Order this document by MC1776C/D This extremely versatile operational amplifier features low power consumption and high input impedance. In addition, the quiescent currents within the device may be programmed by the choice of an external resistor value or current source applied to the Iset input. This allows the amplifier’s characteristics to be optimized for input current and power consumption despite wide variations in operating power supply voltages. • ±1.2 V to ±18 V Operation • • • • • PROGRAMMABLE OPERATIONAL AMPLIFIER SEMICONDUCTOR TECHNICAL DATA Wide Programming Range Offset Null Capability No Frequency Compensation Required Low Input Bias Currents Short Circuit Protection 8 1 P1 SUFFIX PLASTIC PACKAGE CASE 626 Resistive Programming (See Figure 1) Rset to Ground Rset to Negative Supply (Recommended for supply voltage less than ± 6.0 V) 7 VCC 2 2 – 3 6 3 + 8 Rset 4 VCC – 0.6 Rset 1 – D SUFFIX PLASTIC PACKAGE CASE 751 (SO–8) 6 + 8 Rset 4 Iset = VEE 8 7 VCC VEE Typical Rset Values Iset = VCC – 0.6 – VEE Rset Typical Rset Values VCC, VEE Iset = 1.5 µA Iset = 15 µA VCC, VEE Iset = 1.5 µA Iset = 15 µA ± 6.0 V ± 10 V ± 12 V ± 15 V 3.6 MΩ 6.2 MΩ 7.5 MΩ 10 MΩ 360 kΩ 620 kΩ 750 kΩ 1.0 MΩ ± 1.5 V ± 3.0 V ± 6.0 V ± 15 V 1.6 MΩ 3.6 MΩ 7.5 MΩ 20 MΩ 160 kΩ 360 kΩ 750 kΩ 2.0 MΩ PIN CONNECTIONS Offset Null 1 Invert 2 – 7 Noninvert 3 + 6 Output VEE 4 5 Offset Null Input Active Programming FET Current Source 2 3 7 – 2 VCC 6 + 4 Bipolar Current Source VEE 8 3 6 + 4 8 VEE Q ORDERING INFORMATION VB Device R VEE Pins not shown are not connected. Operating Temperature Range MC1776CD MC1776CP1 Motorola, Inc. 1996 MOTOROLA ANALOG IC DEVICE DATA Iset VCC (Top View) 7 – VG VEE 8 Package SO–8 TA = 0° to +70°C Plastic DIP Rev 5 1 MC1776C MAXIMUM RATINGS (TA = +25°C, unless otherwise noted.) Symbol Value Unit Power Supply Voltages VCC,VEE ±18 Vdc Differential Input Voltage VID ±30 Vdc Rating Common Mode Input Voltage VCC and |VEE| 15 V VCC and |VEE| 15 V VICM t w Vdc VCC,VEE ±15 Voff–VEE ±0.5 Vdc Programming Current Iset 500 µA Programming Voltage (Voltage from Iset Terminal to Ground) Vset (VCC –2.0 V) to VCC Vdc Output Short Circuit Duration (Note 1) tSC Indefinite sec Operating Temperature Range TA 0 to +70 °C Tstg –65 to +150 °C TJ 150 °C Offset Null to VEE Voltage Storage Temperature Range Junction Temperature NOTE 1. May be to ground or either supply voltage. Rating