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MIC6211 Micrel MIC6211 IttyBittyTM Operational Amplifier Preliminary Information General Description The MIC6211 IttyBittyTM op amp is a general-purpose, highperformance, single- or split-supply, operational amplifier in a space-saving, surface-mount package. The MIC6211 operates from 4V to 32V, single or differential (split) supply. The input common-mode range includes ground. The device features a 2.5MHz unity gain bandwidth, 6V/s slew rate, and is internally unity-gain compensated. Inputs are protected against reverse polarity (input voltage less than V-) and ESD (electrostatic discharge). Output is current limited for both sourcing and sinking. Output short circuits of unlimited duration are allowed, provided the power dissipation specification is not exceeded. The MIC6211 is available in the tiny, 5-lead SOT-23-5 surface-mount package. Features * * * * * * 4V to 32V operation Small footprint package Unity gain stable 2.5 MHz unity gain bandwidth 6V/s typical slew rate Short circuit protected Applications * Analog blocks * Active filtering Ordering Information Part Number MIC6211BM5 Temperature Range -40C to +85C Package SOT-23-5 Pin Configuration IN+ 3 Functional Configuration V- OUT 2 1 IN+ 3 V- OUT 2 1 A11 4 5 Part Identification 4 5 IN- V+ IN- V+ SOT-23-5 (M5) Pin Description Pin Number 1 2 3 4 5 Pin Name OUT V- IN+ IN- V+ Pin Function Amplifier Output Negative Supply: Negative supply for split supply application or ground for single supply application. Noninverting Input Inverting Input Positive Supply 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 1999 1 MIC6211 MIC6211 Micrel Absolute Maximum Ratings Supply Voltage (VV+ - VV-) ............................. 36V or 18V Differential Input Voltage (VIN+ - VIN-) ....................... 36V Input Voltage (VIN+, VIN-) ..................... (VV- - 0.3V) to VV+ Output Short Circuit Current Duration ............................... Operating Ratings Supply Voltage .................................................... 4V to 32V Ambient Temperature Range ..................... -40C to +85C SOT-23-5 Thermal Resistance (JA) ..................... 220C/W (mounted to printed circuit board) Electrical Characteristics (Differential Supply) V+ = +15V, V- = -15V, VCM = 0V; RL = 2k; TA = 25C, bold values indicate -40C TA +85C, TA = TJ; unless noted Symbol VOS TCVOS IB IOS VCM CMRR PSRR AVOL VOUT BW SR ISC IS Parameter Input Offset Voltage Average Input Offset Drift Input Bias Current Input Offset Current Input Voltage Range Common Mode Rejection Ratio Power Supply Rejection Ratio Large Signal Voltage Gain Maximum Output Voltage Swing Bandwidth Slew Rate Output Short Circuit Current Supply Current Sourcing or sinking 30 VCM = +13.5V, -15.0V VS = 2.5V to 15V VO = 10V +13.5 -15.0 65 65 25 12.5 Note 1 Condition Min Typ 2 7 50 8 +13.8 -15.3 100 110 180 14 2.5 6 50 1.3 2.0 250 30 Max 7 Units mV V/C nA nA V V dB dB V/mV V MHz V/s mA mA Electrical Characteristics (Single Supply) V+ = +5V, V- = 0V, VCM = 0.1V; TA = 25C, bold values indicate -40C TA +85C, TA = TJ; unless noted Symbol VOS TCVOS IB IOS VCM CMRR PSRR AVOL VOUT ISC IS Note 1: Parameter Input Offset Voltage Average Input Offset Drift Input Bias Current Input Offset Current Input Voltage Range Common Mode Rejection Ratio Power Supply Rejection Ratio Large Signal Voltage Gain Maximum Output Voltage Swing Output Short Circuit Current Supply Current Condition Min Typ 2 Max 7 Units mV V/C Note 1 7 65 8 +3.5 0 +3.7 -0.3 70 105 170 +4.0 +1.0 40 1.2 1.8 +1.2 250 30 nA nA V V dB dB V/mV V V mA mA VCM = 0V to 3.5V VS = 2.5V to 15V VO = 1.5V to 3.5V, RL = 2k RL = 10k to GND RL = 10k to +5V Sourcing or sinking 45 65 15 +3.8 20 General Note: Devices are ESD protected; however, handling precautions are recommended. Not production tested. MIC6211 2 June 1999 MIC6211 Micrel Typical Characteristics Supply Current vs. Temperature 1.4 INPUT BIAS CURRENT (nA) SUPPLY CURRENT (mA) VS = 15V 1.3 80 70 60 50 40 30 -40 -20 0 20 40 60 80 100 TEMPERATURE (C) V = 15V S INPUT OFFSET CURRENT (nA) 90 Input Bias Current vs. Temperature 20 Input Offset Current vs. Temperature 15 VS = 15V 10 VS = 5V 1.2 V = 5V S 1.1 5 VS = 5V 1.0 -40 -20 0 20 40 60 80 100 TEMPERATURE (C) 0 -40 -20 0 20 40 60 80 100 TEMPERATURE (C) 1.5 