LMP7702

Manufacturer Part NumberLMP7702
ManufacturerTexas Instruments
LMP7702 datasheet
 


Specifications of LMP7702

Number Of Channels2Total Supply Voltage(min)(+5v=5, +/-5v=10)2.7
Total Supply Voltage(max)(+5v=5, +/-5v=10)12Gbw(typ)(mhz)2.5
Slew Rate(typ)(v/us)1Vio (25c)(max)(mv)0.22
Offset Drift(typ)(uv/c)1Vn At 1khz(typ)(nv/rthz)9
Iib(max)(pa)400Cmrr(min)(db)130
Psrr(db)100Rail-railIn/Out
Additional FeaturesLow Offset CMOS InputPin/package8SOIC, 8VSSOP
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LMP7701,LMP7702,LMP7704
LMP7701/LMP7702/LMP7704 Precision, CMOS Input, RRIO, Wide Supply Range
Amplifiers
Literature Number: SNOSAI9G

LMP7702 Summary of contents

  • Page 1

    ... LMP7701,LMP7702,LMP7704 LMP7701/LMP7702/LMP7704 Precision, CMOS Input, RRIO, Wide Supply Range Amplifiers Literature Number: SNOSAI9G ...

  • Page 2

    ... The LMP7701 is offered in the space saving 5-Pin SOT23 and 8-Pin SOIC package. The LMP7702 is offered in the 8-Pin SOIC and 8-Pin MSOP package. The quad LMP7704 is of- fered in the 14-Pin SOIC and 14-Pin TSSOP package. These small packages are ideal solutions for area constrained PC boards and portable electronics ...

  • Page 3

    ... LMP7702/LMP7704 ≤ ≤ 2. 12V ≥ CMRR 80 dB ≥ CMRR kΩ (LMP7701 0. kΩ (LMP7702/LMP7704 0. kΩ 0. (Note 1) −40°C to +125° – V − ) 2.7V to 12V S (Note 3 0V /2, and R > ...

  • Page 4

    ... L LMP7702/LMP7704 Sourcing 100 mV IN Sinking −100 mV (LMP7701) IN Sinking −100 mV (LMP7702/ IN LMP7704) LMP7701 LMP7702 LMP7704 10 kHz kΩ kHz f = 100 kHz (Note 4) = 25° 5V, V − ...

  • Page 5

    ... L LMP7702/LMP7704 kΩ LMP7701 kΩ LMP7702/LMP7704 Sourcing 100 mV (LMP7701) IN Sourcing 100 mV (LMP7702/LMP7704) IN Sinking −100 mV (LMP7701) IN Sinking −100 mV (LMP7702/LMP7704) IN LMP7701 LMP7702 LMP7704 10 kHz kΩ ...

  • Page 6

    ... CMRR kΩ (LMP7701 −4. kΩ (LMP7702/LMP7704 −4. kΩ (LMP7701 −4. kΩ (LMP7702/LMP7704 −4. Min Typ Max Units (Note 5) (Note 6) 9 nV/ 1 fA/ = 0V, and R > 10 kΩ to 0V. Bold- L ...

  • Page 7

    ... LMP7701 kΩ LMP7702/LMP7704 kΩ LMP7701 kΩ LMP7702/LMP7704 Sourcing 100 mV (LMP7701) IN Sourcing 100 mV (LMP7702/LMP7704) IN Sinking −100 mV IN LMP7701 LMP7702 LMP7704 10 kHz kΩ ...

  • Page 8

    ... Connection Diagrams 5-Pin SOT23 (LMP7701) Top View 8-Pin SOIC/MSOP (LMP7702) Top View Ordering Information Package Part Number LMP7701MF 5-Pin SOT23 LMP7701MFX LMP7701MA 8-Pin SOIC LMP7701MAX LMP7702MA 8-Pin SOIC LMP7702MAX LMP7702MM 8-Pin MSOP LMP7702MMX LMP7704MA 14-Pin SOIC LMP7704MAX LMP7704MT 14-Pin TSSOP LMP7704MTX ...

