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LMP7731

LMP7731 2.9 nV/sqrt(Hz) Low Noise, Precision, RRIO Amplifier

Literature Number: SNOSAT6D

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Содержание LMP7731

Страница 1: ...LMP7731 LMP7731 2 9 nV sqrt Hz Low Noise Precision RRIO Amplifier Literature Number SNOSAT6D...

Страница 2: ...nal conditioning in applications with high closed loop gain requirements The LMP7731 has a supply voltage range of 1 8V to 5 5V making it an ideal choice for battery operated portable appli cations Th...

Страница 3: ...ise specified all limits are guaranteed for TA 25 C V 2 5V V 0V VCM V 2 RL 10 k to V 2 Bold face limits apply at the temperature extremes Symbol Parameter Conditions Min Note 6 Typ Note 5 Max Note 6 U...

Страница 4: ...Common Mode 151 M THD N Total Harmonic Distortion Noise AV 1 f 1 kHz Amplitude 1V 0 002 en Input Referred Voltage Noise Density f 1 kHz VCM 2 0V 3 nV f 1 kHz VCM 0 5V 3 Input Voltage Noise 0 1 Hz to 1...

Страница 5: ...age Swing Low RL 10 k to V 2 9 50 75 RL 2 k to V 2 13 50 75 IOUT Output Current Sourcing VOUT V 2 VIN diff 100 mV 28 22 45 mA Sinking VOUT V 2 VIN diff 100 mV 25 20 48 IS Supply Current Per Channel VC...

Страница 6: ...o 0 15V VCM 0 7V 0 23V VCM 0 7V 101 89 120 dB 1 5V VCM 4 85V 1 5V VCM 4 77V 105 99 130 PSRR Power Supply Rejection Ratio 2 5V V 5V 111 105 129 dB 1 8V V 5 5V 117 CMVR Common Mode Voltage Range Large S...

Страница 7: ...A All numbers apply for packages soldered directly onto a PC Board Note 4 Electrical Table values apply only for factory testing conditions at the temperature indicated Factory testing conditions resu...

Страница 8: ...noted TA 25 C RL 10 k VCM VS 2 Offset Voltage Distribution 20175238 TCVOS Distribution 20175234 Offset Voltage Distribution 20175239 TCVOS Distribution 20175236 Offset Voltage Distribution 20175240 TC...

Страница 9: ...ge Distribution 20175241 TCVOS Distribution 20175237 Offset Voltage vs Temperature 20175251 Offset Voltage vs Temperature 20175252 PSRR vs Frequency 20175229 CMRR vs Frequency 20175256 www national co...

Страница 10: ...pply Voltage 20175242 Offset Voltage vs VCM 20175243 Offset Voltage vs VCM 20175244 Offset Voltage vs VCM 20175245 Input Offset Voltage Time Drift 20175230 Slew Rate vs Supply Voltage 20175220 9 www n...

Страница 11: ...ise 20175269 Time Domain Voltage Noise 20175267 Time Domain Voltage Noise 20175268 Output Voltage vs Output Current 20175259 Input Bias Current vs VCM 20175225 Input Bias Current vs VCM 20175226 www n...

Страница 12: ...0175227 Open Loop Frequency Response Over Temperature 20175218 Open Loop Frequency Response 20175219 Open Loop Frequency Response 20175228 THD N vs Frequency 20175257 THD N vs Output Voltage 20175258...

Страница 13: ...175222 Small Signal Step Response 20175221 Large Signal Step Response 20175224 Small Signal Step Response 20175223 Supply Current vs Supply Voltage 20175246 Output Swing High vs Supply Voltage 2017525...

Страница 14: ...Output Swing Low vs Supply Voltage 20175249 Sinking Current vs Supply Voltage 20175247 Sourcing Current vs Supply Voltage 20175248 13 www national com LMP7731...

Страница 15: ...ENT CANCELLATION The LMP7731 has proprietary input bias current cancellation circuitry on their input stages The LMP7731 has rail to rail input This is achieved by having two input stages in parallel...

Страница 16: ...tions due to air flow Offset can vary by a few nV due to this airflow and that can invalidate measurements of input voltage noise with a magnitude which is in the same range For similar reasons sudden...

Страница 17: ...switching capacitor and it will hence provide the voltage need ed to quickly and smoothly charge the ADC s sampling ca pacitor Since this large capacitor will be loading the output of the amplifier as...

Страница 18: ...Physical Dimensions inches millimeters unless otherwise noted 5 Pin SOT 23 NS Package Number MF05A 8 Pin SOIC NS Package Number M08A 17 www national com LMP7731...

Страница 19: ...EACH PRODUCT IS NOT NECESSARILY PERFORMED NATIONAL ASSUMES NO LIABILITY FOR APPLICATIONS ASSISTANCE OR BUYER PRODUCT DESIGN BUYERS ARE RESPONSIBLE FOR THEIR PRODUCTS AND APPLICATIONS USING NATIONAL CO...

Страница 20: ...or use in safety critical applications such as life support where a failure of the TI product would reasonably be expected to cause severe personal injury or death unless officers of the parties have...

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