LTC1050 LINER | Alldatasheet
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f DAE\\ AR LTC1050 TECHNOLOGY Precision Chopper Stabilized Operational Amplifier With Internal Capacitors FEATURES DESCRIPTION = No External Components Required The LTC1050 is a high performance, low cost chopper sta- ® Noise Tested and Guaranteed bilized operational amplifier. The unique achievement of = LowAliasing Errors the LTC 1050 is that it integrates on chip the two sample- = Maximum Offset Voltage 5:V and-hold capacitors usually required externally by other = Maximum Offset Voltage Drift 0.5:V/°C chopper amplifiers. Further, the LTC1050 offers better = Low Noise 1.64Vp.p (0.1Hz to 10Hz) combined overall DC and AC performance than is avail- ® Minimum Voltage Gain, 130dB able from other chopper stabilized amplifiers with or with- = Minimum PSRR, 125dB out internal sample/hold capacitors = Minimum CMRP, 12048 The LTC1050 has an offset voltage of 0.5,V, drift of 2 | = Low Supply Current 1mA P + ‘ 0.01nV/°C, DC to 10Hz, input noise voltage of 1.6Vp.» and = Single Supply Operation 4.75V to 16V ical vol in of 1604B. The si ev ? d = Input Common Mode Range Includes Ground a typical voltage gain of 161 f e yi ew rate of 4Vius an = Output Swings to Ground a gan bandwidth product of 2.5MHz are achieved with = Typical Overload Recovery Time 3ms only 1mA of supply current. Overload recovery times from positive and negative saturation conditions are 1.5ms and 3ms respectively, which represents an improvement of about 100 times over APPLICATIONS chopper amplifiers using external capacitors. Pin 5 is an om optional external clock input, useful for synchronization = Thermocouple Amplifiers purposes. = Electronic Scales , = Medical Instrumentation The LTC1050 is available in standard 8-pin metal can, plas- = Strain Gauge Amplifiers tic and ceramic dual in line packages as well as an 8-pin ® High Resolution Data Acquisition $08 package. The LTC1050 can be an improved plug in re- = DC Accurate R, C Active Filters placement for most standard op amps. TYPICAL APPLICATION High Performance Low Cost Instrumentation Amplifier Noise Spectrum re a -4 _ : CT TTT wares ING SUM TA Ui Th a Le ean Nm ‘ 1 2 2 0 fttiommnnii od MM omen} | De ty Ly, 3 LMT TN TT od er re a 3 oo LUT TIN TT ' ' OMT al Foy} CLM TT TTT ey LT WHER ote
ee — TE MAXIMUM RATINGS ABSOLU Operating Temperature Range Tt PACKAGE/ORDER INFORMATION ore ORDER PART NUMBER re vew ORDER PART NUMBER PO Ke LTCTO50AMH “ELS, Br ono Bore LTC1050MH THT Be LTC1050CS8 fo LTC1050ACH “ca swoweat oa LTC1050CH sueso rustic soe _ LTC1050AMJ8 ef x << be LTC1050MJ8 ~q Be on LTC1050ACJ8 “go Ae LTC1050ACN “A Breraox LTC1050Cu8 Gj fa oor LTC1050CN vitae rn LTCI050ACN8 a a oe LTC1050CN8 me, EE en
ELECTRICAL CHARACTERISTICS
Vg = + 5V, T,= operating temperature range unless otherwise specified. coor [on a | | PARAMETER MIN TYP MAX MIN TYP MAX UNITS input Offset Voltage | Ta=26°C(Notes) | [05 ee 0S wv Average Input Offset Drift | Note fo 0012005 [e001 005 | wre Long Term Offset Voltage Drift dB) ic a +t +1 pb ee ere +800 +100 p to1Hz .6 Bp input Noise Current [ t= torz(noteg Tae coeenenns [enemies |g Te |g 120 1 dB Power Supply Rejection Ratio | Vs=22a76vtosev fel 0s] Large Signa Voltage Gain [ROG Vors2 fel 10 100 «| ~SatooSiYCS aa m= R= 100k $4.95 £4.95 Vv Slew Rate [| R=10Ko,C.=50F TPs Gain Bandwidth Product a Oe 7 sree eee ees mA ineral Sampling Frequency a 0 EY CS EE 2-182 LY nee
