OP-32 AD | Alldatasheet
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P| ANALOG High-Speed (Ay,, = 10) Programmable FEATURES precision performance when the OP-32 is used with an ou . nigh MRR and PSAR “mannan IG The ability to operate at relatively high speed with low power . 3OV I eet Over tt sprotecion consumption makes this amplifier ideal for remote applica- . 2 input Overvoltage Protection vi 1. = 300, tions where power is limited. The programmability allows . ta sesninnnineinnnnnanninnnninre TINS @ ley = 300HA each amplifier in a system to be set for the minimum power . M4250 Pinout . Gai consumption necessary for each specific application. {Compensated for Minimum Gain of 10 Programmability also makes it possible to adjust the band- Availabie in Die Form width and phase shift. t The OP-32 pinout is identical to the LM4250 and many other ORDERING INFORMATION micropower operational amplifiers. This allows easy up- T,=25°C PACKAGE OPERATING grading of system performance. Vog MAX CERDIP PLASTIC TEMPERATURE Wy) OPIN PIN _RANGE ___ PIN CONNECTIONS 300 - OP32AZ" MIL
300 OP32EP OP32EZ IND
500 OP32FP OP32FZ IND
1000 OP32GP OP32GZ IND
- Fordevices processed in total compliance to MIL-STD-883, add /883 after part ao be sex" 8-PIN EPOXY DIP number. Consult factory for 883 data sheet. pat ‘ser (P-Sutfix) t Burn-in is available on commercial and industrial temperature range parts in N “at {7} vs CerDIP, plastic DIP, and TO-can packages. “18 ois our 8-PIN HERMETIC DIP an ple (Z-Suttix) GENERAL DESCRIPTION The OP-32 is a high-speed, high-gain programmable opera- tional amplifier. Both offset voltage and offset current are + DO NOT SHORT (ser TO V- OR GROUND low, and both are stable with changes in temperature, supply ‘SEE APPLICATIONS INFORMATION voltage, and set current. High CMRR and PSRR ensure SIMPLIFIED SCHEMATIC iz Pr ey o- | t ov. NULL NULL ‘ser -1-
(Note 2) 2 INI Input Voltage nnencccnnnnncnnnucnnnnnennen Supply Voltage «PACKAGE TYPE ya (Note?) je UNITS. Storage Temperature Range 8-Pin Hermetic DIP (Z) 148 16 CW Operating Temperature Range 1. Absolute maximum ratings apply to both DICE and packaged parts, unless : 0 o otherwise noted OP-32A os. essesseserssessntenneessneerneenneerstesaseeeses OS! Cto +125°C 2. @, 18 specified for worst mounting conditions, ie, @,, is specified for OP-32E, Fy G cescsscssesctntietntietantisemnneeee “25°C t0 485°C aidice in ancket for CerDIP and P-DIP packages, ELECTRICAL CHARACTERISTICS at Vs = +1.5V to + 15V, 15uA < Isy < 450nA, Ta = +25°C, unless otherwise noted. OP-32A/E OP-32F OP-32G PARAMETER SYMBOL CONDITIONS MIN TYP MAX MIN TYP MAX MIN TYP MAX UNITS Input Offset Voltage Vos — 100 300 — 200 500 — 400 1000 “wv Input Offset current los Vom=0 - - 2 - - 2 - - 3 nA Igy = 15uA - 3 5 - 5 75 a 5 10 me Current ig Igy = 15044 — 20 3 — 24 35 — 30 50 nA Igy = 450A _ 60 90 _ 70 100 _ 80 «(125 Common-Mode Ven t18¥ Rejection Ratio CURR Vege 413.8V 100 15 = 9 1100 — 85 100 — a8 (Note 2) a Power Supply Vg = +1.5V to +15V; Rejection Ratio PSRR and V-= OV, - 1 6 - 3 — 0 2 www (Note 2) V+ = 3V to 30V. Large-Signal Vs = + 18¥, vee a soain Avo R= 100k0, Igy = 154A 1000 2000 — 750 1500 — 500 1000 — Vimv
0 R= 10k21, 150uA S Igy S 450K
Vg =+1.5V Ry = 100k0, Igy = 154A +08 +088 = — +08 +088 = — +0.75 +085 — v Output Voltage y R= 10k2, 150A < Igy 45040 Swing ° Vg #15V RL = 100k0, Igy = 154A 214414200 — $144142 0 — 213841420 — v ROE TSOWAS Igy S 450A Gain-Bandwidth Igy = 15uA, Ry = 100k. — w — — 0 — — 00 — kHe Product Isy = 450uA, Ry = 10k a ed = 4500 — — 4500 — Vs = +15V, Igy = 450A, 4 _ as _ _ Slew Rate SR R= 10K0 5 1 15 Wus Vg =+15V, Iger= 1H. —- 6 7 -— 6 19 - 6 a Iser= 100A — 150 170 — 150 190 — 150 200 uA Supply Current _ i — - No Load ‘ev Iger= 304A 450 525 450 600 450 650 (Note 3} Vg = £1.5V, Iger= HA = 105 125 - on — 1" 8 Iser= 10uA. — 105 125 — 110 150 — 110 180 uA Iser = 30pA — 350 400 — 350 450 — 350 500 NOTES: 1. Igand log are measured at Voy = 0. 2. PSRR and CMRR measured with Vos unnulled and Iger held constant. 3. The supply current (Igy) is dependent on the set current (I ger) and supply voltage as follows: sy =10+ (V+)-{V-) 'ser 6 The range of Isy/Iser is approximately 10.5 to 15 over the specified operating range of Vs = + 1.5V to Vs = + 15V. -2-
ELECTRICAL CHARACTERISTICS at V, = +1.5V to +15V, 151A <I, < 450A, -55°C < T, < +125°C, unless otherwise noted. OP-32A PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS . ‘Average Input Offset Voltage Dnt (Note 1) TOVog Unnulled - os 20 avec Input Offset Voltage Vos - 175 400 Ww Input Offset Current los Vew=0 = = 2 mA ‘Average Input Offset Current Drift Telos (Notes 1, 2) - 1 10 parC . Igy = 15HA = 3 5 ley “~e, lp Igy 150HA - 20 35 A ley = 450pA - 60 90 Input Voltage Range WR V5 =215V 15.018. - - v V, =215V Common-Mode s Rejection Ratio MRR ABV SV ey $413.8 Now) oer OWA 90 110 - @ ler HA 80 90 - Power Supply Vg =215V to215V 8 Rejection Ratio PSRR V-=0v, - 2 10 vv (Note 3) V+ = 3V 10 30V (Vo y= 1.5V) Vg =215V ‘age Sona! , No Ry = 100k0, I, y= 15yA 200 400 - vimv 9° Gal A = 10k0, 150HA < Igy < 450nA 500 1000 - Vg =215V R= 100k0, ly = 15pA L ley - Output Voltage V RL = 10k0, 150uA <I < 450nA #065 30.75 y 0 2 Swing V, = 215V Ry = 100k, I, y= 15H ML sy Y 14 - A, = 10k0, 150HA < Igy < A50pA #198 #140 y Vs =t15V gers tHA - 16 18 ger = 10HA - 160 180 HA Supply Current leer = SOWA - 450 550 No Load ley -.- (Note 4) Vg =41.5V Iger= HA - 12 1“ leey= 10pA - 120 140 yA oer = 30pA - 360 450 NOTES: 1, Sample tested. 2. Ipand log are measured at Vow = 0. BURN-IN CIRCUIT* 3. PSAR and CMRR measured with Vog unnulled and Iser held constant 4. The supply current (Igy) is dependent on the set current (Iser) and supply voltage as follows: Y ‘sv (V+) = (V-) 18st 219+ MW) 'ser 6 2 U oourrur |_| ] tev “Other circuits may apply at ADI's discretion -3-
