RT2901H

RobuST high-temperature low-power quad voltage comparators

Document overview

• Manufacturer or author: STMICROELECTRONICS
• PDF pages: 12

Technical content

Datasheet sections

• 1 Schematic diagram
• 2 Package pin connections
• 3 Absolute maximum ratings and operating conditions
• 4 Electrical characteristics
• 5 Electrical characteristic curves
• 6 Package information
• 6.1 SO14 package information
• 7 Ordering information
• 8 Revision history

Features

Wide single supply voltage range or dual supplies for all devices: 2 V to 36 V or ±1 V to ±18 V Very low supply current (1.1 mA) independent of supply voltage (1.4 mW/comparator at 5 V) Low input bias current: 25 nA typ. Low input offset current: ±5 nA typ. Input common-mode voltage range includes ground Low output saturation voltage: 250 mV typ. (IO = 4 mA) Differential input voltage range equal to the supply voltage TTL, DTL, ECL, MOS, CMOS compatible outputs Intended for use in aerospace and defense applications: Dedicated traceability and part marking Approval documents available for production parts Adapted extended life time and obsolescence management Extended product change notification process Designed and manufactured to meet sub ppm quality goals Advanced mold and frame designs for superior resilience to harsh environments (acceleration, EMI, thermal, humidity) Extended screening capability on request Single fabrication, assembly, and test site Temperature range (-40 °C to 150 °C)

Applications

Description

This device consists of four independent precision voltage comparators. All comparators are designed specifically to operate from a single power supply over a wide range of voltages. Operation from split power supplies is also possible. These comparators also have a unique characteristic in that the input common-mode voltage range includes ground even though operated from a single power supply voltage. SO14

1 Schematic diagram

Figure 1: Schematic diagram (1/4 RT2901H) VCC- VCC- VCC+ VCC- 3.5µA 100µA 3.5µA 100µA Vo Non-Inverting Inverting Input Input

2 Package pin connections

Figure 2: Pin connections (top view)

3 Absolute maximum ratings and operating conditions

Table 1: Absolute maximum ratings Symbol Parameter Value Unit VCC Supply voltage ±18 or 36 V Vid Differential input voltage ±36 Vin Input voltage -0.3 to 36 Output short-circuit duration (1) 20 mA Rthja Thermal resistance junction-to-ambient (2) 105 °C/W Rthjc Thermal resistance junction-to-case (2) 31 Tj Maximum junction temperature 160 °C ESD HBM: human body model (3) 500 V MM: machine model (4) 100 CDM: charged device model (5) 1500 Tstg Storage temperature -65 to 150 °C Notes: (1)Short-circuits from the output to VCC+ can cause excessive heating and eventual destruction. The maximum output current is approximately 20 mA, independent of the magnitude of VCC+. (2)Short-circuits can cause excessive heating and destructive dissipation. Values are typical. (3)Human body model: A 100 pF capacitor is charged to the specified voltage, then discharged through a 1.5 kΩ resistor between two pins of the device. This is done for all couples of connected pin combinations while the other pins are floating. (4)Machine model: A 200 pF capacitor is charged to the specified voltage, then discharged directly between two pins of the device with no external series resistor (internal resistor < 5 Ω). This is done for all couples of connected pin combinations while the other pins are floating. (5)Charged device model: all pins and the package are charged together to the specified voltage and then discharged directly to the ground through only one pin. This is done for all pins. Table 2: Operating conditions Symbol Parameter Value Unit VCC+ Supply voltage 2 to 36 V Toper Operating free air temperature range -40 to 150 °C Vicm Input common mode voltage range (VCC = 30 V) (1) Tamb = 25 °C 0 to (VCC+) - 1.5 V Tmin ≤ Tamb ≤ Tmax 0 to (VCC+) - 2 Notes: (1)The input common-mode voltage of either input signal voltage should not be allowed to go negative by more than 0.3 V. The upper end of the common-mode voltage range is (VCC+) - 1.5 V, but either or both inputs can go to 30 V without damage.

