TS372ID

TS372 Low power dual CMOS voltage comparator Features ■ Wide single supply range or dual supplies 3 V to 16 V or ±1.5 V to ±8 V ■ Very low supply current: 0.1 mA/comparator independent of supply voltage ■ Extremely low input bias current: 1 pA typ ■ Extremely low input offset currents: 1 pA typ ■ Low input offset voltage ■ Input common-mode voltage range includes GND ■ Low output saturation voltage 150 mV typical ■ Output compatible with TTL, MOS and CMOS ■ High input impedance: 1012 Ω typical ■ Fast response time: 200 ns typ for TTL level input step N DIP8 (plastic package) D SO8 (plastic micropackage) Applications ■ Battery powered electronics ■ General-purpose portable device ■ General-purpose low voltage application Pin connections (top view) Description  These devices consist of two independent precision voltage comparators, designed to operate with single or dual supplies.    These differential comparators use the STMicroelectronics silicon lin MOS process giving them an excellent consumption-speed ratio.  These devices are ideally suited for low consumption applications.       /UTPUT  )NVERTING)NPUT  .ON INVERTING)NPUT  6 ##  .ON INVERTING)NPUT  )NVERTING)NPUT  /UTPUT  6## April 2011 Doc ID 4068 Rev 2 1/10 www.st.com 10 Application schematic TS372 1 Application schematic Figure 1. Schematic diagram (1/2 TS372) 6## 4 4 4 4 4 4 4 4 2 4 4 4 4 4 4 4 4 /UTPUT 4 4 4 4 4 4 4 4 4 4 4 4 6## 4 4 4 4 4 )NPUT 4 )NPUT !- 2/10 Doc ID 4068 Rev 2 TS372 2 Absolute maximum ratings and operating conditions Absolute maximum ratings and operating conditions Table 1. Absolute maximum ratings Symbol VCC+ Vid Parameter Supply voltage(1) (2) Differential input voltage (4) Vi Input voltage Vo Output voltage Io Output current IF (3) Forward current in ESD protection diodes on input Duration of output circuit to GND pd Tstg Tj (5) (6) Power dissipation (7) DIP8 SO8 Storage temperature range Junction temperature Value Unit 18 V ±18 V 18 V 18 V 20 mA 50 mA Infinite 1250 710 mW -65 to +150 °C +150 °C 1. Maximum power supply voltage when the comparator is not switching. 2. All voltage values, except differential voltage, are with respect to network ground terminal. 3. Differential voltages are the non-inverting input terminal with respect to the inverting input terminal. 4. The magnitude of the input and the output voltages must never exceed the magnitude of the positive supply voltage. 5. Guaranteed by design. 6. Short-circuit from outputs to Vcc+ can cause excessive heating and eventual destruction. 7. Pd is calculated with Tamb = +25°C, Tj = +150°C and Rthja = 100°C/W for DIP8 package = 175°C/W for SO-8 package. Table 2. Operating conditions Symbol Parameter Value Unit 3 to 16 V V VCC+ Supply voltage Vicm Input common-mode voltage range(1) Tamb = 25°C Tmin ≤Tamb ≤Tmax TS372C TS372I/TS372M VCC+ -2 VCC+ -2.25 VCC+ -2.5 Toper Operating free-air temperature range TS372C TS372I TS372M 0 to +70 -40 to +125 -55 to +125 °C 1. And input voltages < = 12 V. Doc ID 4068 Rev 2 3/10 Electrical characteristics 3 TS372 Electrical characteristics Table 3. Symbol Vio Electrical characteristics at VCC+ = 5 V, VCC- = 0 V, Tamb = 25°C (unless otherwise specified) Parameter Min. Input offset voltage (Vic = Vicm min) (1) Tamb = 25°C Tmin ≤Tamb ≤Tmax Typ. Max. Unit 2 10 12 mV (2) Iio Input offset current Tamb = 25°C Tmin ≤Tamb ≤Tmax TS372C TS372I/TS372M Iib Input offset current (2) Tamb = 25°C Tmin ≤Tamb ≤Tmax TS372C TS372I/TS372M IOH High level output current (Vid = 1 V) Tamb = 25°C VOH = 5 V Tmin ≤Tamb ≤Tmax VOH = 15 V 0.1 VOL Low level output voltage (Vid = -1, IOL = 4 mA) Tamb = 25°C Tmin ≤Tamb ≤Tmax 100 IOL Low level output current (Vid = -1, VOL = 1.5 V) ICC Supply current (each comparator) (Vid = 1 V, no load) 1 100 200 pA 150 300 pA 1 1 6 400 700 45 150 nA µA mV mA 375 µA 1. The specified offset voltage is the maximum value required to drive the output down to 400 mV or up to 4 V with RL = 100 kΩ to Vcc+ 2. Maximum values including unavoidable inaccuracies of the industrial test. Table 4. Symbol tre Switching characteristics (VCC+ = 5 V, Tamb = 25°C) Parameter Response time (RL = 5.1 kΩ connected to 5 V, CL = 15 pF (1) 100mV input step with 5mV overdrive TTL level input step Min. Typ. 600 200 Max. Unit ns 1. The specified response time is the internal between the input signal and the instant when the output signal crosses 1.4 V. Note: 4/10 If one of the two channels is not used, it must be configured with a differential input voltage greater than 100 mV to avoid switching. Doc ID 4068 Rev 2 TS372 4 Package information Package information In order to meet environmental requirements, ST offers these devices in different grades of ECOPACK® packages, depending on their level of environmental compliance. ECOPACK® specifications, grade definitions and product status are available at: www.st.com. ECOPACK® is an ST trademark. Doc ID 4068 Rev 2 5/10 Package information 4.1 TS372 DIP8 package information Figure 2. DIP8 package mechanical drawing Table 5. DIP8 package mechanical data Dimensions Ref. Millimeters Min. Typ. A Max. Min. Typ. 5.33 Max. 0.210 A1 0.38 0.015 A2 2.92 3.30 4.95 0.115 0.130 0.195 b 0.36 0.46 0.56 0.014 0.018 0.022 b2 1.14 1.52 1.78 0.045 0.060 0.070 c 0.20 0.25 0.36 0.008 0.010 0.014 D 9.02 9.27 10.16 0.355 0.365 0.400 E 7.62 7.87 8.26 0.300 0.310 0.325 E1 6.10 6.35 7.11 0.240 0.250 0.280 e 2.54 0.100 eA 7.62 0.300 eB L 6/10 Inches 10.92 2.92 3.30 3.81 Doc ID 4068 Rev 2 0.430 0.115 0.130 0.150 TS372 4.2 Package information SO-8 package information Figure 3. SO-8 package mechanical drawing Table 6. SO-8 package mechanical data Dimensions Ref. Millimeters Min. Typ. A Inches Max. Min. Typ. 1.75 0.069 A1 0.10 A2 1.25 b 0.28 0.48 0.011 0.019 c 0.17 0.23 0.007 0.010 D 4.80 4.90 5.00 0.189 0.193 0.197 E 5.80 6.00 6.20 0.228 0.236 0.244 E1 3.80 3.90 4.00 0.150 0.154 0.157 e 0.25 Max. 0.004 0.010 0.049 1.27 0.050 h 0.25 0.50 0.010 0.020 L 0.40 1.27 0.016 0.050 L1 k ccc 1.04 0 0.040 8° 0.10 Doc ID 4068 Rev 2 1° 8° 0.004 7/10 Ordering information 5 Ordering information Table 7. 8/10 TS372 Order codes Part number Temperature range Package Packing TS372CD 0°C, +70°C SO-8 Tube TS372CDT 0°C, +70°C SO-8 Tape & reel TS372CN 0°C, +70°C DIP8 TS372ID -40°C, +125°C SO-8 Tube TS372IDT -40°C, +125°C SO-8 Tape & reel TS372IN -40°C, +125°C DIP8 Doc ID 4068 Rev 2 Marking TS372 6 Revision history Revision history Table 8. Document revision history Date Revision Changes 01-Feb-2002 1 Initial release. 28-Apr-2011 2 Document reformatted. Modified Table 2, Table 3 and Table 7. 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