SGM8140 Low Power, Vibration Sensor and PIR Sensor Analog Front End (AFE)

Transcription

1 SGM814 PRODUCT DESCRIPTION The SGM814 is a PIR sensor and vibration sensor analog front end which consists of 2 independent building block circuits. One is a dual rail-to-rail input and output operational amplifier, and the other is an ultra low power comparator. Both the operational amplifier and the comparator have been specifically designed to operate over a wide range of voltages from 1.4V to.v. The SGM814 only has 1.1μA working current, so it is ideal for use in a variety of battery-powered applications. The operational amplifier circuit is guaranteed to operate with a single supply voltage as low as 1.4V. It has a gain-bandwidth product of khz (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. Featuring a push-pull output stage, the SGM814 s comparator allows for operation with absolute minimum power consumption when driving any capacitive or resistive load. FEATURES Ultra Low Power: 1.1μA (TYP) at V S = V Wide Supply Voltage Range: 1.4V to.v Rail-to-Rail Input and Output Amplifier Amplifier Gain-Bandwidth Product: khz (TYP) at V S = V Amplifier is Unity Gain Stable Comparator Propagation Delay: 6μs (TYP) Comparator Push-Pull Output Current Drive: 19mA (TYP) at V S = V -4 to Operating Temperature Range Available in Green TQFN L Package APPLICATIONS Toll Booth Tags Wearable Products Temperature Measurement Battery Powered System Vibration Detector Alarm and Monitoring Circuits The SGM814 is specified for the -4 to industrial temperature range. The SGM814 is available in the Green TQFN L package. REV. A

2 SGM814 PACKAGE/ORDERING INFORMATION MODEL PACKAGE DESCRIPTION SPECIFIED TEMPERATURE RANGE ORDERING NUMBER SGM814 TQFN L -4 to SGM814YTQE16G/TR NOTE: XXXXX = Date Code and Vendor Code. PACKAGE MARKING SGM814 YTQE16 XXXXX PACKING OPTION 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, V CC...6V Input Common Mode Voltage Range... (-V S ) -.1V to (+V S ) +.1V Differential Input Voltage... (-V S ) - (+V S ) Junction Temperature...1 Storage Temperature Range...-6 to +1 Lead Temperature (Soldering, 1sec)...26 ESD Susceptibility HBM...4V CDM...1V RECOMMENDED OPERATING CONDITIONS Operating Temperature Range...-4 to PIN CONFIGURATION 1 (TOP VIEW) -V S NC INA INB- INA VOUTA 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. INB V S -V S VOUTB 3 1 NC -V S 4 9 -V S CIN+ CIN- NC COUT TQFN L 2

3 SGM814 BLOCK DIAGRAM +V S INA+ Amplifier A VOUTA CIN- INA- INB- INB+ Amplifier B VOUTB CIN+ Comparator COUT -V S PIN DESCRIPTION PIN NAME FUNCTION 1 INB- Negative Input of Amplifier B. 2 INB+ Positive Input of Amplifier B. 3 VOUTB Output of Amplifier B. 4 -V S Negative Supply. Always connect this pin to ground for single power supply Application. CIN+ Positive Input of Comparator. 6 CIN- Negative Input of Comparator. 7 NC No Connection. 8 COUT Output of Comparator. 9 -V S Negative Supply. Always connect this pin to ground for single power supply Application. 1 NC No Connection. 11 +V S Positive Power Supply. 12 VOUTA Output of Amplifier A. 13 INA- Negative Input of Amplifier A. 14 INA+ Positive Input of Amplifier A. 1 NC No Connection. 16 -Vs Negative Supply. Always connect this pin to ground for single power supply Application. 3