ELECTRICAL CHARACTERISTICS at Vs = +1.5V to +15V, 15uA < Isy < 450pA, -25°C < Ta < +85°C, unless otherwise noted. OP-32E OP-32F OP-32G PARAMETER SYMBOL CONDITIONS MIN TYP MAX MIN TYP MAX MIN TYP MAX UNITS - Average Input Offset _ _ le Voltage Drift (Note 1) TCVps_—_ Unnutled os 15 10 20 — 18 30 ywe Input Offset Voltage Vos. — 100 400 — 200 600 — 500 1200 wv Input Offset Current los Vom =0 - - 2 —- - 2 - - 3 nA Average Input Offset , Current Drift TClos (Notes 1, 2) — 2 10 - 3 6 — 5 2% parc Igy = 15uA —- 3 5 —- 5 75 —- 5s 10 ee Current le Igy = 150A — 20 35 — 2% 35 - 3 50 nA Igy = 45004 _ 60 90 _ 70 100 _— 80 125 ‘Common-Mode Vg=#15V & 110 _ 90 105 - = Rejection Ratio OMAR Sy = Vous +18.5V 95 80 100 4B (Note 3) Power Supply Vg = #1.5V to +15V & Rejection Ratio PSRR V-=o0Vv, — 32 10 _ 10 32 _- 32 56 BV (Note 3) V+=3V to 30V Large-Signal Ve==15¥. von 3 Avo RL = 100k0, Igy = 15uA, 750 1000 — 500 1000 — 400 1000 — = Wmv jonage Gain RL = 100, 150uA < Igy < 450A 750 1000 — 500 1000 — 400 1000 — Vg=+1.5V RL = 100k0, Igy = 15nA +070 +075 — £065 +075 — £06 407 — v Output Voltage y RL = 10kM, 150pA < Igy < 4504A Swing ° Vg= +15V RL = 100k0, Igy = 152A, #1384141 — 41364141 — +1302140 — v RL = 10k0, 150A < Igy S 45044, Ve = +15V, Iger= 1uA —- 6 8 — 1% 20 — 6 2 Iger= 108A — 160 180 — 160 200 — 160 250 uA Supply Current _ _ No Load ley Iger= 30H — 450 550 450 600 — 450 650 (Note 4) Vg=#1.5V, Iger= 1H — 2 4 -— 2 17 — 2 8 Iger= 108A — 120 140 — 120 170 — 120 200 HA Iset= 30¢A — 360 450 = 360 500 — 360 550 NOTES: 4. The supply current (1, ) is dependent on the set current (Ie) and supply 1. Sample tested. voltage as follows: 2. Ig and gg are measured at Voy, = 0. Sev gy WH= 4) 3. PSRR and CMRR measured with Vo < unnulled and I. held constant. a piceenanacrenimes mn 7, ‘p= 1. BALANCE q a en 2. INVERTING INPUT whe y rh ie 3. NONINVERTING INPUT | | Tt “EZ 4.V- 5. BALANCE a 6. OUTPUT Yaw ) Tw 7. V+ Foy ama rnyiy )) 8 Neer CAL. DIE SIZE 0.070 X 0.050 inch, 3500 sq. mils (1.78 X 1.27 mm, 2.26 sq. mm) 1 | 4A- lye =~
WAFER TEST LIMITS at V, = +1.5V to +15V, 15A <,,,< 450A, T, = 25°C, unless otherwise noted. OP-32N OP-32G OP-32GR PARAMETER SYMBOL CONDITIONS LMT Umit Limit UNITS Input Offset Voltage Vos 300 00 1000 VY MAX Input Offset Current los Voy=0 2 2 3 n”AMAX Igy = 15pA 5 75 10 sy ren Corrent lp Igy = 150A 36 35 50 nAMAX gy = 450nA 90 100 125 Input Voltage Range IVR Vg =#15V -15/13.5 -15/13.5 -15/13.5, VMIN Common-Mode Rejection Ratio MRR Vea 4a.sv 100 95 85 dB MIN (Note 2) =Nom = #1 Power Supply Vg = 21.5V 10 215V8 ti s V/V MAX Noe Ratio PSRR Vo 2 OV, V+ =3V 10 30V 6 12 25 uv Large-Signa! Vs = 215V, No Ry = 100K, Igy = 154A, 1000 750 500 Vimv MIN Voltage Gain R= 10k2, 150UA <1, < 450uA 1000 750 500 ™ Vg=215V0 | R= 100k9, gy = 15H 208 208 20.75 v MIN Output Voltage y RL = 100k, 150yA = Igy = 450uA Swing ° Vg =215V Ry = 100k, Igy = 15uA 214 214 213.8 VMIN R= 10k0, 150uA «1, « 450uA aia eer Fo 150 80 WAMAK = 10W Supply Current jeer = 30) 400 450 500 No Load Igy ser = SOWA (Note 3) Vg =215V, Igey= pA 17 19 21 Iger = 10uA 170 190 200 WA MAX Iger = 300A 525 600 650 NOTES: 1. Ig andlgg are measured atVg,, = 0. D wvy-W pan los cm sv Ww) 2. PSRR and CMRR measured with Vo « unnulled and I~ , held constant. r= 6 3. The supply current (I, ) is dependent on the set current (I~) and supply Ser voltage as follows: Electrical tests are performed at wafer probe to the limits shown. Due to variations in