applies up to a case temperature of +125°C or ambient temperature of +70°C and Iset ≤ 30 µA. Representative Schematic Diagram 8 2 Inputs 3 Iset 7 – VCC 50 + 2.0 k 100 6 100 30 pF Output 100 1 Offset Null 5 50 10 k 10 k 4 Voltage Offset Null Circuit 2 – 8 Rset Transient Response Test Circuit 2 7 VCC 6 + 3 1 4 3 7 6 4 Vin VEE VO + 8 CL RL Rset VEE 2 VCC – 5 100 k VEE Pins not shown are not connected. MOTOROLA ANALOG IC DEVICE DATA MC1776C ELECTRICAL CHARACTERISTICS (VCC = +3.0 V, VEE = –3.0 V, Iset = 1.5 µA, TA = +25°C, unless otherwise noted.*) Characteristic Symbol Input Offset Voltage (RS ≤ 10 kΩ) TA = +25°C Tlow* ≤ TA ≤ Thigh* VIO Offset Voltage Adjustment Range VIOR Input Offset Current TA = +25°C TA = Thigh TA = Tlow IIO Input Bias Current TA = +25°C TA = Thigh TA = Tlow IIB Min Typ Max – – 2.0 – 6.0 7.5 – 9.0 – – – – 0.7 – – 6.0 6.0 10 – – – 2.0 – – 10 10 20 Unit mV mV nA nA Input Resistance ri – 50 – MΩ Input Capacitance ci – 2.0 – pF +1.0 – – 25 k 25 k 200 k – – – ±2.0 ±2.4 – ro – 5.0 – kΩ ISC – 3.0 – mA 70 86 – – 25 200 – – 13 – 20 25 – – 78 – 120 150 tTLH os – – 3.0 0 – – µs % SR – 0.03 – V/µs Input Voltage Range Tlow ≤ TA ≤ Thigh Large Signal Voltage Gain RL ≥ 75 kΩ, VO = ±1.0 V, TA = +25°C RL ≥ 75 kΩ, VO = ±1.0 V, Tlow ≤ TA ≤ Thigh Output Voltage Swing RL ≥ 75 kΩ, Tlow ≤ TA ≤ Thigh Output Resistance Output Short Circuit Current Common Mode Rejection VID AVOL VO Supply Current TA = +25°C Tlow ≤ TA ≤ Thigh ICC, IEE Power Dissipation TA = +25°C Tlow ≤ TA ≤ Thigh PD Slew Rate (RL ≥ 5.0 kΩ) *Tlow = 0°C V dB µV/V PSRR RS ≤ 10 kΩ, Tlow ≤ TA ≤ Thigh Transient Response (Unity Gain) Vin = 20 mV, RL ≥ 5.0 kΩ, CL = 100 pF Rise Time Overshoot V/V CMR RS ≤ 10 kΩ, Tlow ≤ TA ≤ Thigh Supply Voltage Rejection Ratio V µA µW Thigh = +70°C MOTOROLA ANALOG IC DEVICE DATA 3 MC1776C ELECTRICAL CHARACTERISTICS (VCC = +3.0 V, VEE = –3.0 V, Iset = 15 µA, TA = +25°C, unless otherwise noted.*) Characteristic Symbol Input Offset Voltage (RS ≤ 10 kΩ) TA = +25°C Tlow* ≤ TA ≤ Thigh* VIO Offset Voltage Adjustment Range VIOR Input Offset Current TA = +25°C TA = Thigh TA = Tlow IIO Input Bias Current TA = +25°C TA = Thigh TA = Tlow IIB Min Typ Max – – 2.0 – 6.0 7.5 – 18 – – – – 2.0 – – 25 25 40 – – – 15 – – 50 50 100 Unit mV mV nA nA Input Resistance ri – 5.0 – MΩ Input Capacitance ci – 2.0 – pF ±1.0 – – 25 k 25 k 200 k – – – ±2.0 ±2.1 – ro – 1.0 – kΩ ISC – 5.0 – mA 