Vg = + 5V, Ty = operating temperature range unless otherwise specified. [ero on a | PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX UNITS Input Offset Voltage | Tr=25eC(Notes) TT eos | 0 TW Average input Oat Dat [woteg SSS tors [eta | LongTermOtfsetVotageD® ——|—=—SSSCSCSC~C~SSiY SCC +200 +200 pA a a +1000 +150 pA Rg = 1000, DC to 1Hz 06 0.6 Wop input Noe Caen [titre Woiey | | «de a Powe Supply Resin Palio re 2 | Lage Signal Votage ain & occa EO R, =100k2 24.95 24.95 v Siew Rae Ca Gain Bandwidth Product a er a Le 2.3 mA Internal Sampling Frequency a Oe eS The @ denotes the specifications which apply over the full operating tem- Note 3: These parameters are guaranteed by design. Thermocouple effects perature range. preclude measurement of these voltage levels in high speed automatic test Note 1: Absolute Maximum ratings are those values beyond which life of Systems. Vog is measured to a limit determined by test equipment capability. the device may be impaired. Note 4: Current Noise is calculated from the formula: In = v(2q « 1b) where Note 2: Connecting any terminal to voltages greater than V+ or less than q=1.6x10- "Coulomb. V-— may cause destructive latch-up. It is recommended that no sources Note 5: AtT,<0°C these parameters are guaranteed by design and not operating from external supplies be applied prior to power-up of the tested. (71050. Note 6: Every lot of LTC1050AM and LTC1050AC is 100% tested for Broad- band Noise @ 1kHz and sample tested for Input Noise Voltage @ 0.1Hzto 10Hz. SS TEST CIRCUITS Electrical Characteristics Test Circuit DC-10Hz Noise Test Circult 475k 1M 100k 109 yy 158k 316k £ ; OUTPUT Tox 4 a O.tuE O.tF RECORDER ‘ + It = = FOR 1Hz NOISE BW INCREASE ALL THE CAPACITORS BY A FACTOR OF 10. nnn anne eeemean ed LY eae 2-183
| s STICS put Range LTC1050 MANCE CHARACTERI cnet TYPICAL PERF . — CeEEEEEE Offset meyege vs samp 8 ~ = , Poet Freque i . A FREES PEncent parecer 8 [I [7] # 7 NNT oH :! one =o | f| 3, CO I Mtl 2 acc H pete ea At NS Ho PAS 3 6 FA a HL | “CTT oS 3 {| | | f__| Zz 2 all mil oe 2 ag, a —}-f— 2 I a aa ZA FC a 4 45 SAMPL smite hese camping Frequency _ erature i Sampling Frequency vs Supply Temp CTT] om Voltage AREER wr ov— a . _ i = a ~
35 Ta=25°C z¢ KEES |
| =-100 Vg= +! a oe aml g [| Cit tt 7510) 1 | . 2 2 naa 6 50 ~ "AMDT TEMPERATURE, 20) ouput Shot het ure o 12 4 4 bpd se ar vow vex v+TOV-(W) Temperature Pa TOTAL SUI im . = Supply Curre ; 7 P =a Supply Voltage [fener i beet Se PERE EE §. Choco = 25° : oe a EPR SEE ; AREY Snceae KH Ceres nONSEEY mW, pt | RE Prrry 4al r Ea nan 02 ann 25 a 2 SECH-H “9 ~PAMBENT TEMPERATURE. 7 7 2 4 ° 6 8 nse. V' TOV Ww) ‘ TOTAL SUPPLY VOI 2-184
TYPICAL PERFORMANCE CHARACTERISTICS Gain/Phase vs Frequency Small Signal Transient Response Large Signal Transient Response ~ eS). — — a i wel \\ ao NIT esl 2 So ‘i v— 2S CMU TTI. ¢ * — = SM TMNT NT es 2 Ts ar TTT TTA co ayeses micro ccctone vem sv hyatt Rest Clete Vga 5¥ oe TTT vg CUT TTETTM ra | LTC1050 DC to 1Hz Noise BRR Lit} tt ete tT ft WRN tye ta A LUA Wee PE ety eee EP HEEL PT rT t iti tet yy LTC1050 DC to 10Hz Noise eee AARNE THe aaly/ Mia rb Mal ita lage AW Fa AA a ll PP Perper Pe Pit tit trite tty Pitre LT We 2-185
used (e.g., Teflon, Kel-F); cleaning of all insulating sur- 4 times the maximum drift specification of the LTC1050. moisture barrier in high humidity environments. specification of the LTC1050. guard ring should be tied to ground; in non-inverting con- — number of juctions in the amplifier’s input signal path. 6 ~ sary resistor to promote differential thermal balance. Figure 1. 7 | > output
not the ambient temperature. There are two junctions capacitance is required to minimize loading on this pin. are at the same temperature, their thermal EMFs will can- P g at pins. Figure 3. Sampling Frequency vs and cannot be cancelled. Metal can H packages exhibit _ plies, the external clock level is TTL compatible. the worst warm-up drift. The input offset voltage specifica- . is chosen such that it is high enough to remove the am- _insensitive to the sampling frequency.