  • Page 9

    Typical Performance Characteristics Offset Voltage Distribution Offset Voltage Distribution Offset Voltage Distribution www.national.com Unless otherwise noted: T TCV 20127336 TCV 20127337 TCV 20127338 8 = 25° /2, R > 10 kΩ Distribution OS ...

  • Page 10

    Offset Voltage vs. Temperature 20127306 Offset Voltage vs. Supply Voltage 20127310 Offset Voltage vs 20127308 CMRR vs. Frequency Offset Voltage vs. V Offset Voltage vs 20127350 CM 20127307 CM 20127309 www.national.com ...

  • Page 11

    Input Bias Current vs. V Input Bias Current vs. V Input Bias Current vs. V www.national.com Input Bias Current vs 20127346 Input Bias Current vs 20127347 Input Bias Current vs 20127348 10 CM 20127330 ...

  • Page 12

    PSRR vs. Frequency 20127345 Sinking Current vs. Supply Voltage 20127313 Output Voltage vs. Output Current 20127316 Supply Current vs. Supply Voltage (Per Channel) Sourcing Current vs. Supply Voltage Slew Rate vs. Supply Voltage 11 20127311 20127312 20127317 www.national.com ...

  • Page 13

    Open Loop Frequency Response Large Signal Step Response Large Signal Step Response www.national.com Open Loop Frequency Response 20127315 Small Signal Step Response 20127318 Small Signal Step Response 20127319 12 20127314 20127320 20127326 ...

  • Page 14

    Input Voltage Noise vs. Frequency Output Swing High vs. Supply Voltage 20127333 Output Swing High vs. Supply Voltage 20127332 Open Loop Gain vs. Output Voltage Swing 20127327 Output Swing Low vs. Supply Voltage Output Swing Low vs. Supply Voltage 13 ...

  • Page 15

    ... THD+N vs. Frequency Crosstalk Rejection Ratio vs. Frequency (LMP7702/ LMP7704) www.national.com THD+N vs. Output Voltage 20127328 20127353 14 20127329 ...

  • Page 16

    ... The LMP7701 is offered in the space saving 5-Pin SOT23 and 8-Pin SOIC package. The LMP7702 comes in the 8-Pin SOIC and 8-Pin MSOP package. The LMP7704 is offered in the 14- Pin SOIC and 14-Pin TSSOP package. These small pack- ages are ideal solutions for area constrained PC boards and portable electronics ...

  • Page 17

    ... FIGURE 4. Closed Loop Gain vs. Frequency with DIODES BETWEEN THE INPUTS The LMP7701/LMP7702/LMP7704 have a set of anti-parallel diodes between the input pins, as shown in Figure 5. These diodes are present to protect the input stage of the amplifier. At the same time, they limit the amount of differential input 20127354 voltage that is allowed on the input pins ...

  • Page 18

    ... PRECISION CURRENT SOURCE The LMP7701/LMP7702/LMP7704 can each be used as a precision current source in many different applications. Figure 6 shows a typical precision current source. This circuit imple- ments a precision voltage controlled current source. Amplifier differential amplifier that uses the voltage drop across R as the feedback signal. Amplifier buffer that elimi- ...

  • Page 19

    ... As a result, these amplifiers are ideal choices for circuits with high impedance sensor applications. Figure 8 shows the typical input noise of the LMP7701/ LMP7702/LMP7704 as a function of source resistance where: e denotes the input referred voltage noise n ...

  • Page 20

    FIGURE 11. Temperature Dependence Electrode The schematic shown in Figure typical circuit which can be used for pH measurement. The LM35 is a precision integrated circuit temperature sensor. This sensor is differen- tiated from ...

  • Page 21

    Physical Dimensions www.national.com inches (millimeters) unless otherwise noted 5-Pin SOT23 NS Package Number MF05A 8-Pin SOIC NS Package Number M08A 20 ...

  • Page 22

    MSOP NS Package Number MUA08A 14-Pin SOIC NS Package Number M14A 21 www.national.com ...

  • Page 23

    TSSOP NS Package Number MTC14 22 ...

  • Page 24

    Notes 23 www.national.com ...

  • Page 25

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  • Page 26

    ... Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice. Customers should obtain the latest relevant information before placing orders and should verify that such information is current and complete. All products are sold subject to TI’ ...