70 86 – – 25 200 – – 130 – 170 180 – – 780 – 1020 1080 tTLH os – – 0.6 5.0 – – µs % SR – 0.35 – V/µs Input Voltage Range Tlow ≤ TA ≤ Thigh Large Signal Voltage Gain RL ≥ 5.0 kΩ, VO = ±1.0 V, TA = +25°C RL ≥ 5.0 kΩ, VO = ±1.0 V, Tlow ≤ TA ≤ Thigh Output Voltage Swing RL ≥ 5.0 kΩ, Tlow ≤ TA ≤ Thigh Output Resistance Output Short Circuit Current VID AVOL VO Common Mode Rejection RS ≤ 10 kΩ, Tlow ≤ TA ≤ Thigh CMR Supply Voltage Rejection Ratio RS ≤ 10 kΩ, Tlow ≤ TA ≤ Thigh PSRR Supply Current TA = +25°C Tlow ≤ TA ≤ Thigh ICC, IEE Power Dissipation TA = +25°C Tlow ≤ TA ≤ Thigh PD Transient Response (Unity Gain) Vin = 20 mV, RL ≥ 5.0 kΩ, CL = 100 pF Rise Time Overshoot Slew Rate (RL ≥ 5.0 kΩ) *Tlow = 0°C 4 V V/V V dB µV/V µA µW Thigh = +70°C MOTOROLA ANALOG IC DEVICE DATA MC1776C ELECTRICAL CHARACTERISTICS (VCC = +15 V, VEE = –15 V, Iset = 1.5 µA, TA = +25°C, unless otherwise noted.*) Characteristic Symbol Input Offset Voltage (RS ≤ 10 kΩ) TA = +25°C Tlow* ≤ TA ≤ Thigh* VIO Offset Voltage Adjustment Range VIOR Input Offset Current TA = +25°C TA = Thigh TA = Tlow IIO Input Bias Current TA = +25°C TA = Thigh TA = Tlow IIB Min Typ Max – – 2.0 – 6.0 7.5 – 9.0 – – – – 0.7 – – 6.0 6.0 10 – – – 2.0 – – 10 10 20 Unit mV mV nA nA Input Resistance ri – 50 – MΩ Input Capacitance ci – 2.0 – pF ±10 – – 50 k 50 k 400 k – – – ±12 ±10 ±14 – – – Input Voltage Range Tlow ≤ TA ≤ Thigh Large Signal Voltage Gain RL ≥ 75 kΩ, VO = ±10 V, TA = +25°C RL ≥ 75 kΩ, VO = ±10 V, Tlow ≤ TA ≤ Thigh VID V AVOL V/V Output Voltage Swing RL ≥ 75 kΩ, TA = +25°C RL ≥ 75 kΩ, Tlow ≤ TA ≤ Thigh VO Output Resistance ro – 5.0 – kΩ ISC – 3.0 – mA 70 90 – – 25 200 – – 20 – 30 35 – – 780 – 0.9 1.05 tTLH os – – 1.6 0 – – µs % SR – 0.1 – V/µs Output Short Circuit Current Common Mode Rejection RS ≤ 10 kΩ, Tlow ≤ TA ≤ Thigh CMR Supply Voltage Rejection Ratio RS ≤ 10 kΩ, Tlow ≤ TA ≤ Thigh PSRR Supply Current TA = +25°C Tlow ≤ TA ≤ Thigh ICC, IEE Power Dissipation TA = +25°C Tlow ≤ TA ≤ Thigh PD Transient Response (Unity Gain) Vin = 20 mV, RL ≥ 5.0 kΩ, CL = 100 pF Rise Time Overshoot Slew Rate (RL ≥ 5.0 kΩ) *Tlow = 0°C V dB µV/V µA mW Thigh = +70°C MOTOROLA ANALOG IC DEVICE DATA 5 MC1776C ELECTRICAL CHARACTERISTICS (VCC = +15 V, VEE = –15 V, Iset = 15 µA, TA = +25°C, unless otherwise noted.