Precision Instrumentation Amplifier datasheet

1 INA1141 FEATURESlLOW OFFSET VOLTAGE: 50 V maxlLOW DRIFT: V/ C maxlLOW INPUT BIAS CURRENT: 2nA maxlHIGH COMMON-MODE REJECTION:115dB minlINPUT OVER-VOLTAGE PROTECTION: 40 VlWIDE SUPPLY RANGE: to 18 VlLOW QUIESCENT CURRENT: 3mA maxl8-PIN PLASTIC AND SOL-16 INA114 DESCRIPTIONThe INA114 is a low cost, general purpose instrumen-tation Amplifier offering excellent accuracy. Its versa-tile 3-op amp design and small size make it ideal for awide range of single external resistor sets any gain from 1 to 10, input protection can withstand up to 40 Vwithout INA114 is laser trimmed for very low offset voltage(50 V), drift ( V/ C) and high common-moderejection (115dB at G = 1000).

2 It operates with powersupplies as low as , allowing use in batteryoperated and single 5V supply systems. Quiescent cur-rent is 3mA INA114 is available in 8-pin plastic and SOL-16surface- mount packages. Both are specified for the 40 C to +85 C temperature AMPLIFIERlTHERMOCOUPLE AMPLIFIERlRTD SENSOR AMPLIFIERlMEDICAL INSTRUMENTATIONlDATA ACQUISITIONA1A2A3(12)(11)6(10)25k 25k 25k 25k (13)7(7)4(5)3(15)8(2)1(4)2 VINVINRGV+V INA114 DIP(SOIC)RefDIP ConnectedInternallyVOG = 1 +50k RG +5 Over-VoltageProtection25k 25k Over-VoltageProtectionFeedbackPrecisionI NSTRUMENTATION Amplifier International Airport Industrial Park Mailing Address: PO Box 11400, Tucson, AZ 85734 Street Address: 6730 S.

3 Tucson Blvd., Tucson, AZ 85706 Tel: (520) 746-1111 Twx: 910-952-1111 Internet: FAXLine: (800) 548-6133 (US/Canada Only) Cable: BBRCORP Telex: 066-6491 FAX: (520) 889-1510 Immediate Product Info: (800) 548-6132 INA114 INA114 1992 Burr-Brown CorporationPDS-1142 DPrinted in March, 1998 SBOS014 INA1142 SPECIFICATIONSELECTRICALAt TA = +25 C, VS = 15V, RL = 2k , unless otherwise noted.[ Specification same as INA114 : (1) Temperature coefficient of the 50k term in the gain , BUINA114AP, AUPARAMETERCONDITIONSMINTYPMAXMINTYPMAXU NITSThe information provided herein is believed to be reliable; however, BURR-BROWN assumes no responsibility for inaccuracies or omissions.]

4 BURR-BROWN assumesno responsibility for the use of this information, and all use of such information shall be entirely at the user s own risk. Prices and specifications are subject to changewithout notice. No patent rights or licenses to any of the circuits described herein are implied or granted to any third party. BURR-BROWN does not authorize or warrantany BURR-BROWN product for use in life support devices and/or Voltage, RTII nitialTA = +25 C 10 + 20/G 50 + 100/G 25 + 30/G 125 + 500/G Vvs TemperatureTA = TMIN to TMAX + + 5/G + 5/G 1 + 10/G V/ Cvs Power SupplyVS = to + 2/G3 + 10/G[[ V/VLong-Term Stability + [ V/moImpedance, Differential1010 || 6[ || pFCommon-Mode1010 || 6[ || pFInput Common-Mode Range 11 [[VSafe Input Voltage 40[VCommon-Mode RejectionVCM = 10V.]]]]]]]]

5 RS = 1k G = 180967590dBG = 109611590106dBG = 100110120106110dBG = 1000115120106110dBBIAS CURRENT 2[ 5nAvs Temperature 8[pA/ COFFSET CURRENT 2[ 5nAvs Temperature 8[pA/ CNOISE VOLTAGE, RTIG = 1000, RS = 0 f = 10Hz15[nV/ Hzf = 100Hz11[nV/ Hzf = 1kHz11[nV/ HzfB = to [ Vp-pNoise Currentf= [pA/ Hzf= [pA/ HzfB = to 10Hz18[pAp-pGAINGain Equation1 + (50k /RG)[V/VRange of Gain110000[[V/VGain ErrorG = 1 [[%G = 10 [ = 100 [ = 1000 1[ 2%Gain vs TemperatureG = 1 2 10[ 10ppm/ C50k Resistance(1) 25 100[[ppm/ CNonlinearityG = 1 [ of FSRG = 10 [ of FSRG = 100 [ of FSRG = 1000 [ of FSROUTPUTV oltageIO = 5mA, TMIN to TMAX [[VVS = , RL = 2k 10 [[VVS = , RL = 2k 1 [[VLoad Capacitance Stability1000[pFShort Circuit Current+20/ 15[mAFREQUENCY RESPONSEB andwidth, 3dBG = 11[MHzG = 10100[kHzG = 10010[kHzG = 10001[kHzSlew RateVO = 10V, G = [[V/ sSettling Time.]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]] ]]]]]