APPLICATIONS INFORMATION : LOW SUPPLY OPERATION connected to pin 1 and 8 which are not needed for the F LTC1050. Pin 1 and pin 8 of the LTC1050 are not connected The minimum supply for proper operation of the LTC1050 internally while pin 5 is an optional external clock input is typically below 4.0V (+2.0V). In single supply applica- bin. The LTC1050 can be a direct plug in for the 7650 and tions, PSRR is guaranteed down to 4.7V (+2.35V) to en- 7659 even if the two capacitors are left on the circuit Sure proper operation down to the minimum TTL specified — oarg voltage of 4.75V. : In applications operating from below + 16V total power PIN COMPATIBILITY supply, (+8V), the LTC1050 can replace many industry- te nt F . . . standard operational amplifiers such as the 741, LM101, Teed Tee? on eat wi the Spin versions of L108, OPOT etc For devices like the 741 and LM, the , and other chopper-stabilized amplifiers. The , ; in 5isall that is needed. 7650 and 7652 require the use of two external capacitors removal of any connection to pin i all thats neede TYPICAL APPLICATIONS Strain Gauge Signal Conditioner with Bridge Excitation 1202 2.5V wv 3502 . sv = ' 1 1 6 OUTPUT
1 RNGOC Ry
--d4 2N2907 3 = _8v 510 “OPTIONAL REFERENCE OUT TO MONITORING 10 BIT A/D CONVERTER > aw **AT GAIN = 1000. 10Hz PEAK-TO-PEAK NOISE IS <1/2 LSB FOR 10 BIT RESOLUTION Sv Single Supply Thermocouple Amplifier is 1002 sk = 0.068 ,4F wv ov 2 7 2 6 Your r 7 - - 3 7 1omv/°C L710258 = TT GND RE TREK OS a ° 0°C ~ 100°C TEMPERATURE RANGE SS 2-188 LT Nee
Battery Operated Temperature Monitor with 10-Bit Serial Output A/D Vin=oV 4 = 10pF Ot yur gt 1k I 34k 178k 0.1% 1% 0.1% CN 1 8 , + Vn y 4 +e - con LT10254 a - SND Ver TYPE J T . T GND R- g = = > = Ed 0°C ~500°C TEMPERATURE RANGE 2°C MAX ERROR =F *THERMOCOUPLE LINEARIZATION CODE AVAILABLE FROM LTC Air Flow Detector 10k v 100k 1k AD 7 tr1008 ed ie igeicame 6 5V=NOAIR FLOW Dasa OV=AIR FLOW AMBIENT J = TEMPERATURE. 2400 STILL AIR = TREK 7 AIR FLOW ESE LT Wee 2-189
Fast Precision Inverter + 100mA Output Drive 10k 10k % % 10k INPUT: Vin sv wv oo 2 1 1000F| 100k 10k 6 Vour 100pF 1000pF 3 | + 100mA au 4 RL sy 2 y iL —5v ~5v Z G u ourPuT Vos=5sV = 6 3 Vos/ AT =500V/°C 10k 4 GAIN=10
3 FULL POWER BANOWIOTH = 10kHz
= -v FULL POWER BANDWIDTH = 2MHz = SLEW RATE > 40V/,S SETTLING TIME =5,S TO 0.01% (10V STEP) OFFSET VOLTAGE = 5, OFFSET DRIFT =50nv/°C. Ground Referred Precision Current Sources 71034 fl Os loyr<25mA* * 0.2VsVoyrs(V+)-2V Your ~ lgyp= 1238 *MAXIMUM CURRENT LIMITED BY ‘OUT= "Reser POWER DISSIPATION OF 2N2222 ca ae R ss f = 3 SET ee ser “ t AC > + O<Iqyt<25mA* tour = 1 2380 = (V>)+2V sVoyrs ~1.8V ve “MAXIMUM CURRENT LIMITED BY our POWER DISSIPATION OF 2N2907 1 1034 re
