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| MIC861 Micrel MIC861 TeenyTM Ultra Low Power Op Amp Preliminary Information General Description The MIC861 is a rail-to-rail output, input common-mode to ground, operational amplifier in TeenyTM SC70 packaging. The MIC861 provides 400kHz gain-bandwidth product while consuming an incredibly low 4.6A supply current. The SC70 packaging achieves significant board space savings over devices packaged in SOT-23 or MSOP-8 packaging. The SC70 occupies approximately half the board area of a SOT-23 package. Features * * * * * * * * TeenyTM SC70 packaging 400kHz gain-bandwidth product 650kHz, -3dB bandwidth 4.6A supply current Rail-to-Rail output Ground sensing at input (common mode to GND) Drives large capactive loads (1000pF) Unity gain stable Applications * * * * * Portable equipment PDAs Pagers Cordless Phones Consumer Electronics Ordering Information Part Number MIC861BC5 Marking A33 Ambient Temp. Range* -40C to +85C Package SC70-5 Pin Configuration Functional Pinout IN-- V-- IN+ 3 2 1 IN-- V-- IN+ Part Identification 3 2 1 A33 4 5 4 5 OUT V+ OUT V+ SC-70 Teeny is a trademark of Micrel, Inc. Micrel, Inc. * 1849 Fortune Drive * San Jose, CA 95131 * USA * tel + 1 (408) 944-0800 * fax + 1 (408) 944-0970 * http://www.micrel.com June 2001 1 MIC861 MIC861 Micrel Absolute Maximum Ratings (Note 1) Supply Voltage (VV+ - V-) ......................................... +6.0V Differentail Input Voltage (VIN+ - VIN-), Note 4 ...... +6.0V Input Voltage (VIN+ - VIN-) .................. V+ + 0.3V, V- -0.3V Lead Temperature (soldering, 5 sec.) ....................... 260C Output Short Circuit Current Duration .................. Indefinite Storage Temperature (TS) ........................................ 150C ESD Rating, Note 3 Operating Ratings (Note 2) Supply Voltage (V+ - V-) ........................ +2.43V to +5.25V Ambient Temperature Range ..................... -40C to +85C Package Thermal Resistance ............................... 450C/W Electrical Characteristics V+ = +2.7V, V- = 0V, VCM = V+/2; RL= 500k to V+/2; TA= 25C, unless otherwise noted. Bold values indicate -40C TA +85C. Symbol VOS IB IOS VCM CMRR PSRR AVOL VOUT VOUT GBW BW SR ISC IS Parameter Input Offset Voltage Input Offset Voltage Temp Coefficient Input Bias Current Input Offset Current Input Voltage Range Common-Mode Rejection Ratio Power Supply Rejection Ratio Large-Signal Voltage Gain CMRR > 60dB 0 < VCM < 1.35V Supply voltage change of 3V RL = 100k, VOUT 2V peak to peak RL = 500k, VOUT 2V peak to peak Maximum Output Voltage Swing Minimum Output Voltage Swing Gain-Bandwidth Product -3dB Bandwidth Slew Rate Short-Circuit Output Current RL = 500k RL = 500k RL = 200k, CL = 2pF, VOUT = 0 AV = 1, CL = 2pF, RL = 1M AV = 1, CL = 2pF, RL = 1M Source Sink Supply Current No Load 45 50 60 73 Condition Note 5 Min -10 Typ 2 15 20 10 1.8 77 83 74 83 Max 10 Units mV V/C pA pA V dB dB dB dB V V kHz kHz V/s mA mA 9 A V+-2mV V+-0.7mV V-+0.2mV V-+ 2mV 350 500 0.12 6 5 4.2 V+= +5V, V-= 0V, VCM= V+/2; RL= 500k to V+/2; TA= 25C, unless otherwise