RH6105MW

RH6105MW (Rev. 0)

Document overview

• Manufacturer or author: Analog Devices, Inc.
• PDF pages: 4

Technical content

BURN-IN CIRCUIT TOTAL DOSE CIRCUIT

DESCRIPTION

Precision, Extended Input Range Current Sense Amplifier The RH6105MW is a micropower , precision current sense amplifier with a very wide input common mode range. The RH6105MW monitors unidirectional current via the voltage across an external sense resistor . The input common mode range extends from –0.3V to 44V , with respect to the negative supply voltage (V –). This allows the RH6105MW to operate as a high side current sense monitor or a low side current sense monitor . It also allows the RH6105MW to monitor current on a negative supply voltage, as well as continuously monitor a battery from full charge to depletion. The inputs of the RH6105MW can withstand differential voltages up to ±44V , which makes it ideal for monitoring a fuse or MOSFET switch. Gain is configured with external resistors from 1V/V to 100V/V . The input common mode rejection and power supply rejection are in excess of 100dB and the input offset voltage is less than 565µV . A typical slew rate of 2V/ µs ensures fast response to unexpected current changes. The RH6105MW can operate from an independent power supply of 2.85V to 36V and draws only 150µA. When V+ is powered down, the sense pins are biased off. This prevents loading of the monitored circuit, irrespective of the sense voltage. The RH6105MW is available in a 10-lead bottom brazed flat pack. Document Feedback ABSOLUTE MAXIMUM RATINGS (Notes 1, 2) 0.1µF 100V 1k 100/uni03A9 100/uni03A9 42V 402k 4.99k 0.1µF 100V 7.15k 8.2V 6105MW TA01 6105MW TA01b 100Ω 100Ω 36V 4.99k All registered trademarks and trademarks are the property of their respective owners.

PACKAGE INFORMATION

TJMAX = 150°C, θJA = 90°C/W +IN NC VOUT NC NC –IN NC NC

ELECTRICAL CHARACTERISTICS (Pre-Irradiation) V+ = 12V , V– = 0V , VS+ = 12, RIN1 = RIN2 = 100Ω, ROUT = 5k (AV = 50), VSENSE = VS+ to VS–, unless otherwise specified. (Note 5) SYMBOL PARAMETER CONDITIONS NOTES TA = 25ºC SUB- GROUP −55ºC ≤ TA ≤ 125ºC SUB- GROUP UNITSMIN TYP MAX MIN TYP MAX VS+, VS− Input Voltage Range Guaranteed by CMRR –0.1 44 –0.1 44 V AV Error Voltage Gain Error VSENSE = 25mV to 75mV , VS+ = 12V 5 –1 –0.1 1 1 –1.5 1.5 2, 3 % VSENSE = 25mV to 75mV , VS+ = 0V 5 –4.25 2.25 1 –4.25 2.25 2, 3 % VOS Input Offset Voltage VSENSE = 5mV –0.565 0.565 1 –0.990 0.990 2, 3 mV VSENSE = 5mV , VS+ = 0V –1.0 1.0 1 –2.3 2.3 2, 3 mV ΔVOS/ΔT Temperature Coefficient of VOS 1.0 µV/°C CMRR Input Common Mode Rejection Ratio VSENSE = 5mV , VS+ = 2.8V to 44V 100 120 1 97 2, 3 dB VSENSE = 5mV , VS+ = –0.1V to 44V 85 1 75 2, 3 dB V+ Power Supply Voltage Range Guaranteed by PSRR 2.85 36 V PSRR Power Supply Rejection Ratio VSENSE = 5mV , VS+ = 12V , V+ = 2.85V to 36V 98 120 1 94 2, 3 dB VSENSE = 5mV , VS+ = 0V , V+ = 2.85V to 36V 85 93 1 85 2, 3 dB I(+IN), I(−IN) Input Current VSENSE = 0V , VS+ = 3V 14.1 20 1 30 2, 3 µA I(+IN) − I(−IN) Input Offset Current VSENSE = 0V , VS+ = 3V 0.350 1 3.33 2, 3 µA I(+IN) Input Current (Power Down) V+ = 0V , VS+ = 44V , VSENSE = 0 V 0.250 1 0.300 2, 3 µA I(−IN) Input Current (Power Down) V+ = 0V , VS+ = 44V , VSENSE = 0 V 0.250 1 1.550 2, 3 µA I(+IN) + I(−IN) Input Current (Power-Down) V+ = 0V , VS+ = 44V , VSENSE = 0V 0.500 1 1.850 2, 3 µA IS V+ Supply Current VSENSE = 0V , VS+ = 3V , V+ = 2.85V 154 300 1 350 2, 3 µA VSENSE = 0V , VS+ = 3V , V+ = 36V 185 360 1 450 2, 3 µA VO(MIN) Minimum Output Voltage VSENSE = 0V , VS+ = 44V , V+ = 36V 25 1 90 2, 3 mV VO(MAX) Output High (Referred to V+) VSENSE = 120mV , AV =100, ROUT = 10kΩ 1.285 1 1.7 V IOUT Maximum Output Current Guaranteed by VO(MAX) 1 2, 3 mA ISC Short-Circuit Output Current VS+ = 44V , VS– = 0V , ROUT = 10kΩ 2 1 1.2 mA BW –3dB Bandwith VSENSE = 500mV , AV =10V/V 100 kHz tS Output Settling to 1% of Final Value VSENSE = 5mV to 100mV 5 µs tr Input Step Response VSENSE = 5mV to 100mV 6 3 µs SR Slew Rate VSENSE = 5mV to 150mV , AV = 50V/V , RIN = 400Ω 7 2 3 4 1.5 5, 6 V/µs VREV Reverse Input Voltage (Referred to V–)