4 SGM814 ELECTRICAL CHARACTERISTICS PARAMETER CONDITIONS MIN TYP MAX UNITS Quiescent Current V S = V, V CM = 2.V, T A = µa, V CM =.7V, T A =.9 Operational Amplifier Only ( to V, -V S = GND, T A =, V CM = V S /2, V OUT V S /2 and R L = 1MΩ to V S /2, unless otherwise noted.) PARAMETER CONDITIONS MIN TYP MAX UNITS DC ELECTRICAL CHARACTERISTICS Input Offset Voltage (V OS ) V CM = V S / Input Offset Voltage Drift (ΔV OS /Δ T ) V CM = V S /2 2 µv/ C Power Supply Rejection Ratio (PSRR) to.v 69 8 db Input Common Mode Voltage Range (V CMR ) (-Vs) -.1 (+V S ) +.1 V V S = V, V CM = -.1V to.1v Common Mode Rejection Ratio (CMRR) V S = V, V CM = 2.V to.1v db V S = V, V CM = -.1V to 2.V Large Signal Voltage Gain (A VO ), R L = kω, V OUT = +V S -.1V 7 8 V S = V, R L = kω, V OUT = +V S -.1V db Input Bias Current (I B ) 1 pa Input Offset Current (I OS ) 1 pa Maximum Output Voltage Swing Short Circuit Current (I SC ) V OH V OL, R L = kω 12 V S = V, R L = kω 4 12, R L = kω V S = V, R L = kω V S = V, source 2 24 V S = V, sink 2 24 ma Supply Voltage 1.4. V AC ELECTRICAL CHARACTERISTICS (C L = 6pF) Gain-Bandwidth Product (GBP) 4.3 V S = V khz Slew Rate (SR), V OUT = 1V Step 1.3 V S = V, V OUT = 2V Step 1.6 V/ms Phase Margin (PM) to.v 6 Input Voltage Noise (e n p-p), f =.1Hz to 1Hz 4.4 V S = V, f =.1Hz to 1Hz 4. Input Voltage Noise Density (e n ), f = 1kHz 13 V S = V, f = 1kHz 13 µv P-P nv/ HZ 4

5 SGM814 ELECTRICAL CHARACTERISTICS Comparator Only (T A =,, -V S = V, V CM = V S /2 and V O = -V S, unless otherwise noted.) Input Offset Voltage PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS V OS V CM = V. 3.3 V CM = 1.4V. 3.2 Input Offset Average Drift 2 µv/ Common Mode Rejection Ratio CMRR V CM Stepped from V to.3v 6 V CM Stepped from.8v to 1.4V 7 V CM Stepped from V to 1.4V 7 Power Supply Rejection Ratio PSRR V S = 1.8V to.v, V CM = V 6 9 db Large Signal Voltage Gain A VO 1 db Output Swing High Output Swing Low Output Current V OH V OL I OUT V S = 1.8V, I O = μa T A 219 V S = 1.8V, I O = 1mA T A 12 V S = 1.8V, I O = -μa T A 127 V S = 1.8V, I O = -1mA T A 23 Source.7 Sink 2. Propagation Delay Overdrive = 1 12 (High to Low) Overdrive = 1 6 db ma μs Propagation Delay Overdrive = 1 26 (Low to High) Overdrive = 1 17 μs Rise Time t Rise Overdrive = 1, C L = 3pF, R L = 1MΩ 22 Overdrive = 1, C L = 3pF, R L = 1MΩ 22 ns Fall Time t Fall Overdrive = 1, C L = 3pF, R L = 1MΩ 1 Overdrive = 1, C L = 3pF, R L = 1MΩ 1 ns

6 SGM814 ELECTRICAL CHARACTERISTICS Comparator Only (T A =, V S = V, -V S = V, V CM = V S /2 and V O = -V S, unless otherwise noted.) Input Offset Voltage PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS V OS V CM = V. 3.3 V CM = V. 3.2 Input Offset Average Drift 2 µv/ Common Mode Rejection Ratio CMRR V CM Stepped from V to 3.9V 8 V CM Stepped from 4.4V to V 8 V CM Stepped from V to V 8 Power Supply Rejection Ratio PSRR V S = 1.8V to.v, V CM = V 6 9 db Large Signal Voltage Gain A VO 1 db Output Swing High Output Swing Low Output Current V OH V OL I OUT I O = μa T A 84 I O = 1mA T A 12 I O = -μa T A 9 I O = -1mA T A 143 Source T A 11. Sink T A 12.9 Propagation Delay Overdrive = 1 13 (High to Low) Overdrive = 1 6 db ma μs Propagation Delay Overdrive = 1 42 (Low to High) Overdrive = 1 33 μs Rise Time t Rise Overdrive = 1, C L = 3pF, R L = 1MΩ 8 Overdrive = 1, C L = 3pF, R L = 1MΩ 8 ns Fall Time t Fall Overdrive = 1, C L = 3pF, R L = 1MΩ 7 Overdrive = 1, C L = 3pF, R L = 1MΩ 6 ns 6

7 SGM814 TYPICAL PERFORMANCE CHARACTERISTICS Operational Amplifier Only T A =, V S = +1.4V to +V, -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 =.V R L = kω C L = 6pF A V = -1 V OUT (1V/div) V S =.V R L = kω C L = 6pF A V = +1 Time (ms/div) Time (ms/div) Small Signal Inverting Pulse Response Small Signal Non-Inverting Pulse Response V OUT (1/div) C L = 6pF R L = kω A V = -1 V OUT (1/div) C L = 6pF R L = kω A V = +1 Time (ms/div) Time (ms/div) 4 No Phase Reversal Slew Rate vs. Temperature Input, Output Voltage (V) V IN V OUT Slew Rate (V/ms) High to Low Low to High V S =.V -4 Time (ms/div) Temperature ( ) 7