noted. Bold values indicate -40C TA +85C. VOS IB IOS VCM CMRR PSRR AVOL VOUT VOUT GBW BW Input Offset Voltage Input Offset Voltage Temp Coefficient Input Bias Current Input Offset Current Input Voltage Range Common-Mode Rejection Ratio Power Supply Rejection Ratio Large-Signal Voltage Gain CMRR > 60dB 0 < VCM < 3.5V Supply voltage change of 1V RL = 100k, VOUT 4.0V peak to peak RL = 500k, VOUT 4.0V peak to peak Maximum Output Voltage Swing Minimum Output Voltage Swing Gain-Bandwidth Product -3dB Bandwidth RL = 500k RL = 500k RL = 200k, CL = 2pF, VOUT = 0 AV = 1, CL = 2pF, RL = 1M 60 45 60 68 Note 5 -10 2 15 20 10 4.2 80 85 76 83 10 mV V/C pA pA V dB dB dB dB V V kHz kHz V+-2mV V+-0.7mV V-+0.7mV V-+ 2mV 400 650 MIC861 2 June 2001 MIC861 Symbol SR ISC IS Note 1. Note 2. Note 3. Note 4. Note 5. Micrel Parameter Slew Rate Short-Circuit Output Current Condition AV = 1, CL = 2pF, RL = 1M Source Sink Supply Current No Load 10 10 Min Typ 0.12 24 24 4.6 9 Max Units V/s mA mA A Exceeding the absolute maximum rating may damage the device. The device is not guaranteed to function outside its operating rating. Devices are ESD sensitive. Handling precautions recommended. Human body model, 1.5k in series with 100pF. Pin 4 is ESD sensetive Exceeding the maximum differential input voltage will damage the input stage and degrade performance (in particular, input bias current is likely to increase. The offset voltage distribution is centered around 0V. The typical offset number shown, is equal to the standard deviation of the voltage offset distribution. June 2001 3 MIC861 MIC861 Micrel Test Circuits 200k V+ 0.1F 10F 20k MIC861 20k V+ 0.1F 10F 20k MIC861 RF FET PROBE 501/2 V 0.1F 10F FET PROBE RF FET PROBE 501/2 V 0.1F 10F RL 5k FET PROBE Test Circuit 1. AV = 11 V+ 0.1F 10F Test Circuit 2:AV = 2 20k V+ 0.1F 10F RF 20k MIC861 MIC861 RF FET PROBE 501/2 V 0.1F 10F FET PROBE FET PROBE 501/2 501/2 0.1F 10F FET PROBE V Test Circuit 3. AV = 1 Test Circuit 4. AV = -1 V+ 10F 100F 50 BNC 0.1F Input 10F 48k 10k 50 170k BNC MIC861 Output 10k 0.1F All resistors: 1% metal film 100F 10F V-- Test Circuit 5. Positive Power Supply Rejection Ratio Measurement MIC861 4 June 2001 MIC861 Micrel DC Performance Characteristics Output Voltage vs. Output Current 5 Sourcing Output Voltage vs. Output Current 30 OUTPUT CURRENT (mA) 5 Sinking OUTPUT VOLTAGE (V) 4 3 2 1 0 0 -40C 5 10 15 20 25 30 OUTPUT CURRENT (mA) 85C 25C 25 20 15 10 5 Short Circuit Current vs. Supply Voltage Sourcing -40C OUTPUT VOLTAGE (V) 4 3 2 1 0 0 25C 85C - 5 -10 -15 - 20 -25 -30 - 35 - 40 OUTPUT CURRENT (mA) -40C 25C 85C 0 0.8 1 1.2 1.4 1.6 1.8 2 2.2 2.4 SUPPLY VOLTAGE (V) Short Circuit Current vs. Supply Voltage 30 Sinking OUTPUT CURRENT (mA) OFFSET VOLTAGE (V) 25 20 15 10 5 0 0.9 1.1 1.3 1.5 1.7 1.9 2.1 2.3 2.5 SUPPLY VOLTAGE (V) 85C -40C 25C 1 0.9 0.8 0.7 0.6 0.5 0 1.1 Offset Voltage vs. Common-Mode Voltage V+ = 2.7V 85C OFFSET VOLTAGE (V) 1.1 1 0.9 0.8 0.7 0.6 Offset Voltage vs. Common-Mode Voltage V+ = 5V 85C 25C 25C -40C -40C 0.5 1 1.5 2 2.5 COMMON-MODE VOLTAGE (V) 0.5 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 