*) Characteristic Symbol Input Offset Voltage (RS ≤ 10 kΩ) TA = +25°C Tlow* ≤ TA ≤ Thigh* VIO Offset Voltage Adjustment Range VIOR Input Offset Current TA = +25°C TA = Thigh TA = Tlow IIO Input Bias Current TA = +25°C TA = Thigh TA = Tlow IIB Min Typ Max – – 2.0 – 6.0 7.5 – 18 – – – – 2.0 – – 25 25 40 – – – 15 – – 50 50 100 Unit mV mV nA nA Input Resistance ri – 5.0 – MΩ Input Capacitance ci – 2.0 – pF ±10 – – 50 k 50 k 400 k – – – ±10 ±10 ±13 – – – Input Voltage Range Tlow ≤ TA ≤ Thigh Large Signal Voltage Gain RL ≥ 5.0 kΩ, VO = ±10 V, TA = +25°C RL ≥ 75 kΩ, VO = ±10 V, Tlow ≤ TA ≤ Thigh VID V AVOL V/V Output Voltage Swing RL ≥ 5.0 kΩ, TA = +25°C RL ≥ 75 kΩ, Tlow ≤ TA ≤ Thigh VO Output Resistance ro – 1.0 – kΩ ISC – 12 – mA 70 90 – – 25 200 – – 160 – 190 200 – – – – 5.7 6.0 tTLH os – – 0.35 10 – – µs % SR – 0.8 – V/µs Output Short Circuit Current Common Mode Rejection RS ≤ 10 kΩ, Tlow ≤ TA ≤ Thigh CMR Supply Voltage Rejection Ratio RS ≤ 10 kΩ, Tlow ≤ TA ≤ Thigh PSRR Supply Current TA = +25°C Tlow ≤ TA ≤ Thigh ICC, IEE Power Dissipation TA = +25°C Tlow ≤ TA ≤ Thigh PD Transient Response (Unity Gain) Vin = 20 mV, RL ≥ 5.0 kΩ, CL = 100 pF Rise Time Overshoot Slew Rate (RL ≥ 5.0 kΩ) *Tlow = 0°C 6 V dB µV/V µA µW Thigh = +70°C MOTOROLA ANALOG IC DEVICE DATA MC1776C Figure 2. Positive Standby Supply Current versus Set Current R set , SET RESISTOR ( Ω ) 100 M VCC = +15 V VEE = –15 V Rset to VEE 10 M VCC = +3.0 V VEE = –3.0 V Rset to VEE 1.0 M VCC = +15 V VEE = –15 V Rset to GND VCC = +3.0 V VEE = –3.0 V Rset to GND 100 k 10 k 0.1 1.0 10 100 POSITIVE STANDBY SUPPLY CURRENT ( µA) Figure 1. Set Current versus Set Resistor 1000 +3.0 V ≤ VCC ≤ +18 V –3.0 V ≥ VEE ≥ –18 V 100 10 1.0 0.1 0.01 0.1 Figure 3. Open Loop Gain versus Set Current VCC = +15 V VEE = –15 V RL = 75 k I IB , INPUT BIAS CURRENT (nA) A VOL, OPEN LOOP GAIN (V/M) 100 100 106 VCC = +3.0 V VEE = –3.0 V 105 104 0.1 1.0 10 10 +3.0 V ≤ VCC ≤ +18 V –3.0 V ≥ VEE ≥ –18 V 1.0 0.1 0.01 100 0.1 Iset, SET CURRENT (µA) 30 +3.0 V ≤ VCC ≤ +18 V –3.0 V ≥ VEE ≥ –18 V 24 18 Iset = 1.5 µA 12 Iset = 1.5 µA 6.0 –40 –20 0 20 40 60 80 T, TEMPERATURE (°C) MOTOROLA ANALOG IC DEVICE DATA 100 1.0 10 Iset, SET CURRENT (µA) 100 Figure 6. Gain Bandwidth Product versus Set Current GBW, GAIN BANDWIDTH PRODUCT (Hz) Figure 5. Input Bias Current versus Ambient Temperature I IB , INPUT BIAS CURRENT (nA) 10 Figure 4. Input Bias Current versus Set Current 107 0 –60 1.0 Iset, SET CURRENT (µA) Iset, SET CURRENT (µA) 120 140 10 M 1.0 M VCC = +15 V VEE = –15 V VCC = +3.0 V VEE = –3.0 V 100 k 10 k 1.0 k 0.1 1.0 10 100 Iset, SET CURRENT (µA) 7 MC1776C Figure 8. Supply Current versus Ambient Temperature 30 150 VCC = +15 V VEE = –15 V 24 Iset = 15 µA I S , SUPPLY CURRENT ( µA) V O(pp), PEAK–TO–PEAK OUTPUT VOLTAGE SWING (V) Figure 7. Output Voltage Swing versus Load Resistance VCC = +15 V VEE = –15 V Iset = 1.5 µA 18 12 VCC = +3.0 V VEE = –3.0 V 1.5 µA ≤ Iset ≤ 15 µA 6.0 0 1.0 k 10 k 100 k 120 90 60 30 RL, LOAD RESISTANCE (Ω) –20 0 60 80 100 120 140 10 36 32 28 Iset = 15 µA RL = 5.0 k 1.5 µA ≤ Iset ≤ 15 mA RL = 75 k 24 20 SR, SLEW RATE (Vµ s) VO,OUTPUT VOLTAGE SWING (V) 40 Figure 10. Slew Rate versus Set Current 40 Iset = 1.5 µA RL = 5.0 k 16 12 1.0 0.1 VCC = +15 V VEE = –15 V VCC = +3.0 V VEE = –3.0 V 0.01 8.0 4.0 0 0 2.0 4.0 6.0 8.0 10 12 14 16 18 20 1.0 10 Iset, SET CURRENT (µA) Figure 11. Input Noise Voltage versus Set Current Figure 12. Optimum Source Resistance for Minimum Noise versus Set Current 10–14 f = 1.0 kHz ∆1 = Hz +3.0 V ≤ VCC ≤ +18 V –3.0 V ≥ VEE ≥ –18 V 10–16 10–17 0.01 0.1 VCC, (VEE), SUPPLY VOLTAGES (V) 10–13 10–15 0.001 0.01 OPTIMUM SOURCE RESISTANCE (M Ω ) V(RMS), MEAN SQUARE VOLTAGE(V 2/Hz) 20 T, AMBIENT TEMPERATURE (°C) Figure 9. Output Voltage Swing versus Supply Voltage 8 Iset = 1.5 µA VCC = +3.0 V VEE = –3.0 V Iset = 1.5 µA VCC = +15 V VEE = –15 V 0 –60 –40 1.0 M Iset = 15 µA VCC = +3.0 V VEE = –3.0 V Iset = 1.5 µA VCC = +15 V VEE = –15 V 0.1 1.0 Iset, SET CURRENT (µA) 10 100 100 100 10 1.0 0.1 0.01 0.1 1.0 Iset, SET CURRENT (µA) 10 100 MOTOROLA ANALOG IC DEVICE DATA MC1776C Figure 13. Wien Bridge Oscillator Figure 15. Multiple Feedback Bandpass Filter (1.0 kHz) 22 k C 200 k 10 k +15 V Input 3 6 MC1776C 8 4 Rset C 1 fo = 2π RC 2.0 M R1 = 160 k R2 = 820 R5 = 300 k C = 0.01 µF for a 1.0 kHz filter with Q = 10 and A (fo) = 1 R R 8 4 –15 V C –15 V (for fo = 1.0 kHz) Figure 16. Gated Amplifier R= 16 kΩ C = 0.01 µF 1M 2 10 k +15 V 7 – 6 MC1776C + Input Vin R1 C 2 3 + 4 For a given: fo = center frequency A (fo) = Gain at center frequency Q = quality factor VCC 15 V 270 k MC1776C R2 –15 V 2.7 M 7 – 4 8 10 k VCC R5 Output 3 Figure 14. Multiple Feedback Bandpass Filter C 6 Output + R2 VO + 7 – MC1776C – 3 +15 V 2 C 7 2 R5 R1 6 10 k VO Q Gate 5.6 k 8 Rset VEE Choose a value for C, then Q R5 = πfoC R5 R1 = 2A (fo) R1,R5 R2 = 4Q2 R1–R5 To obtain less than 10% error from the