SUPPLY CURRENT (mA) Supply Current vs. Supply Voltage 120 100 VOLTAGE GAIN (dB) Voltage Gain vs. Frequency 30 Gain and Phase vs. Frequency 45 90 135 PHASE () VS = 15V VOLTAGE GAIN (dB) 20 10 PHASE 1.0 80 60 40 20 0 10,000 10 100 1,000 0.1 72 0 -10 VS = 15V -20 0.1 1.0 FREQUENCY (MHz) 270 10 GAIN 180 225 0.5 0 5 10 15 20 25 SUPPLY VOLTAGE (V) 30 0.01 FREQUENCY (kHz) Large-Signal Transient Response 1 0 -20 Small-Signal Transient Response OUTPUT VOLTAGE OUTPUT VOLTAGE +10V GND -10V AV = +1 RL = 2k CL = 10pF VS = 15V +50mV GND -50mV AV = +1 RL = 2k CL = 100pF VS = 15V INPUT VOLTAGE +10V GND -10V 2s/DIV INPUT VOLTAGE +50mV GND -50mV 500ns/DIV June 1999 3 MIC6211 MIC6211 Micrel PEAK-TO-PEAK OUTPUT VOLTAGE (V) 30 25 20 15 10 5 0 10 Large-Signal Frequency Response VS = 15V RL = 2k TA = 25C 110 100 CMRR (dB) Common Mode Rejection Ratio vs. Frequency VS = 15V 130 120 110 Power Supply Rejection Ratio vs. Frequency V = 15V S PSRR (dB) 90 80 70 60 100 90 80 70 60 -PSRR +PSRR 100 1000 3000 FREQUENCY (kHz) 50 0.01 0.1 1 10 100 FREQUENCY (kHz) 1000 50 0.001 0.01 0.1 1 10 FREQUENCY (kHz) 100 SHORT CIRCUIT CURRENT (mA) 65 60 55 50 45 Short Circuit Current vs. Temperature VS = 15V 40 -40 -20 0 20 40 60 80 100 TEMPERATURE (C) 0.1Hz to 10Hz Noise VS = 15V Wideband Noise VS = 15V NOISE VOLTAGE (4V/DIV) 1s/DIV NOISE VOLTAGE (5V/DIV) 5ms/DIV MIC6211 4 June 1999 MIC6211 Micrel Functional Diagram V+ 5 20 -IN 4 1 VOUT 20 CC 3 +IN 2 MIC6211 V- (GND) June 1999 5 MIC6211 MIC6211 Micrel High-Pass Filter Figure 4 is an active filter with 20dB (10x) gain and a lowfrequency cutoff of 10Hz. The high gain-bandwidth of the MIC6211 allows operation beyond 100kHz. This filter configuration is designed for split supplies. 0.1F Applications Information Common-Mode Range and Output Voltage The input common-mode range of the MIC6211 is from the negative supply voltage to 1.2V below the positive supply voltage. The output voltage swings within 1V of the positive and negative supply voltage. Voltage Buffer Figure 1 shows a standard voltage follower/buffer. The output voltage equals the input voltage. This circuit is used to buffer a high impedance signal source. This circuit works equally well with single or split supplies. VIN 3 1 332k 1F VIN 7.5k 1F 4 1 3 VOUT VOUT Figure 4a. High-Pass Filter VOUT (dB) 4 30 20 10 0 VOUT = VIN Figure 1. Voltage Buffer Inverting Amplifier Figure 2 shows an inverting amplifier with its gain set by the ratio of two resistors. This circuit works best with split supplies, but will perform with single supply systems if the noninverting input (+ input) is biased up above ground. R1 R2 4 1 3 10 1 10 1k 100k FREQUENCY (Hz) Figure 4b. High-Pass Filter Response Summing Amplifier Figure 5 is a single supply summing amplifier. In this configuration, the output voltage is the sum of V1 and V2, minus the sum of V3 and V4. By adding more resistors to either the inverting or non-inverting input, more voltages may be summed. This single supply version has one important restriction: the sum of V1 and V2 must exceed the sum of V3 and V4, since the output voltage cannot pull below zero with only a single supply. V1 V2 R R R R V3 R V4 All resistors are equal. VOUT = V1 + V2 - V3 - V4 3 1 4 VIN VOUT VOUT VIN R1 R2 Figure 2. Inverting Amplifer Voltage Controlled Current Sink Figure 3 is a voltage controlled current sink. A buffer transistor forces current through a programming resistor until the feedback loop is satisfied. Current flow is VIN/R. This circuit works with single or split supplies. VIN 3 1 100,000 10,000 100 1,000 -10 -20 1 VOUT R V1 + V2 > V3 + V4 for single supply operation 4 Figure 5. Summing Amplifier I VIN R R Figure 3. Voltage Controlled Current Sink MIC6211 6 June 1999 MIC6211 Micrel Package Information 1.90 (0.075) REF 0.95 (0.037) REF 1.75 (0.069) 1.50 (0.059) 3.00 (0.118) 2.60 (0.102) DIMENSIONS: MM (INCH) 3.02 (0.119) 2.80 (0.110) 1.30 (0.051) 0.90 (0.035) 10 0 0.15 (0.006) 0.00 (0.000) 0.20 (0.008) 0.09 (0.004) 0.50 (0.020) 0.35 (0.014) 0.60 (0.024) 0.10 (0.004) SOT-23-5 (M5) June 1999 7 MIC6211 MIC6211 Micrel MICREL INC. 1849 FORTUNE DRIVE SAN JOSE, CA 95131 TEL USA + 1 (408) 944-0800 FAX + 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) 1999 Micrel Incorporated MIC6211 8 June 1999 |
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