COMMON-MODE VOLTAGE (V) Offset Voltage vs. Supply Voltage 9 OPEN LOOP GAIN (dB) 8 OFFSET VOLTAGE (V) 7 6 5 4 3 2 1 0 0.9 1.1 1.3 1.5 1.7 1.9 2.1 2.3 2.5 SUPPLY VOLTAGE (V) 25C -40C 85C 100 80 60 40 20 0 0.1 Open Loop Gain vs. Resistive Load 7 V+ = 5V V+ = 2.7V SUPPLY CURRENT (A) 6 5 4 3 2 1 Supply Current vs. Temperature 5V 2.7V 1 10 100 1000 10000 RESISTIVE LOAD (k) 0 -40 -20 0 20 40 60 80 100 TEMPERATURE (C) Offset Voltage vs. Temperature SHORT CIRCUIT CURRENT (mA) 0 OFFSET VOLTAGE (mV) -1 -2 -3 -4 -5 2.7V 5V Short Circuit Current vs. Temperature Sourcing 25 20 15 10 5 2.7V 0 -40 -20 0 20 40 60 80 100 TEMPERATURE (C) 5V SHORT CIRCUIT CURRENT (mA) 30 0 -5 Short Circuit Current vs. Temperature Sinking 2.7V -10 -15 -20 5V -25 -30 -40 -20 0 20 40 60 80 100 TEMPERATURE (C) -6 -40 -20 0 20 40 60 80 100 TEMPERATURE (C) June 2001 5 MIC861 MIC861 Micrel AC Perfomance Characteristics Gain Bandwidth vs. Capacitive Load 425 GAIN BANDWIDTH (kHz) 375 325 275 225 175 125 75 25 1 10 100 1000 CAPACITIVE LOAD (pF) 2.7V 5V 90 80 70 CMRR (dB) 50 40 30 20 10 0 1 V+= 5V 10 100 1k 10k 100k 1M FREQUENCY (Hz) PSRR (dB) 60 CMRR vs. Frequency 90 80 70 60 50 40 30 20 10 PSRR vs. Frequency 0 V+ = 5V -10 1 10 100 1k 10k 100k 1M FREQUENCY (Hz) Gain Bandwidth and Phase Margin Gain Bandwidth and Phase Margin 40 30 20 GAIN (dB) 180 135 90 PHASE () 40 30 20 180 135 90 PHASE () 10 0 -10 -20 -30 -40 1k AV = 11 V+ = 1.35V V- = -1.35V CL = 2pF RF = 200k 10k 100k FREQUENCY (Hz) 1M 45 0 -45 -90 -135 -180 GAIN (dB) 10 0 -10 -20 -30 -40 1k AV = 11 V+ = 2.5V V- = -2.5V CL = 2pF RF = 200k 10k 100k FREQUENCY (Hz) 1M 45 0 -45 -90 -135 -180 Gain Frequency Response Gain Bandwidth and Phase Margin 40 30 20 180 135 90 40 30 20 180 135 90 PHASE () PHASE () GAIN (dB) 10 0 -10 -20 -30 -40 1k AV = 2 V+ = 1.35V V- = -1.35V CL = 2pF RF = 20k 10k 100k FREQUENCY (Hz) 1M 45 0 -45 -90 -135 -180 GAIN (dB) 10 0 -10 -20 -30 -40 1k AV = 2 V+ = 2.5V V- = -2.5V CL = 2pF RF = 20k 10k 100k FREQUENCY (Hz) 1M 45 0 -45 -90 -135 -180 MIC861 6 June 2001 MIC861 Micrel Unity Gain Frequency Response Unity Gain Frequency Response 40 30 20 180 135 90 40 30 20 180 135 90 PHASE () PHASE () GAIN (dB) 10 0 -10 -20 -30 -40 1k AV = 1 V+ = 1.35V V- = -1.35V RL = 1M 10k 100k FREQUENCY (Hz) 1M 45 0 -45 -90 -135 -180 GAIN (dB) 10 0 -10 -20 -30 -40 1k AV = 1 V+ = 2.5V V- = -2.5V CL = 2pF RL = 1M 10k 100k FREQUENCY (Hz) 1M 45 0 -45 -90 -135 -180 Close-loop Unity Gain Frequency Response 18 15 12 AV = 1 V+ = 2.5V V- = -2.5V 0.1F 1F 0.01F 1000pF V+ GAIN (dB) 9 6 3 0 -3 -6 100 1k 10k 100k FREQUENCY (Hz) FET Probe 100pF RF V-- CL 3pF 1M 10M June 2001 7 MIC861 MIC861 Micrel Small Signal Pulse Response Test Circuit 3: AV = 1 Small Signal Pulse Response Test Circuit 3: AV = 1 INPUT 50mV/div OUTPUT 50mV/div TIME 10s/div OUTPUT 50mV/div AV = 1 V+ = 1.35V V- = -1.35V CL = 2pF RL = 1M INPUT 50mV/div AV = 1 V+ = 2.5V V- = -2.5V CL = 2pF RL = 1M TIME 10s/div Small Signal Pulse Response Test Circuit 3: AV = 1 Small Signal Pulse Response Test Circuit 3: AV = 1 INPUT 50mV/div OUTPUT 50mV/div TIME 10s/div OUTPUT 