assembly methods and normal yield loss, yield after packaging is not guaranteed for standard ; product dice. Consult factory to negotiate specifications based on dice lot qualification through sample lot assembly and testing TYPICAL DC PERFORMANCE CHARACTERISTICS OFFSET VOLTAGE OFFSET CURRENT BIAS CURRENT vs TEMPERATURE vs TEMPERATURE vs TEMPERATURE 8 10 Clo . » 0 gol vectevrorwvy | | | | | ¢ 5 + = § on A e -EtLi ty tt] ¢ | eee Pee. : a 3 ITA PL] °C SEE een CN, 3 Le ii] : TTT TT © »s aol. | | [ [1 [J ° F ye 80250258075 100 Tas a oy 8050350 S 002 TEMPERATURE (’C) TEMPERATURE (°C) TEMPERATURE (*C) x
TYPICAL DC PERFORMANCE CHARACTERISTICS OFFSET VOLTAGE OFFSET CURRENT BIAS CURRENT vs SUPPLY CURRENT vs SUPPLY CURRENT vs SUPPLY CURRENT - 1000 - aa 000 SS a 0 Se ee | ra a_i A Com — at aa _ a a A | | SLs Ct, 7
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BIAS CURRENT vs vs SUPPLY CURRENT AT OPEN-LOOP GAIN (COMMON-MODE VOLTAGE Vs = +15V, +5V AND +1.5V vs SUPPLY CURRENT o—— 100 ee EE Etsy = ova | Fta- vere FSR us a tr eet avait | | peas . ES : | bey | : Fee ie PITT vee Th Pf | | | 6: ee ee a 2 Eee ss? OG eee 2 oe Se ae A [| Tl | aad n0 oa sks a Ss cl gor LLL Co wot | TTT TT SUPPLY CURRENT vs SET RESISTOR NOTH iad wo UU TTT ll
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TYPICAL DC OPEN-LOOP INPUT-OUTPUT CHARACTERISTICS Igy = 1mA, Ry = 100k Igy = 1mA, R= 10k Igy = 1mA, Ru = 2k. . a * _ wo | | pesto Nentev 5° a aaa 2 OR i 5 | a _ L aoe 20 Li i.) } ] 4] 2 i jj 25-20-15 10-5 0 5 1 15 20 2 20-15 -10-5 0-6 10 1 20 25 5-7-5 0-5 0 5 1 15 20 25 oureuT (vouTs) oureur vous) oureur wwours) Igy = 100yA, Ry = 100k0 Igy = 100uA, Ry = 10k. Igy = 1004A, Ry = 2k SaSSReee ‘ae ' Se 25-20-15 -10 5 0 5 10 15 2-25 2-20-15 -10-5 05 10-15 20 25 BOs 06 1 eS ourrur ivours) ourrur (vouTs) ourrur (vos) Igy = 10uA, Ry = 100k. Isy = 104A, R= 10k0 TEST CIRCUIT t Vs = £15V i Vg = t15V vy 5 ; 5 . co 20 i J , SEES Ses os 2-20-15 -10 5 0 5 10 15 20 28 2-20-15 10-5 0 8 10 15 20 25 vy our ourrur wvours) ourrur (vours) -7-
TYPICAL AC PERFORMANCE CHARACTERISTICS GAIN-BANDWIDTH PRODUCT SLEW RATE vs POWER SUPPLY REJECTION ~ vs SUPPLY CURRENT SUPPLY CURRENT vs SUPPLY CURRENT Rok ems a Sed esti aa mi 3 eed sili Sra Eta | S © Ft £ asset ae Joe eet eee es) s — EERE Tg Hag 3 ERRHAARHS a of | TTT Toe a CoO ya com 2 COO Bal ormratve tiv ronsv | | [TTT erg ZA ry 2
2 ESSE aad 3 Sea 1m | |
a ooo7 0 Ee ca eclises AL | fy SALE woe ZL TTT TTT oor LLIN PETIT CTT wot LL UTE TT TT 1 10 100 1000 1 0 100 1000 10 100 1000, COMMON-MODE REJECTION COMMON-MODE REJECTION COMMON-MODE REJECTION vs FREQUENCY vs TEMPERATURE vs SUPPLY CURRENT vo v0 v0 RUN a [went |] TTT] vo Loom TT TT TTT cs eae es =e owl oS oN eal TT TTT) g SC e TN Tg ell ma 0 0 a Ell ia i i Bi 11 eI ANTI) SS 3 eee 1 000 80 00 Ni » mili . "TELLLLLTL| a he SCOUT TTT TTT . a | TOTAL HARMONIC TOTAL HARMONIC VOLTAGE NOISE DISTORTION vs FREQUENCY DISTORTION vs FREQUENCY vs FREQUENCY 10 38 to iad 1000 > ypottttith | cult Mh. 3 zoo of Ae tll So CUTIES IM, 2 = co AAIII ervem UTM 2 2 SCTE Eon NSH eg 2 com ppa opamp oT) BM emer TITMM 8 ce leeeTING IM TTI, & 2 EGRESS td 2 0.003 Ce wo 2 a 0003 CI Ngee ill we 8 Es, nan sant vo ani a 2 om Nae. °C Se coer TT COTES CCI -8-
w — TYPICAL AC PERFORMANCE CHARACTERISTICS SMALL-SIGNAL TRANSIENT RESPONSE vs SUPPLY CURRENT Isy = 1.5pA Isy = 7.54A Igy = 152A say TE TT Sony iT soy TT a ee se 1oav Lil ys tp Lil 10puS 1gav Li SOMS Isy = 150uA Igy = 450uA. Igy = 750uA. soy ET sv Soay pil { { \\ | \\ \\ i \\ } \\ — he ov pot i ov i ow jeep ad j Iga¥ Lt ows 10ay i 15 1pav i i 0pn'S: Isy=1.5mA TEST CIRCUIT sv \\ TT . +18v yt af ? 10K52 ee § ¢& sons i0ey : H j gn V V xX V .
- TYPICAL AC PERFORMANCE CHARACTERISTICS LARGE-SIGNAL TRANSIENT RESPONSE vs SUPPLY CURRENT Igy = 1.54 Isy = 7.5uA Igy = 15HA a aa Pa aa wT LLL: Igy = 150uA Igy = 450pA Igy = 750uA sy PT sy TT q wo TT ET az | a H : ov feeespenefpaceageneet ow ov or ee ee ee ee eS Isy=1.5mA TEST CIRCUIT sy Py ev
9 Reo
. “ Lt | aa pS (im & eee v - pf 9 Rp = VIKA, Rep = 10K, Ry = 100K ov -11-
APPLICATIONS INFORMATION CURRENT SETTING CIRCUITS SETTING SUPPLY CURRENT The op amp power supply current is determined by the current flowing out of pin 8. Pin 8 is at the V+ voltage less two vos — diode drops, which is approximately V+ minus 1.1V. Do not A | connect pin 8 to ground or V- without a set resistor in series -- Z orexcessive supply current will be drawn which may damage £ -- the OP-32. _ a fa The set resistor value is selected to make the power supply ‘eer current optimum for the specific application. Adjusting the 2Na1184, OP-32 power supply current determines the slew-rate, bandwidth, and the output current limits (see Performance Characteristics). The supply current is nominally 15 times the set current and the set resistor value is calculated from: ven -- Ve -1.1V) Iser * Pa. Rs= ( Sueut ) where Isy = 15 Isey (a) Ise ~ agai’ '0ss > 'ser SET (See graph below) Note that the set resistor can go to either negative supply or vos ~~ to ground. If the set resistor goes to negative supply, then A ‘toma Vsuppty = (V+) - (V-). Fora single-supply circuit, Vsuppty is -- simply (V+). If the supply voltage varies widely, set current -- can be stabilized with circuits (a), (b), or (c). -- 3 The relationship between supply voltage, supply current and set current can be approximated by: =(V- 2 Isy 2494 WHA) (7, 95°C) Iser 6 The ratio Pa increases with temperature by approximately 7 Set vena -- 0.05%/°C. i WOE () set ar SUPPLY CURRENT vs TEMPERATURE v 170 wee --
2 L+7T Tis -- NY
' a —., . 8 -- a oer T | | ek : z 3 -- 2 eee et tT Te. § 3 — z van -- LETT TTT. noe “75-60-25 0-25 «80 75 100 125 ser AT TEMPERATURE Cc) (ce) INPUT BIAS CURRENT Input bias current varies directly with set current. The set current required for a given supply current ranges from Igy/10.5 at + 1.5V supply voltage to Igy/15 at + 15V. Therefore, Ig will be highest at the minimum supply voltage condition of +1.5V (or 3V) for any given supply current. -12-