a Precision Voltage Controlled Current Source with Ground Referred Input and Output Vv INPUT _3. 2N2222 A 0.68,F Sv * path im 7 uc1043 | 1 1 ' i] l AaF I 1aF 1 1002 I [2] ' 1 ' [so of] ---4tg + 0.001 uF Sample-and-Hold Amplifier Ultra Precision Voltage Inverter LTC1043, | re | u11043 Vin oe o—{s] | res | y 3 ‘our t t = nc—f 3 fo o—{5} 1 1 1 ! cy | c I i co 1 WF Pa wood ' 1 I Vour ‘SAMPLE f- ~ Jo 3 Vin > ‘ CF] oY FOR 1V <Viy <4, THE HOLD STEP IS Fay 0.01nF FOR Voge deb <n ACQUISITION TIME IS DETERMINED BY THE SWITCH Row. Cy TIME CONSTANT ‘ON: MATCHING BETWEEN C, AND C2 NOT REQUIRED a
Instrumentation Amplifier with Low Offset and Input Bias Current c 0.1% 0.1% aaa ra INPUT => ourPUT +3 1k 100k 6 0.1% 0.1% a OFFSET VOLTAGE < + 10.V INPUT BIAS CURRENT = 15pA CMRR = 10008 FOR GAIN = 100 INPUT REFERRED NOISE =SpVp.p FOR C=O. 1pF =20jV p-p FOR C=0.01aF Instrumentation Amplifier with 100V Common Mode Input Voltage vin ‘ cre Ws Ps WA ap ey sSeetpeey, - ai fon 1k v ot V V OUTPUT OFFSET <5mV FOR 0.1% RESISTORS, CMRR =54dB Single Supply instrumentation Amplifier tk we 1k . = urereso, Bale, . Vout 3 iy Vin = 4 +Vin = OUTPUT OFFSET <Smv FOR 0.1% RESISTORS, CMRR=54dB AS 2-192 LT Wee
~ | “ Vour . HP 5082-4204 500kn
6 Decade Log Amplifier
0.0022yF w 10k av % asm $7 01% | 2 7 + 0.1% 45.7k 2M Vin = eo | om im wNarast 25 " 3 3 UT1009
4 Your tk 4)
0.1% = a5 -v -5v ERROR REFERRED TO INPUT <1% , y FOR INPUT CURRENT RANGE tnd ~ 1emA IN N “TEL LAB TYPE 081 Vour=—Los (7) = Los (jay) = -L06 (vin) av TOORRECTS FOR NONLINEARITIES DC Accurate, 10Hz, 7th Order Lowpass Bessel Filter R=16k RY =196k R’ = 196k 3 i Vin C=0.47¢F C2 =0.047 uF c1=C2 Vout 7 If im = Wane 1° ircr062 7 + -ev. 3 6 = 4 5 foux= 2kH ONE CLK’ iz T Lo]. ° ‘© WIDEBAND NOISE 52.Vans O.tuF LINEAR PHASE [ ° Viys £6V = © CLOCK TO CUTOFF FREQUENCY RATIO=200:1 eee oo
DC Accurate 10th Order Max Flat Lowpass Filter LNt | R Vour (OC ACCURATE)
0.128 R 3
Vin’ => Cc , S, 1 8 1 8 2 7 2 7 L1C1062 1C1062 = -v 3 6 3 6 sv ut t= E fe foux foux * Feurorr=0.9 x Th + c= 0.2248 {curore ‘© 60dB/0CT. SLOPE '» PASSBAND ERROR <0. 1dB FOR 0<1<0.67 foytorr '» THO =0.04%, WIDEBAND NOISE = 120V ays, © foux= 100kHz DC Accurate, Noninverting 2nd Order Lowpass Filter Gain of One, 10Hz 3rd Order Bessel DC Accurate Lowpass Filter Re Ry Rp 3 Vout Rg=5.9k AY=47.5K —AQ=2.3K og Vn 4 a “wv weap oan o2nt ~ c. C: a ul ' 7 Ir I Q=0.707, 1¢ =20Hz. FOR 1¢= 10Hz. THE RESISTOR (Ry, Az) VALUES SHOULD BE DOUBLED. Component Values naw te [A [|e] Oo | G 1 ofe fo | aa | tem | oar | 02F a 4 si6k_[ 187k | s4ak | 0220F | O47F 6 | oak [otk [ak | a.ak [02a | ore 8 | wa | 7k [sek | S49 | 02%F | o4tuF to | ork | 909k | 105k [oro | 02% | o47sF a
PACKAGE DESCRIPTION Dimensions in inches (millimeters) unless otherwise noted. H Package
8 Lead TO-5 Metal Can
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8 Lead Ceramic DIP
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8 Lead Plastic DIP
0.065 so pt oc a its Ft ” » 0.250 40.010 ro) om-oos f oe a bs |} omstoos | = Too SS
PACKAGE DESCRIPTION Dimensions in inches (millimeters) unless otherwise noted. $8 Package
8 Lead Plastic SOIC
o-kne sont oes, 71-8197), BaI0—3.988) N Package
14 Lead Plastic DIP
om 015 oasa008 ~ol[_conoms Wee we eo ioz9-0381) (905 40.381) (O48? 20.075} Gas 85) east i SS 2-196 LIT We