Information furnished by Analog Devices is believed to be accurate and reliable. However , no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. Specifications subject to change without notice. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. ELECTRICAL CHARACTERISTICS (Post-Irradiation) V+ = 12V , V– = 0V , VS+ = 12, RIN1 = RIN2 = 100Ω, ROUT = 5k (AV = 50), VSENSE = VS+ to VS–, unless otherwise specified. (Note 5, 8) SYMBOL PARAMETER CONDITIONS NOTES 10kRAD (Si) 20kRAD (Si) 50kRAD (Si) 100kRAD (Si) 200kRAD (Si) UNITSMIN MAX MIN MAX MIN MAX MIN MAX MIN MAX AV Error Voltage Gain Error VSENSE = 25mV to 75mV , VS+ = 12V VSENSE = 25mV to 75mV , VS+ = 0V CMRR Input Common Mode VSENSE = 5mV , VS+ = 2.8V to 44V VSENSE = 5mV , VS+ = –0.1V to 44V PSRR Power Supply Rejection Ratio VSENSE = 5mV , VS+ = 12V , V+ = 2.85V to 36V VSENSE = 5mV , VS+ = 0V , V+ = 2.85V to 36V I(+IN) Input Current (Power Down) V+ = 0V , VS+ = 44V , VSENSE = 0 V 270 270 270 270 270 nA I(−IN) Input Current (Power Down) V+ = 0V , VS+ = 44V , VSENSE = 0 V I(+IN) + I(−IN) Input Current (Power-Down) V+ = 0V , VS+ = 44V , VSENSE = 0V IS V+ Supply Current VSENSE = 0V , 306 315 330 360 400 µA VSENSE = 0V , VS+ = 3V , V+ = 36V 370 370 375 380 420 µA VO(MIN) Minimum Output Voltage VSENSE = 0V , VS+ = 44V , V+ = 36V 26 28 35 36 38 mV VO(MAX) Output High (Referred to V+) VSENSE = 120mV , AV =100, ROUT = 10kΩ ISC Short-Circuit Output Current VS+ = 44V , VS– = 0V , ROUT = 10kΩ SR Slew Rate VSENSE = 5mV to 150mV , AV = 50V/V , RIN = 400Ω VREV Reverse Input Voltage (Referred to V–) Note 1: Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. Exposure to any Absolute Maximum Rating condition for extended periods may affect device reliability and lifetime. Note 2: ESD (Electrostatic Discharge) sensitive devices. Extensive use of ESD protection devices are used internal to the RH6105MW , however , high electrostatic discharge can damage or degrade the device. Use proper ESD handling precautions. Note 3: A heat sink may be required to keep the junction temperature below absolute maximum ratings. Note 4: The RH6105MW is guaranteed to meet specified performance from –55°C to 125°C. Note 5: 0.01% tolerance external resistors are used. Note 6: tr is measured from the input to the 2.5V point on the 5V output. Note 7: Slew rate is measured on the output between 1V and 5V . Note 8: Device is characterized at 10Krad, 20Krad, 50Krad, 100Krad and 200Krad, and is production tested at 100Krad only.

www.analog.com  ANALOG DEVICES, INC. 2025 Specifications are at TA = 25°C. ELECTRICAL CHARACTERISTICS: BURN-IN DELTA PARAMETERS SYMBOL PARAMETER CONDITIONS END POINT LIMITS DEL TA LIMITS UNITSMIN MAX MIN MAX AV Error Voltage Gain Error VSENSE = 25mV to 75mV , VS+ = 12V –1 1 –0.15 0.15 % VOS Input Offset Voltage VSENSE = 5mV –565 565 –150 150 µV IS V+ Supply Current VSENSE = 0mV , VS+ = 3V , VT = 36V 360 –8 8 μA MIL-PRF-38535 TEST REQUIREMENTS SUBGROUPS (IN ACCORDANCE WITH MIL-PRF-38535 TABLE III) Interim Electrical Parameters 1, 2, 3, 4 Final Electrical Parameters 1, 2, 3*, 4, 5, 6 Group A Test Requirements 1, 2, 3, 4, 5, 6 Group C End-Point Electrical Parameters 1, 2, 3, 4, 5, 6 Group D End-Point Electrical Parameters 1, 2, 3, 4 Group E End-Point Electrical Parameters 1**, 2, 3, 4 *PDA applies to Subgroup 1 only along with any delta failures. **Dry ice is used based on location of test vs radiation source. ELECTRICAL TEST REQUIREMENTS Processed to MIL-PRF-38535 QMLV screening except as noted below.

REVISION HISTORY

REV DATE DESCRIPTION PAGE NUMBER A 11/25 Changes to Electrical Characteristics Changes to Electrical Test Requirements 2, 3