-_ w OP-32 OFFSET NULLING CIRCUIT BATTERY-POWERED, GAIN-OF-100 AMPLIFIER ve a R2 9 05K 800Ks2 } 2 7 . ov weut P: oun IN| ° 3 100Ks2 ~ vy vu al. Gq Vo « 100V4n Rs rem “ Figure 1 $v OFFSET VOLTAGE ADJUSTMENT Using an OP-32B/F, we can expect an Ig + Ios/2 of less than The offset voltage can be trimmed to zero using a 100kN 8.5nA when operating at Isy of 154A, so the input offset potentiometer (see offset nulling circuit). Adjusting the pot caused by IgR; will be negligible (8.5nA X 5.05kN ~ 43uV). wiper towards pin 5 causes the output to go positive. - . Adjustment range is approximately +5mVat Vs = +15V. The The set resistor Ris needed for a supply current of 15uA is Vos adjust range is proportional to supply voltage. Resolu- tion of the nulling can be increased by using a smaller pot in Re = Vsuppiy—1.1V_ 18V-1.1V conjunction with fixed resistors. s= Isgy/15 ~ 1pA If power supply voltages vary widely and the set current is 2. Rg = 16.9M0. established by a resistor, the op amp supply currents will vary in proportion to the supply voltage changes. Vog will remain Offset voltage adjustment is optional. An OP-32B/F has almost constant with supply current changes if the null pins maximum input offset voltage of 500uV which would cause (1 and 5) are not used. If a Vos adjust pot is used, current an output offset voltage of 50mvV. Drift over temperature is variations may flow through the offset pot causing an very low, typically less than 1.0u/°C, and is guaranteed to be apparent Vos change. If a Vos adjust pot is used in combina- less than 2.0uV/°C. PSRR is also low, only 6uV/V, so battery tion with widely-varying supply voltages, a set-current voltage change has negligible effect on offset. stabilizer circuit as shown in (a), (b), or (c) is recommended. Most micropower programmable op amps lose open-loop APPLICATIONS EXAMPLE gain and CMRR at low supply currents. The OP-32 design overcomes these limitations so accuracy is maintained at BATTERY-POWERED, GAIN-OF-100 AMPLIFIER . supply currents of only a few microamps. The OP-32B/F The simple noninverting amplifier circuit shown in Figure 1 used in this example has a minimum open-loop gain of over Provides an accurate gain-of-100 while operating from a pair 117dB. Gain error due to finite open-loop gain will be less of 9V batteries. The circuit requires only 15uA of supply than 100/750,000, which is only 133 PPM. CMRR will typically current. Slew-rate is approximately 0.06W/usec and output he 14048, an error of 3PPM. Gain accuracy of the circuit is swing is +8V. almostentirely dependent on the accuracy of the Ry/Re ratio; A value of 500kf was chosen for Ro. For a gain of 100, R; is the op amp contributes less than 0.015% gain error. calculated as: Considering all error sources, this simple 100 battery- Avy =14 82 powered circuit using an OP-32B/F is capable of achieving veL Ry excellent accuracy. Without external adjustments of any kind, output offset will be less than 54mV and gain accuracy 100 =1+ 500kN will be better than +0.015% (exclusive of Ro/R; error). Gain R, linearity, slew-rate symmetry, and stability over temperature are all excellent with the OP-32, making circuit performance © Ry =5.05k0 very predictable. 2-632 OPERATIONAL AMPLIFIERS REV. C