: 3V to 40V
- High initial accuracy (+V = 20V at +25 °C): ISL7x591SEH: ±0.34%, ISL7x592SEH: ±0.30%
- High output impedance: ISL7x591SEH: 189MΩ (typical), ISL7x592SEH: 14MΩ (typical)
- Completely floating: No ground connection
- Radiation acceptance testing - ISL70591SEH and ISL70592SEH
- High dose rate (50-300rad(Si)/s): 100krad(Si)
- Low dose rate (0.01rad(Si)/s): 75krad(Si)
- Radiation acceptance testing - ISL73591SEH and ISL73592SEH: Low dose rate (0.01rad(Si)/s): 75krad(Si)
- SEE hardness
- No SEB/SEL LETTH, +V = 35V: 86MeV•cm2/mg
- SET duration (time recovery) ≤ 125µs
Description
The ISL73592SEH is a radiation hardened precision 100µA and 1mA 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. High output impedance makes the device 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 space crafts. The ISL7x591SEH and ISL7x592SEH are available in a 4 Ld ceramic flatpack and die forms. The temperature range is -55 °C to +125 °C.
Parameters
| Attributes | Value |
|---|---|
| Rating | Space |
| Accuracy | ±0.3% |
| Continuous Output Current (mA) | 1 |
| Output Impedance (MΩ) | 14 |
| Supply Voltage (min) (V) | - |
| Supply Voltage (max) (V) | - |
| Temp. Range (°C) | -40 to +85°C, -40 to +125°C, -55 to +125°C |
| TID LDR (krad(Si)) | 75 |
| DSEE (MeV·cm2/mg) | 86 |
| Flow | RH Hermetic |
| Qualification Level | Class V, EM |
| Die Sale Availability? | Yes |
| PROTO Availability? | Yes |
Applications
- Sensor excitation
- Biasing network
- Low voltage references
- Ramp generators
Applied Filters: