SGM842 67nA, Dual Rail-to-Rail I/O GENERAL DESCRIPTION The SGM842 is guaranteed to operate with a single supply voltage as low as 1.4V, while drawing less than 67nA (TYP) of quiescent current per amplifier. This device is also designed to support rail-to-rail input and output operation. This combination of features supports battery-powered and portable applications. The SGM842 has a gain-bandwidth product of 14.5kHz (TYP) and is unity gain stable. These specifications make this operational amplifier appropriate for low frequency applications, such as battery current monitoring and sensor conditioning. The SGM842 is offered in dual configuration. It is specified over the extended -4 to +85 temperature range. The SGM842 is available in the Green SOIC-8 and MSOP-8 packages. TYPICAL APPLICATION FEATURES Low Quiescent Current: 67nA/Amplifier (TYP) Rail-to-Rail Input and Output Gain-Bandwidth Product: 14.5kHz at V S = 5V (TYP) Wide Supply Voltage Range: 1.4V to 5.5V Unity Gain Stable -4 to +85 Operating Temperature Range Available in Green SOIC-8 and MSOP-8 Packages APPLICATIONS Toll Booth Tags Wearable Products Temperature Measurement Battery Powered System PIN CONFIGURATION I S SGM842 (TOP VIEW) 1.4V to 5.5V 1Ω + 1 2 SGM842 +V S V OUT V OUTA V INA- 1 2 8 7 +V S V OUTB 1kΩ 1MΩ V INA+ 3 6 V INB- I S = +Vs - V OUT (1V/V) (1Ω) -V S 4 5 V INB+ High Side Battery Current Sensor SOIC-8/MSOP-8 OCTOBER 217 REV. A. 3
SGM842 67nA, Dual Rail-to-Rail I/O PACKAGE/ORDERING INFORMATION MODEL SGM842 PACKAGE DESCRIPTION SPECIFIED TEMPERATURE RANGE ORDERING NUMBER SOIC-8-4 to +85 SGM842YS8G/TR MSOP-8-4 to +85 SGM842YMS8G/TR NOTE: XXXXX = Date Code and Vendor Code. PACKAGE MARKING SGM842YS8 XXXXX SGM842 YMS8 XXXXX PACKING OPTION Tape and Reel, 25 Tape and Reel, 3 Green (RoHS & HSF): defines "Green" to mean Pb-Free (RoHS compatible) and free of halogen substances. If you have additional comments or questions, please contact your SGMICRO representative directly. ABSOLUTE MAXIMUM RATINGS Supply Voltage... 6V Analog Inputs (V IN+, V IN )... (-V S) -.1V to (+V S) +.1V Differential Input Voltage... (-V S) (+V S) Storage Temperature Range... -65 to +15 Junction Temperature... +15 Lead Temperature (Soldering 1sec)... +26 ESD Susceptibility HBM... 4V MM... 4V RECOMMENDED OPERATING CONDITIONS Operating Temperature Range... -4 to +85 OVERSTRESS CAUTION Stresses beyond those listed may cause permanent damage to the device. Functional operation of the device at these or any other conditions beyond those indicated in the operational section of the specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect reliability. ESD SENSITIVITY CAUTION This integrated circuit can be damaged by ESD if you don t pay attention to ESD protection. SGMICRO recommends that all integrated circuits be handled with appropriate precautions. Failure to observe proper handling and installation procedures can cause damage. ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more susceptible to damage because very small parametric changes could cause the device not to meet its published specifications. DISCLAIMER reserves the right to make any change in circuit design, specification or other related things if necessary without notice at any time. OCTOBER 217 2