8 SGM814 TYPICAL PERFORMANCE CHARACTERISTICS Operational Amplifier Only T A =, V S = +1.4V to +V, -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. Percentage of Amplifiers (%) Offset Voltage Production Distribution at +1.4V Offset Voltage Production Distribution at +V 96 Samples V CM = +V S /2 Percentage of Amplifiers (%) Samples V CM = +V S / Offset Voltage () Offset Voltage () Comparator Only Output Voltage Referenced to GND (V) Output Voltage Low vs. Sink Current.6..4 V S = V.3 V S = 2.V Sink Current (ma) Output Voltage Referenced to GND (V) Output Voltage Low vs. Sink Current Sink Current (ma) 8

9 SGM814 TYPICAL PERFORMANCE CHARACTERISTICS Comparator Only Output Voltage High vs. Source Current Output Voltage High vs. Source Current.6.6 Output Voltage Referenced to V S (V) V S = 2.V V S = V Output Voltage Referenced to V S (V) Source Current (ma) Source Current (ma) Propagation Delay L H (µs) Propagation Delay vs. Supply Voltage V CM = V S /2 V OD = 2-4 Propagation Delay H L (µs) Propagation Delay vs. Supply Voltage V CM = V S /2 V OD = Supply Voltage (V) Supply Voltage (V) Propagation Delay vs. Overdrive -4 V CM =.V Overdrive () Propagation Delay vs. Overdrive -4 V CM =.9V Overdrive () 9

10 SGM814 TYPICAL PERFORMANCE CHARACTERISTICS Comparator Only Propagation Delay vs. Overdrive Propagation Delay vs. Overdrive Overdrive () V S = 2.V V CM =.V V S = V V CM = 4.V Overdrive () Propagation Delay vs. Overdrive Overdrive () V S = V V CM =.V Offset Voltage (μv) Offset Voltage vs. Input Common Mode Voltage V S = V Input Common Mode Voltage (V) Propagation Delay vs. Input Common Mode Voltage V OD = 2-4 Propagation Delay vs. Input Common Mode Voltage 6 V S = 2.V -4 V OD = Input Common Mode Voltage (V) Input Common Mode Voltage (V) 1

11 SGM814 TYPICAL PERFORMANCE CHARACTERISTICS Comparator Only Propagation Delay vs. Input Common Mode Voltage Propagation Delay vs. Input Common Mode Voltage V S = V V OD = 2 Propagation Delay H-L (μs) V S = V V OD = Input Common Mode Voltage (V) Input Common Mode Voltage (V) 3 3 Propagation Delay vs. Overdrive V CM = V S /2 6 Propagation Delay vs. Overdrive V S = V V CM = V S /2 Propagation Delay (µs) L-H H-L Propagation Delay (µs) L-H H-L Overdrive () Overdrive () Propagation Delay (µs) Propagation Delay vs. Resistive Load L-H H-L Propagation Delay (µs) Propagation Delay vs. Resistive Load V S = V L-H H-L Resistive Load (kω) Resistive Load (kω) 11

12 SGM814 APPLICATION CIRCUIT 47kΩ 2.2MΩ 47kΩ 2.2MΩ 1μF 1nF 1 INB- 1μF 1nF VOUTB INA- VOUTA PIR Signal Input 1nF 1kΩ INB+ 2 1MΩ INA+ 14 1MΩ V CC = 3.3V V CC = 3.3V +V S 11 SGM814 CIN+ COUT 8 1kΩ.1μF 1MΩ Output 4, 9, 16 -V S 6 CIN- V CC = 3.3V 7kΩ 7kΩ 7kΩ.1μF Figure 1. Application Circuit for PIR Sensor 12

13 PACKAGE INFORMATION PACKAGE OUTLINE DIMENSIONS TQFN L D N9 e L D1 E E1 N N16 TOP VIEW k b N1 BOTTOM VIEW A SIDE VIEW A1 A2.3.6 RECOMMENDED LAND PATTERN (Unit: mm) Dimensions In Millimeters Dimensions In Inches Symbol MIN MAX MIN MAX A A A2.23 REF.8 REF D D E E k.2 MIN.8 MIN b e.6 TYP.26 TYP L TX84.

14 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 TQFN L Q1 DD1 TX1.

15 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 DD2 TX2.