6 = 118[ sG = 1020[ sG = 100120[ sG = 10001100[ sOverload Recovery50% Overdrive20[ sPOWER SUPPLYV oltage Range 15 18[[ [VCurrentVIN = 0V 3[[mATEMPERATURE RANGES pecification 4085[[ COperating 40125[[ C JA80[ C/W INA1143 RGV INV+INV RGV+VORef12348765P Package8-Pin DIPTop ViewPIN CONFIGURATIONSELECTROSTATICDISCHARGE SENSITIVITYThis integrated circuit can be damaged by ESD. Burr-Brownrecommends that all integrated circuits be handled with ap-propriate precautions. Failure to observe proper handling andinstallation procedures can cause damage can range from subtle performance degradationto complete device failure.]]]]]]]]]]]]]]]

7 Precision integrated circuits maybe more susceptible to damage because very small parametricchanges could cause the device not to meet its publishedspecifications. NCRGNCV INV+INNCV NCNCRGNCV+FeedbackVORefNC123456781615141 31211109U PackageSOL-16 Surface-MountTop ViewPACKAGEDRAWINGTEMPERATUREPRODUCTPACK AGENUMBER(1)RANGEINA114AP8-Pin Plastic DIP006 40 C to +85 CINA114BP8-Pin Plastic DIP006 40 C to +85 CINA114 AUSOL-16 Surface-Mount211 40 C to +85 CINA114 BUSOL-16 Surface-Mount211 40 C to +85 CNOTE: (1) For detailed drawing and dimension table, please see end of datasheet , or Appendix C of Burr-Brown IC Data INFORMATIONS upply Voltage.

8 18 VInput Voltage Range .. 40 VOutput Short-Circuit (to ground) .. ContinuousOperating Temperature .. 40 C to +125 CStorage Temperature .. 40 C to +125 CJunction Temperature .. +150 CLead Temperature (soldering, 10s) .. +300 CNOTE: (1) Stresses above these ratings may cause permanent MAXIMUM RATINGS(1) INA1144 INPUT-REFERRED NOISE VOLTAGEvs FREQUENCYF requency (Hz)Input-Referred Noise Voltage (nV/ Hz)1101k1001k10010110kG = 1G = 10G = 100, 1000G = 1000BW LimitNEGATIVE POWER SUPPLY REJECTIONvs FREQUENCYF requency (Hz)Power Supply Rejection (dB)1010010k1M1k140120100806040200100kG = 1G = 10G = 100G = 1000 POSITIVE POWER SUPPLY REJECTIONvs FREQUENCYF requency (Hz)Power Supply Rejection (dB)

9 1010010k1M1k140120100806040200100kG = 1G = 10G = 100G = 1000 INPUT COMMON-MODE VOLTAGE RANGEvs OUTPUT VOLTAGEO utput Voltage (V)Common-Mode Voltage (V) 15 100515 5151050 5 10 1510 Limited by A1+ Output SwingA3 OutputSwing LimitA3 + OutputSwing LimitLimited by A2 Output SwingLimited by A1 Output SwingLimited by A2+ Output SwingVD/2 + +VCMVO(Any Gain)VD/2 COMMON-MODE REJECTION vs FREQUENCYF requency (Hz)Common-Mode Rejection (dB)1010010k100k1M1k140120100806040200G = 1kG = 100G = 10G = 1G = 100, 1kG = 10 GAIN vs FREQUENCYF requency (Hz)Gain (V/V)1010010k100k1M1k1k100101 TYPICAL PERFORMANCE CURVESAt TA = +25 C, VS = 15V, unless otherwise noted.

10 INA1145 MAXIMUM OUTPUT SWING vs FREQUENCYPeak-to-Peak Amplitude (V)1032282420161284010010k1 MFrequency (Hz)100k1kG = 100G = 1, 10G = 1000 INPUT BIAS CURRENTvs COMMON-MODE INPUT VOLTAGEI nput Bias Current (mA) 453210 1 2 3 30 150153045|Ib1| + |Ib2|Common-Mode Voltage (V)NormalOperationOver-VoltageProtection Over-VoltageProtectionOne InputBoth InputsBoth InputsOne InputINPUT BIAS CURRENTvs DIFFERENTIAL INPUT VOLTAGED ifferential Overload Voltage (V)Input Bias Current (mA) 453210 1 2 3 30 150153045G = 1G = 10G = 1000G = 100 INPUT BIAS AND INPUT OFFSET CURRENTvs TEMPERATURET emperature ( C)Input Bias and Input Offset Current (nA) 40210 1 2 1510356085 IBIOSOFFSET VOLTAGE WARM-UP vs TIMETime from Power Supply Turn-on (s)Offset Voltage Change ( V)06420 2 4 6153045607590105120G 100 SETTLING TIME vs GAINGain (V/V)Settling Time ( s) PERFORMANCE CURVES (CONT)At TA = +25 C, VS = 15V, unless otherwise noted.