LMP7701/LMP7702/LMP7704 LMP7701 LMP7702 LMP7704 LMP7702/LMP7704 VIP50 - Datasheet Archive

 

LMP7701/LMP7702/LMP7704 CMOS LMP7701/LMP7702/LMP7704 LMP7701/LMP7702/LMP7704 / / CMOS LMP7701/LMP7702/LMP7704 LMP®

 

LMP7701/LMP7702/LMP7704 LMP7701/LMP7702/LMP7704 CMOS LMP7701/LMP7702/LMP7704 LMP7701/LMP7702/LMP7704 LMP7701/LMP7702/LMP7704 LMP7701/LMP7702/LMP7704 / / CMOS LMP7701/LMP7702/LMP7704 LMP7701/LMP7702/LMP7704 LMP® ds201273 23900 20041216 Peggy Alavi LMP7701 LMP7701 CMOS LMP7702 LMP7702 CMOS LMP7704 LMP7704 CMOS VS 5V (LMP7701 LMP7701) ± 200 (max) V (LMP7702/LMP7704 LMP7702/LMP7704) ± 220 (max) V ± 200 V 1pA ± LMP7701 LMP7701 LMP7701/LMP7702/LMP7704 LMP7701/LMP7702/LMP7704 VIP50 VIP50 VIP50 VIP50 CMOS 12V CMOS LMP7701/LMP7702/LMP7704 LMP7701/LMP7702/LMP7704 CMRR (LMP7701 LMP7701) (LMP7702 LMP7702) LMP7701/LMP7702/LMP7704 LMP7701/LMP7702/LMP7704 CMRR NMOS PMOS 40mV LMP7701/LMP7702/LMP7704 LMP7701/LMP7702/LMP7704 (LMP7704 LMP7704) ± 200fA 9nV/ Hz 130dB 130dB - 40 125 2.5MHz 715 A 1.5mA 2.9mA 2.7V 12V LMP7701 LMP7701 5 SOT23 SOIC 8 LMP7702 LMP7702 8 SOIC8 MSOP LMP7704 LMP7704 14 TSSOP PC DAC LMP® © National Semiconductor Corporation DS201273-07-JP DS201273-07-JP 1 20061020 Precision Current Source LMP7701/LMP7702/LMP7704 LMP7701/LMP7702/LMP7704 CMOS 2007 9 LMP7701/LMP7702/LMP7704 LMP7701/LMP7702/LMP7704 (Note 1) (20 ) ESD (Note 2) VIN (VS V - V - ) (Note 3) 235 (10 ) 260 (Note 1) 2,000V 200V (Note 3) - 40 125 ± 300mV (VS V - V 13.2V - ) 2.7V 12V ( JA (Note 3) V 0.3VV - 0.3V 5 SOT23 10mA 265 /W 8 MSOP 235 /W 14 TSSOP - 65 150 122 /W 150 3V (Note 4) TA 25 V 3VV - 0VVCM V /2 RL 10 k V /2 www.national.com/jpn/ 2 TA 25 V 3VV - 0VVCM V /2 RL 10 k V /2 5V (Note 4) TA 25 V 5VV - 0VVCM V /2 RL 10 k V /2 3 www.national.com/jpn/ LMP7701/LMP7702/LMP7704 LMP7701/LMP7702/LMP7704 3V (Note 4)( ) LMP7701/LMP7702/LMP7704 LMP7701/LMP7702/LMP7704 5V (Note 4)( ) TA 25 V 5VV - 0VVCM V /2 RL 10 k V /2 www.national.com/jpn/ 4 TA 25 V 5VV - 0VVCM V /2 RL 10 k V /2 ± 5V (Note 4) TA 25 V 5VV - 5VVCM 0V RL 10k 0V 5 www.national.com/jpn/ LMP7701/LMP7702/LMP7704 LMP7701/LMP7702/LMP7704 5V (Note 4)( ) LMP7701/LMP7702/LMP7704 LMP7701/LMP7702/LMP7704 ± 5V (Note 4)( ) TA 25 V 5VV - 5VVCM 0V RL 10k 0V Note 1: Note 2: : MIL-STD-883Method 3015.7 : JESD22-A115-A JESD22-A115-A (ESD MM std. of JEDEC) ( ) : JESD22-C101-C JESD22-C101-C (ESD FICDM std. of JEDEC) Note 3: TJ(MAX) - TA JA PD (TJ(MAX) - TA)/ JA Note 4: TJ TA Note 5: (typ) Note 6: 25 (SQC) Note 7: Note 8: Note 9: Note 10: www.national.com/jpn/ 6 LMP7701/LMP7702/LMP7704 LMP7701/LMP7702/LMP7704 5-Pin SOT23 (LMP7701 LMP7701) 8-Pin MSOP (LMP7701 LMP7701) Top View Top View 8-Pin MSOP (LMP7702 LMP7702) 14-Pin TSSOP (LMP7704 LMP7704) Top View Top View 7 www.national.com/jpn/ LMP7701/LMP7702/LMP7704 LMP7701/LMP7702/LMP7704 TA 25 VCM VS/2RL 10 k Offset Voltage Distribution Offset Voltage Distribution TCVOS Distribution Offset Voltage Distribution www.national.com/jpn/ TCVOS Distribution TCVOS Distribution 8 LMP7701/LMP7702/LMP7704 LMP7701/LMP7702/LMP7704 ( ) TA 25 VCM VS/2RL 10 k Offset Voltage vs. Temperature CMRR vs Frequency Offset Voltage vs. Supply Voltage Offset Voltage vs. VCM Offset Voltage vs. VCM Offset Voltage vs. VCM 9 www.national.com/jpn/ LMP7701/LMP7702/LMP7704 LMP7701/LMP7702/LMP7704 ( ) TA 25 VCM VS/2RL 10 k Input Bias Current vs. VCM Input Bias Current vs. VCM Input Bias Current vs. VCM Input Bias Current vs. VCM www.national.com/jpn/ Input Bias Current vs. VCM Input Bias Current vs. VCM 10 TA 25 VCM VS/2RL 10 k PSRR vs. Frequency Supply Current vs. Supply Voltage (Per Channel) Sinking Current vs. Supply Voltage Sourcing Current vs. Supply Voltage Output Voltage vs. Output Current Slew Rate vs. Supply Voltage 11 www.national.com/jpn/ LMP7701/LMP7702/LMP7704 LMP7701/LMP7702/LMP7704 ( ) LMP7701/LMP7702/LMP7704 LMP7701/LMP7702/LMP7704 ( ) TA 25 VCM VS/2RL 10 k Open Loop Frequency Response Open Loop Frequency Response Large Signal Step Response Small Signal Step Response Large Signal Step Response Small Signal Step Response www.national.com/jpn/ 12 TA 25 VCM VS/2RL 10 k Input Voltage Noise vs. Frequency Open Loop Gain vs. Output Voltage Swing Output Swing High vs. Supply Voltage Output Swing Low vs. Supply Voltage Output Swing High vs. Supply Voltage Output Swing Low vs. Supply Voltage 13 www.national.com/jpn/ LMP7701/LMP7702/LMP7704 LMP7701/LMP7702/LMP7704 ( ) LMP7701/LMP7702/LMP7704 LMP7701/LMP7702/LMP7704 ( ) TA 25 VCM VS/2RL 10 k THD+N vs. Frequency THD+N vs. Output Voltage Crosstalk Rejection Ratio vs. Frequency (LMP7702/ LMP7702/ LMP7704 LMP7704) www.national.com/jpn/ 14 LMP7701/LMP7702/LMP7704 LMP7701/LMP7702/LMP7704 LMP7701/LMP7702/LMP7704 LMP7701/LMP7702/LMP7704 / / CMOS 2.7V 12V LMP7701/LMP7702/LMP7704 LMP7701/LMP7702/LMP7704 ± 200fA - 40 125 2.7V 12V LMP7701/LMP7702/LMP7704 LMP7701/LMP7702/LMP7704 FIGURE 1. Isolating Capacitive Load LMP7701/LMP7702/LMP7704 LMP7701/LMP7702/LMP7704 ± 37 V ± 500 ( ) ± 520 ( / ) V V CMOS LMP7701/ LMP7701/ LMP7702/LMP7704 LMP7702/LMP7704 ± 200fA 9nV/ Hz LMP7701/ LMP7701/ LMP7702/ LMP7702/ LMP7704 LMP7704 LMP7701/ LMP7701/ LMP7702/LMP7704 LMP7702/LMP7704 CIN 25pF DC ± 200fA 9nV/ LMP7701/LMP7702/LMP7704 LMP7701/LMP7702/LMP7704 Hz LMP7701/ LMP7701/ LMP7702/LMP7704 LMP7702/LMP7704 SN LMP7701 LMP7701 5 SOT23 SOIC 8 LMP7702 LMP7702 8 SOIC8 MSOPLMP7704 MSOPLMP7704 14 TSSOP PC Figure 2 DC - R2/R1 LMP7701/LMP7702/LMP7704 LMP7701/LMP7702/LMP7704 Figure 1 RISO CL RISO RISO L C RISO FIGURE 2. Compensating for Input Capacitance CF Figure 2 AC 15 www.national.com/jpn/ LMP7701/LMP7702/LMP7704 LMP7701/LMP7702/LMP7704 LMP7701/LMP7702/LMP7704 LMP7701/LMP7702/LMP7704 Figure 2 CF CF Figure 4 CF ( ) 2 (1) (1) R1 R2 Figure 3 LMP7701/LMP7702/LMP7704 LMP7701/LMP7702/LMP7704 FIGURE 4. Closed Loop Gain vs. Frequency with Compensation Figure 5 LMP7701/LMP7702/LMP7704 LMP7701/LMP7702/LMP7704 1 ± 300mV ± 10mA FIGURE 3. Closed Loop Gain vs. Frequency (1) 2 (1) - 1 R1 R2 (R2 - AVR1) 1 R (2) R1 (2) FIGURE 5. Input of LMP7701 LMP7701 www.national.com/jpn/ 16 N LMP7701/LMP7702/LMP7704 LMP7701/LMP7702/LMP7704 Figure 6 A1 RS A2 RS RS A2 A1 A1 A2 A1 A2 Figure 7 RG 10RF 1kRO 1k FIGURE 6. Precision Current Source I LMP7701/LMP7702/LMP7704 LMP7701/LMP7702/LMP7704 9nV/ Hz Figure 7 N FIGURE 7. Noise Reduction circuit 17 www.national.com/jpn/ LMP7701/LMP7702/LMP7704 LMP7701/LMP7702/LMP7704 ( ) LMP7701/LMP7702/LMP7704 LMP7701/LMP7702/LMP7704 ( ) 10M Figure 9 (VIN VS - IBIAS*RS) LMP7701/LMP7702/LMP7704 LMP7701/LMP7702/LMP7704 IBIAS*RS RS IBIAS*RS Figure 8 LMP7701/ LMP7701/ LMP7702/LMP7704 LMP7702/LMP7704 en ei ei RS * in et eni LMP7701/LMP7702/LMP7704 LMP7701/LMP7702/LMP7704 300M FIGURE 9. Noise Due to IBIAS Figure 8 RS RS k RS pH pH pH pH pH 7 pH mV/pH pH pH Figure 10 pH 2559.15mV/pH pH FIGURE 10. Output Voltage of a pH Electrode FIGURE 8. Total Input Noise pH Figure 11 www.national.com/jpn/ 18 pH pH ADC ADC pH A1 pH 2 A2 A2 VOUT OUT - 2VpH V 1.024V LM4140A LM4140A ADC ADC12032 ADC12032 12 2 12 ADC pH 0.003 pH ADC Figure 12 ADC 3 AC FIGURE 11. Temperature Dependence of a pH Electrode Figure 12 pH LM35 IC LM35 A/D (ADC) FIGURE 12. pH Measurement Circuit 19 www.national.com/jpn/ LMP7701/LMP7702/LMP7704 LMP7701/LMP7702/LMP7704 ADC pH LM35 0 Figure 12 RT - V 0 RT ( ) LMP7701/LMP7702/LMP7704 LMP7701/LMP7702/LMP7704 inches (millimeters) 5-Pin SOT23 NS Package Number MF05A MF05A 8-Pin SOIC NS Package Number M08A www.national.com/jpn/ 20 LMP7701/LMP7702/LMP7704 LMP7701/LMP7702/LMP7704 millimeters ( ) 8-Pin MSOP NS Package Number MUA08A MUA08A 14-Pin TSSOP NS Package Number MTC14 MTC14 21 www.national.com/jpn/ LMP7701/LMP7702/LMP7704 LMP7701/LMP7702/LMP7704 CMOS (CEO) (GENERAL COUNSEL) a (b) National Semiconductor Copyright © 2007 National Semiconductor Corporation www.national.com 135-0042 2-17-16 / TEL.(03)5639-7300 www.national.com/jpn/