operational amplifier: QO fo ≤ 0.1 GBW where fo and GBW are expressed in Hz. GBW is available from Figure 6 as a function of Set Current, Iset. MOTOROLA ANALOG IC DEVICE DATA Figure 17. High Input Impedance Amplifier 10 k 50 M +15 V 500 k Input 500 k 2 6 MC1776C 3 + 8 50 M 90 k 7 – Output 4 –15 V 30 M 9 MC1776C OUTLINE DIMENSIONS P1 SUFFIX PLASTIC PACKAGE CASE 626–05 ISSUE K 8 5 –B– 1 NOTES: 1. DIMENSION L TO CENTER OF LEAD WHEN FORMED PARALLEL. 2. PACKAGE CONTOUR OPTIONAL (ROUND OR SQUARE CORNERS). 3. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 4 F –A– NOTE 2 L DIM A B C D F G H J K L M N C J –T– N SEATING PLANE D M K G H 0.13 (0.005) M T A M B MILLIMETERS MIN MAX 9.40 10.16 6.10 6.60 3.94 4.45 0.38 0.51 1.02 1.78 2.54 BSC 0.76 1.27 0.20 0.30 2.92 3.43 7.62 BSC ––– 10_ 0.76 1.01 INCHES MIN MAX 0.370 0.400 0.240 0.260 0.155 0.175 0.015 0.020 0.040 0.070 0.100 BSC 0.030 0.050 0.008 0.012 0.115 0.135 0.300 BSC ––– 10_ 0.030 0.040 M D SUFFIX PLASTIC PACKAGE CASE 751–05 (SO–8) ISSUE R D A NOTES: 1. DIMENSIONING AND TOLERANCING PER ASME Y14.5M, 1994. 2. DIMENSIONS ARE IN MILLIMETERS. 3. DIMENSION D AND E DO NOT INCLUDE MOLD PROTRUSION. 4. MAXIMUM MOLD PROTRUSION 0.15 PER SIDE. 5. DIMENSION B DOES NOT INCLUDE MOLD PROTRUSION. ALLOWABLE DAMBAR PROTRUSION SHALL BE 0.127 TOTAL IN EXCESS OF THE B DIMENSION AT MAXIMUM MATERIAL CONDITION. C 8 5 0.25 H E M B M 1 4 h B e X 45 _ q A C SEATING PLANE L 0.10 A1 B 0.25 10 M C B S A S DIM A A1 B C D E e H h L q MILLIMETERS MIN MAX 1.35 1.75 0.10 0.25 0.35 0.49 0.18 0.25 4.80 5.00 3.80 4.00 1.27 BSC 5.80 6.20 0.25 0.50 0.40 1.25 0_ 7_ MOTOROLA ANALOG IC DEVICE DATA MC1776C Motorola reserves the right to make changes without further notice to any products herein. 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MOTOROLA ANALOG IC DEVICE DATA 11 MC1776C How to reach us: USA / EUROPE / Locations Not Listed: Motorola Literature Distribution; P.O. Box 20912; Phoenix, Arizona 85036. 1–800–441–2447 or 602–303–5454 JAPAN: Nippon Motorola Ltd.; Tatsumi–SPD–JLDC, 6F Seibu–Butsuryu–Center, 3–14–2 Tatsumi Koto–Ku, Tokyo 135, Japan. 03–81–3521–8315 MFAX: [email protected] – TOUCHTONE 602–244–6609 INTERNET: http://Design–NET.com ASIA/PACIFIC: Motorola Semiconductors H.K. Ltd.; 8B Tai Ping Industrial Park, 51 Ting Kok Road, Tai Po, N.T., Hong Kong. 852–26629298 12 ◊ *MC1776C/D* MOTOROLA ANALOG IC DEVICE DATA MC1776C/D