SGM842 67nA, Dual Rail-to-Rail I/O ELECTRICAL CHARACTERISTICS (At T A = +25, +V S = 1.4V to 5V, -V S = GND, V CM = +V S/2, V OUT +V S/2 and R L = 1MΩ to +V S/2 (1), unless otherwise noted.) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS DC ELECTRICAL CHARACTERISTICS Input Offset Voltage V OS V CM = +V S/2.4 2.5 mv Input Offset Voltage Drift ΔV OS /ΔT V CM = +V S/2, -4 T A +85 2.5 µv/ Power Supply Rejection Ratio PSRR +V S = 1.4V to 5.5V 77 8 db Input Common Mode Voltage Range V CMR -V S -.1 +V S +.1 V +V S = 5.V, V CM = -.1V to 5.1V 67 84 Common Mode Rejection Ratio CMRR +V S = 5.V, V CM = 2.5V to 5.1V 7 83 db +V S = 5.V, V CM = -.1V to 2.5V 66 78 +V S = 1.4V, R L = 5kΩ, V OUT = +V S -.1V 75 8 Large-Signal Voltage Gain A VO +V S = 2.5V, R L = 5kΩ, V OUT = +V S -.1V 88 db +V S = 5.V, R L = 5kΩ, V OUT = +V S -.1V 84 93 Input Bias Current I B 1 pa Input Offset Current I OS 1 pa +V S = 1.4V, R L = 5kΩ 1.39 1.395 Maximum Output Voltage Swing Short Circuit Current V OH V OL I SC +V S = 2.5V, R L = 5kΩ 2.497 V +V S = 5.V, R L = 5kΩ 4.99 4.997 +V S = 1.4V, R L = 5kΩ 4.5 1 +V S = 2.5V, R L = 5kΩ 3.1 mv +V S = 5.V, R L = 5kΩ 3.5 1 +V S = 2.5V 5.5 ma +V S = 5.V 22 24 Supply Voltage V CC 1.4 5.5 V +V S = 1.4V 57 Quiescent Current/Amplifier I Q +V S = 2.5V 62 na +V S = 5.V 67 15 OCTOBER 217 3
SGM842 67nA, Dual Rail-to-Rail I/O ELECTRICAL CHARACTERISTICS (continued) (At T A = +25, +V S = 1.4V to 5V, -V S = GND, V CM = +V S/2, V OUT +V S/2 and R L = 1MΩ to +V S/2, C L = 6pF (1), unless otherwise noted.) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS AC ELECTRICAL CHARACTERISTICS Gain-Bandwidth Product Slew Rate GBP SR +V S = 1.4V 12 +V S = 2.5V 13.5 +V S = 5.V 14.5 +V S = 1.4V, V OUT = 1V Step 3.8 +V S = 2.5V, V OUT = 1V Step 4. +V S = 5.V, V OUT = 2V Step 4.2 Phase Margin PM +V S = 1.4V to 5.5V 6 Input Voltage Noise Input Voltage Noise Density NOTE1: Refer to Figure 1 and Figure 2. e n P-P e n +V S = 1.4V, f =.1Hz to 1Hz 3.7 +V S = 2.5V, f =.1Hz to 1Hz 3.2 +V S = 5.V, f =.1Hz to 1Hz 3.2 +V S = 1.4V, f = 1kHz 19 +V S = 2.5V, f = 1kHz 18 +V S = 5.V, f = 1kHz 18 khz V/ms µv P-P nv/ HZ TEST CIRCUITS The test circuits used for the DC and AC tests are shown in Figure 1 and Figure 2. +V S.1μF 1μF +V S.1μF 1μF V IN R N + SGM842 1 2 V OUT +V S /2 R N + SGM842 1 2 V OUT C L R L C L R L +V S /2 R G R F +V S /2 R G V IN +V S /2 R F Figure 1. AC and DC Test Circuit for Most Non-Inverting Gain Configurations Figure 2. AC and DC Test Circuit for Most Inverting Gain Configurations OCTOBER 217 4
SGM842 67nA, Dual Rail-to-Rail I/O TYPICAL PERFORMANCE CHARACTERISTICS T A = +25, +V S = 1.4V to 5V, -V S = GND, V CM = +V S/2, V OUT +V S/2 and R L = 1MΩ to +V S/2, C L = 6pF, unless otherwise noted. Large-Signal Inverting Pulse Response Large-Signal Non-Inverting Pulse Response V OUT (1V/div) V S = 5.V R L = 5kΩ C L = 6pF A V = -1 V OUT (1V/div) V S = 5.V R L = 5kΩ C L = 6pF A V = +1 Time (5ms/div) Time (5ms/div) Small-Signal Inverting Pulse Response Small-Signal Non-Inverting Pulse Response V OUT (1mV/div) C L = 6pF R L = 5kΩ A V = -1 V OUT (1mV/div) C L = 6pF R L = 5kΩ A V = +1 Time (5ms/div) Time (5ms/div) 1 Slew Rate vs. Temperature 4 No Phase Reversal Slew Rate (V/ms) 8 Low to High V S = 5.5V 6 4 2 High to Low V S = 1.4V -5-25 25 5 75 1 Temperature ( ) Input, Output Voltage (V) 3 2 1-1 -2-3 -4 V OUT V IN Time (5ms/div) OCTOBER 217 5
