MIC7122

MIC7122_05 MICREL | Alldatasheet

Document overview

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• PDF pages: 8

Technical content

Features

• Small footprint MSOP-8 package
• 350µA supply current per op amp at 2.2V supply
• Guaranteed 2.2V, 5V, and 15V performance
• 750kHz gain-bandwidth product at 2.2V supply
• 0.01% total harmonic distortion at 1kHz (15V, 2kΩ )
• Drives 200pF at 5V and greater supply voltages

Applications

• Battery-powered instrumentation
• PCMCIA, USB peripherals
• Portable computers and PDAs Micrel, Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel + 1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com MM8 is a trademark of Micrel, Inc. Pin Description Pin Number Pin Name Pin Function 1 / 7 OUTA / OUTB Amplifier Outputs 2 / 6 INA– / INB– Inverting Inputs 3 / 5 INA+ / INB+ Noninverting Inputs

4 V– Negative Supply: Negative supply for split supply application or ground for

single supply applications.

8 V+ Positive Supply

INB– INB+ OUT A IN A– IN A+ MSOP-8 (MM) A B

Ordering Information

Standard Pb-free Temperature Range Package MIC7122BMM MIC7122YMM –40°C to +85°C MSOP-8

Absolute Maximum Ratings (Note 1) I/O Pin Voltage (VIN, VOUT ), Note 3 Operating Ratings (Note 2) Package Thermal Resistance, Note 5 VV+ = +2.2V, VV– = 0V, VCM = VOUT = VV+/2; RL = 1MΩ ; TJ = 25°C, bold values indicate –40°C ≤ TJ ≤ +85°C ; Note 7; unless noted Symbol Parameter Condition Min Typ Max Units VOS Input Offset Voltage 0.5 9 mV TCV OS Input Offset Voltage Average Drift 3.0 µV/°C IB Input Bias Current 1.0 10 pA 64 500 pA IOS Input Offset Current 0.5 5 pA 32 250 pA R IN Input Resistance >1 T Ω CMRR Common-Mode Rejection Ratio -0.3V ≤ VCM ≤ 2.5V, Note 9 45 65 dB ±PSRR Power Supply Rejection Ratio V V+ = VV– = 1.1V to 2.5V, VOUT = VCM = 0 60 85 dB C IN Common-Mode Input Capacitance 3 pF VO Output Swing output high, R L = 100k, 0.15 1 mV specified as VV+ – VOUT 1 mV output low, RL = 100k 0.15 1 mV 1 mV output high, RL = 2k 8 33 mV specified as VV+ – VOUT 50 mV output low, RL = 2k 8 33 mV 50 mV output high, RL = 600Ω 26 110 mV specified as VV+ – VOUT 165 mV output low, RL = 600Ω 26 110 mV 165 mV ISC Output Short Circuit Current sinking or sourcing, Note 8 20 50 mA IS Supply Current both amplifiers 0.7 1.6 mA VV+ = 2.2V, VV– = 0V, VCM = VOUT = VV+/2; RL = 1MΩ ; TJ = 25°C, bold values indicate –40°C ≤ TJ ≤ +85°C ; Note 7; unless noted Symbol Parameter Condition Min Typ Max Units SR Slew Rate 0.7 V/ µs GBW Gain-Bandwidth Product 750 kHz φm Phase Margin C L = 0pF 80 ° C L = 200pF 40 ° G m Gain Margin 10 dB Interamplifier Isolation Note 12 90 dB

VV+ = +5.0V, VV– = 0V, VCM = 1.5V, VOUT = VV+ /2; RL = 1MΩ ; TJ = 25°C, bold values indicate –40°C ≤ TJ ≤ +85°C; Note 7; unless noted Symbol Parameter Condition Min Typ Max Units VOS Input Offset Voltage 0.5 9 mV TCV OS Input Offset Voltage Average Drift 3.0 µV/°C IB Input Bias Current 1.0 10 pA 64 500 pA IOS Input Offset Current 0.5 5 pA 32 250 pA R IN Input Resistance >1 T Ω CMRR Common-Mode Rejection Ratio -0.3V ≤ VCM ≤ 5.3V, Note 9 55 75 dB ±PSRR Power Supply Rejection Ratio V V+ = VV– = 2.5V to 7.5V, VOUT = VCM = 0 55 100 dB C IN Common-Mode Input Capacitance 3 pF VOUT Output Swing output high, R L = 100k 0.3 1.0 mV specified as VV+ – VOUT 1.5 mV output low, RL = 100k 0.3 1.0 mV 1.5 mV output high, RL = 2k 13 50 mV specified as VV+ – VOUT 75 mV output low, RL = 2k 13 50 mV 75 mV output high, RL = 600Ω 40 165 mV specified as VV+ – VOUT 250 mV output low, RL = 600Ω 40 165 mV 250 mV ISC Output Short Circuit Current sinking or sourcing, Note 8 40 140 mA IS Supply Current both amplifiers 0.8 1.8 mA VV+ = 5V, VV– = 0V, VCM = 1.5V, VOUT = VV+/2; RL = 1MΩ ; TJ = 25°C, bold values indicate –40°C ≤ TJ ≤ +85°C ; Note 7; unless noted Symbol Parameter Condition Min Typ Max Units THD Total Harmonic Distortion f = 1kHz, A V = –2, 0.05 % R L = 2kΩ , VOUT = 4.0 VPP SR Slew Rate 0.6 V/ µs GBW Gain-Bandwidth Product 465 kHz φm Phase Margin C L = 0pF 85 ° C L = 200pF 40 ° G m Gain Margin 10 dB Interamplifier Isolation Note 12 90 dB