50mV/div AV = 1 V+ = 1.35V V- = -1.35V CL = 50pF RL = 1M INPUT 50mV/div AV = 1 V+ = 2.5V V- = -2.5V CL = 50pF RL = 1M TIME 250ms/div Small Signal Pulse Response Test Circuit 4: AV = -1 INPUT 50mV/div Small Signal Pulse Response Test Circuit 4: AV = -1 INPUT 50mV/div AV = -1 V+ = 1.35V V- = -1.35V CL = 2pF RL = 5k RF = 20k AV = -1 V+ = 2.5V V- = -2.5V CL = 2pF RL = 5k RF = 20k OUTPUT 50mV/div TIME 10s/div OUTPUT 50mV/div TIME 10s/div MIC861 8 June 2001 MIC861 Micrel Small Signal Pulse Response Test Circuit 4: AV = -1 Small Signal Pulse Response Test Circuit 4: AV = -1 INPUT 50mV/div AV = -1 V+ = 1.35V V- = -1.35V CL = 2pF RL = 1M RF = 20k INPUT 50mV/div AV = -1 V+ = 2.5V V- = -2.5V CL = 2pF RL = 1M RF = 20k OUTPUT 50mV/div TIME 10ms/div OUTPUT 50mV/div TIME 10s/div Rail to Rail Output Operation Rail to Rail Output Operation INPUT 2V/div OUTPUT 2V/div TIME 250s/div OUTPUT 2V/div AV = 2 V+ = 1.35V V- = -1.35V CL = 2pF RL = 1M RF = 20k INPUT 2V/div VPP = 2.7V AV = 2 V+ = 2.5V V- = -2.5V CL = 2pF RL = 1M RF = 20k VPP = 5V TIME 250s/div Rail to Rail Output Operation Rail to Rail Output Operation INPUT 1V/div OUTPUT 1V/div TIME 250s/div OUTPUT 2V/div AV = 2 V+ = 1.35V V- = -1.35V CL = 2pF RL = 5k RF = 20k INPUT 2V/div VPP = 2.7V AV = 2 V+ = 2.5V V- = -2.5V CL = 2pF RL = 5k RF = 20k VPP = 5V TIME 250s/div June 2001 9 MIC861 MIC861 Micrel Large Signal Pulse Response Test Circuit 3: AV = 1 AV = 1 V+ = 1.35V V- = -1.35V CL = 100pF RL = 5k Large Signal Pulse Response Test Circuit 3: AV = 1 AV = 1 V+ = 2.5V V- = -2.5V CL = 100pF RL = 5k OUTPUT 500mV/div OUTPUT 500mV/div Positive Slew Rate = 0.14V/s Negative Slew Rate = 0.22V/s Positive Slew Rate = 0.13V/s Negative Slew Rate = 0.18V/s TIME 10s/div TIME 10s/div MIC861 10 June 2001 MIC861 Micrel Applications Information Power Supply Bypassing Regular supply bypassing techniques are recommended. A 10F capacitor in parallel with a 0.1F capacitor on both the positive and negative supplies are ideal. For best performance all bypassing capacitors should be located as close to the op amp as possible and all capacitors should be low ESL (equivalent series inductance), ESR (equivalent series resistance). Surface-mount ceramic capacitors are ideal. June 2001 11 MIC861 MIC861 Micrel Package Information 0.65 (0.0256) BSC 1.35 (0.053) 2.40 (0.094) 1.15 (0.045) 1.80 (0.071) 2.20 (0.087) 1.80 (0.071) DIMENSIONS: MM (INCH) 1.00 (0.039) 1.10 (0.043) 0.80 (0.032) 0.80 (0.032) 0.18 (0.007) 0.10 (0.004) 0.30 (0.012) 0.15 (0.006) 0.10 (0.004) 0.00 (0.000) 0.30 (0.012) 0.10 (0.004) SC70-5 MICREL INC. TEL 1849 FORTUNE DRIVE SAN JOSE, CA 95131 FAX USA + 1 (408) 944-0800 + 1 (408) 944-0970 WEB http://www.micrel.com This information is believed to be accurate and reliable, however no responsibility is assumed by Micrel for its use nor for any infringement of patents or other rights of third parties resulting from its use. No license is granted by implication or otherwise under any patent or patent right of Micrel Inc. (c) 2001 Micrel Incorporated MIC861 12 June 2001 |
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