4 Electrical characteristics

Table 3: VCC+ = 5 V, VCC- = ground, Tamb = 25 °C (unless otherwise specified) Symbol Parameter Test conditions Min. Typ. Max. Unit Vio Input offset voltage (1) 1 7 mV Tmin ≤ Tamb ≤ Tmax Iio Input offset current 5 50 nA Tmin ≤ Tamb ≤ Tmax 150 Iib Input bias current (II+ or II-) (2) 25 250 Tmin ≤ Tamb ≤ Tmax 400 Avd Large signal voltage gain, VCC = 15 V, R = 15 kΩ, Vo = 1 to 11 V 25 200 V/mV ICC Supply current (all comparators) VCC = 5 V, no load 1.1 2 mA VCC = 30 V, no load 1.3 2.5 VID Differential input voltage (3) VCC+ V VOL Low level output voltage Vid = -1 V, Isink = 4 mA 250 400 mV Tmin ≤ Tamb ≤ Tmax 700 IOH High level output current VCC = Vo = 30 V, Vid = 1 V 0.1 nA Tmin ≤ Tamb ≤ Tmax 1 µA Isink Output sink current Vid = -1 V, Vo = 1.5 V 6 16 mA Tmin ≤ Tamb ≤ Tmax 2 tre Small signal response time, RL = 5.1 kΩ connected to VCC+ (4) 1.3 µs trel Large signal response time, TTL input, Vref = 1.4 V, RL = 5.1 kΩ to VCC+ (5) Output signal at 50 % of final value 500 ns Output signal at 95 % of final value 1 µs Notes: (1)At output switch point, VO ≈ 1.4 V, RS = 0 with VCC+ from 5 V to 30 V, and over the full input common-mode range (0 V to (VCC+) – 1.5 V). (2)The direction of the input current is out of the IC due to the PNP input stage. This current is essentially constant, independent of the state of the output, so there is no load on the reference of input lines. (3)The response time specified is for a 100 mV input step with 5 mV overdrive. (4)Positive excursions of input voltage may exceed the power supply level. As long as the other voltage remains within the common-mode range, the comparator will provide a proper output state. The low input voltage state must not be less than –0.3 V (or 0.3 V below the negative power supply, if used). (5)Maximum values are guaranteed by design

5 Electrical characteristic curves

Figure 3: Supply current vs. supply voltage Figure 4: Input current vs. supply voltage Figure 5: Output saturation voltage vs. output current (VCC = 5 V) Figure 6: Output saturation voltage vs. output current (VCC = 30 V) Figure 7: Response time for various input overdrives - positive transition Figure 8: Response time for various input overdrives - negative transition 0 10 20 30 40 0.0 0.2 0.4 0.6 0.8 1.0 TAMB = + 150 °C TAMB = + 125 °C TAMB = + 25 °C TAMB = - 40 °C SUPPLY CURRENT (mA) SUPPLY VOLTAGE (V) 0 10 20 30 40 TAMB = + 150 °C TAMB = + 125 °C TAMB = + 25 °C TAMB = - 40 °C INPUT BIAS CURRENT (nA) SUPPLY VOLTAGE (V) 1E-5 1E-4 1E-3 0.01 0.1 1E-3 0.01 0.1 150°C -40°C Curves done for : Output sink current (A) Saturation voltage (V) Vol = f(Isink) - VCC = 5 V -Vid = -1 V - Vicm = Vcc/2 1E-5 1E-4 1E-3 0.01 0.1 1E-3 0.01 0.1 150°C -40°C Curves done for : Output sink current (A) Vol = f(Isink) - VCC = 30 V -Vid = -1 V - Vicm = Vcc/2 Saturation voltage (V)

6 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.

6.1 SO14 package information

Figure 9: SO14 package mechanical drawing Table 4: SO14 package mechanical data Ref Dimensions Millimeters Inches A 1.75 0.068 a1 0.1 0.2 0.003 0.007 1.65 0.064 b 0.35 0.46 0.013 0.018 b1 0.19 0.25 0.007 0.010 C 0.5 0.019 c1 45° (typ.) D 8.55 8.75 0.336 0.344 E 5.8 6.2 0.228 0.244 e 1.27 0.050 7.62 0.300 F 3.8 4.0 0.149 0.157 G 4.6 5.3 0.181 0.208 L 0.5 1.27 0.019 0.050 M 0.68 0.026 S 8° (max.)

7 Ordering information

Table 5: Order codes Order code Temperature range Package Packaging Marking RT2901HYDT -40 °C to 150 °C SO14 Tape and reel R2901HY

8 Revision history

Table 6: Document revision history Date Revision Changes 08-Oct-2014 1 Initial release 07-Nov-2016 2 Updated datasheet layout: silhouette, pinout, absolute maximum ratings, and electrical characteristic curves. Table 2: "Operating conditions": updated the supply voltage from "2.5 to 6 V" to "2 to 36 V.