VV+ = +15V, VV– = 0V, VCM = 1.5V, VOUT = VV+/2; RL = 1MΩ ; TJ = 25°C, bold values indicate –40°C ≤ TJ ≤ +85°C; Note 7; unless noted Symbol Parameter Condition Min Typ Max Units VOS Input Offset Voltage 0.5 9 mV TCV OS Input Offset Voltage Average Drift 3.0 µV/°C IB Input Bias Current 1.0 10 pA 64 500 pA IOS Input Offset Current 0.5 5 pA 32 250 pA R IN Input Resistance >1 T Ω CMRR Common-Mode Rejection Ratio -0.3V ≤ VCM ≤ 15.3V, Note 9 60 85 dB ±PSRR Power Supply Rejection Ratio V V+ = VV– = 2.5V to 7.5V, VOUT = VCM = 0 55 100 dB AV Large Signal Voltage Gain sourcing or sinking, 340 V/mV R L = 2k, Note 10 sourcing or sinking, 300 V/mV R L = 600Ω , Note 10 C IN Common-Mode Input Capacitance 3 pF VOUT Output Swing output high, R L = 100k 0.8 2 mV specified as VV+ – VOUT 3 mV output low, RL = 100k 0.8 2 mV 3 mV output high, RL = 2k 40 80 mV specified as VV+ – VOUT 120 mV output low, RL = 2k 40 80 mV 120 mV output high, RL = 600Ω 130 270 mV specified as VV+ – VOUT 400 mV output low, RL = 600Ω 130 270 mV 400 mV ISC Output Short Circuit Current sinking or sourcing, Notes 8 50 250 mA IS Supply Current both amplifiers 0.9 2.0 mA VV+ = 15V, VV– = 0V, VCM = 1.5V, VOUT = VV+/2; RL = 1MΩ ; TJ = 25°C, bold values indicate –40°C ≤ TJ ≤ +85°C ; Note 7; unless noted Symbol Parameter Condition Min Typ Max Units THD Total Harmonic Distortion f = 1kHz, A V = –2, 0.01 % R L = 2k, VOUT = 8.5 VPP SR Slew Rate V+ = 15V, Note 11 0.5 V/ µs GBW Gain-Bandwidth Product 420 kHz φm Phase Margin C L = 0pF 85 ° C L = 500pF 40 ° G m Gain Margin 10 dB en Input-Referred Voltage Noise f = 1kHz, VCM = 1V 37 nV/ Hz in Input-Referred Current Noise f = 1kHz 1.5 fA/ Hz Interamplifier Isolation Note 12 90 dB

Note 1. Exceeding the absolute maximum rating may damage the device. Note 2. The device is not guaranteed to function outside its operating rating. Note 3. I/O Pin Voltage is any external voltage to which an input or output is referenced. Note 4. The maximum allowable power dissipation is a function of the maximum junction temperature, TJ(max); the junction-to-ambient thermal resistance, θJA; and the ambient temperature, TA. The maximum allowable power dissipation at any ambient temperature is calculated using: PD = (TJ(max) – TA) ÷ θJA. Exceeding the maximum allowable power dissipation will result in excessive die temperature. Note 5. Thermal resistance, θJA, applies to a part soldered on a printed-circuit board. Note 6. Devices are ESD protected; however, handling precautions are recommended. Human body model, 1.5kΩ in series with 100pF. Note 7. All limits guaranteed by testing or statistical analysis. Note 8. Continuous short circuit may exceed absolute maximum TJ under some conditions. Note 9. CMRR is determined as follows: The maximum ∆VOS over the VCM range is divided by the magnitude of the VCM range. The measurement points are: VCM = VV– – 0.3V, (VV+ – VV–)/2, and VV+ + 0.3V. Note 11.Device connected as a voltage follower with a 10V step input. The value is the positive or negative slew rate, whichever is slower. Note 12.Referenced to input.

Package Information

0.008 (0.20) 0.004 (0.10) 0.039 (0.99) 0.035 (0.89) 0.021 (0.53) 0.012 (0.03) R 0.0256 (0.65) TYP 0.012 (0.30) R 5° MAX 0° MIN 0.122 (3.10) 0.112 (2.84) 0.120 (3.05) 0.116 (2.95) 0.012 (0.03) 0.007 (0.18) 0.005 (0.13) 0.043 (1.09) 0.038 (0.97) 0.036 (0.90) 0.032 (0.81) DIMENSIONS: INCH (MM) 0.199 (5.05) 0.187 (4.74) MM8 ™ 8-Lead MSOP (MM) MICREL INC. 2180 FORTUNE DRIVE SAN JOSE, CA 95131 USA TEL + 1 (408) 944-0800 FAX + 1 (408) 474-1000 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. © 2005 Micrel Incorporated