SGM842 67nA, Dual Rail-to-Rail I/O TYPICAL PERFORMANCE CHARACTERISTICS (continued) T A = +25, +V S = 1.4V to 5V, -V S = GND, V CM = +V S/2, V OUT +V S/2 and R L = 1MΩ to +V S/2, C L = 6pF, unless otherwise noted. Gain Bandwidth Product (khz) 24 22 2 18 16 14 12 1 8 6 4 Gain Bandwidth Product and Phase Margin vs. Input Common Mode Voltage +V S = 5V R L = 1MΩ PM GBP 1 2 3 4 5 Input Common Mode Voltage (V) 1 9 8 7 6 5 4 3 2 1 Phase Margin (degree) Open-Loop Gain (db) 2 15 1 5-5 -1-15 -2 Open-Loop Gain and Phase vs. Frequency -2 Open-Loop Gain Phase -4-6 -8-1 -12-14 -16-25 -18.1.1 1 1 1 Frequency (khz) Phase (degree) Percentage of Amplifiers (%) 4 35 3 25 2 15 1 5 Offset Voltage Production Distribution at +5V 31 Samples V CM = +V S /2-3 -2-1 1 2 3 Percentage of Amplifiers (%) 4 35 3 25 2 15 1 5 Offset Voltage Production Distribution at +1.4V 31 Samples V CM = +V S /2-3 -2-1 1 2 3 Offset Voltage (mv) Offset Voltage (mv) REVISION HISTORY NOTE: Page numbers for previous revisions may differ from page numbers in the current version. OCTOBER 217 REV.A.2 to REV.A.3 Updated Typical Performance Characteristics section... 6 JANUARY 213 REV.A.1 to REV.A.2 Added Tape and Reel Information section... 9~1 MAY 211 REV.A to REV.A.1 Updated Package Description... All Changes from Original (APRIL 21) to REV.A Changed from product preview to production data... All OCTOBER 217 6
PACKAGE INFORMATION PACKAGE OUTLINE DIMENSIONS SOIC-8 D e.6 2.2 E1 E 5.2 b 1.27 RECOMMENDED LAND PATTERN (Unit: mm) L A A1 θ c A2 Symbol Dimensions In Millimeters Dimensions In Inches MIN MAX MIN MAX A 1.35 1.75.53.69 A1.1.25.4.1 A2 1.35 1.55.53.61 b.33.51.13.2 c.17.25.6.1 D 4.7 5.1.185.2 E 3.8 4..15.157 E1 5.8 6.2.228.244 e 1.27 BSC.5 BSC L.4 1.27.16.5 θ 8 8 TX1.
PACKAGE INFORMATION PACKAGE OUTLINE DIMENSIONS MSOP-8 b E1 E 4.8 e 1.2.41.65 RECOMMENDED LAND PATTERN (Unit: mm) D L A A1 A2 c θ Symbol Dimensions In Millimeters Dimensions In Inches MIN MAX MIN MAX A.82 1.1.32.43 A1.2.15.1.6 A2.75.95.3.37 b.25.38.1.15 c.9.23.4.9 D 2.9 3.1.114.122 E 2.9 3.1.114.122 E1 4.75 5.5.187.199 e.65 BSC.26 BSC L.4.8.16.31 θ 6 6 TX14.
PACKAGE INFORMATION TAPE AND REEL INFORMATION REEL DIMENSIONS TAPE DIMENSIONS P2 P W Q1 Q2 Q1 Q2 Q1 Q2 B Q3 Q4 Q3 Q4 Q3 Q4 Reel Diameter P1 A K Reel Width (W1) DIRECTION OF FEED NOTE: The picture is only for reference. Please make the object as the standard. KEY PARAMETER LIST OF TAPE AND REEL Package Type Reel Diameter Reel Width W1 A B K P P1 P2 W Pin1 Quadrant SOIC-8 13 12.4 6.4 5.4 2.1 4. 8. 2. 12. Q1 MSOP-8 13 12.4 5.2 3.3 1.5 4. 8. 2. 12. Q1 DD1 TX1.
PACKAGE INFORMATION CARTON BOX DIMENSIONS NOTE: The picture is only for reference. Please make the object as the standard. KEY PARAMETER LIST OF CARTON BOX Reel Type Length Width Height Pizza/Carton 13 386 28 37 5 DD2 TX2.