Datasheet

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This is information on a product in full production.

August 2012 Doc ID 9557 Rev 7 1/21

TS982

Wide bandwidth dual bipolar operational amplifier

Datasheet − production data

Features

■ Operating from V

= 2.5 V to 5.5 V

■ 200 mA output current on each amplifier

■ High dissipation package

■ Rail-to-rail input and output

■ Unity gain stable

Applications

■ Hall sensor compensation coil

■ Servo amplifier

■ Motor driver

■ Industrial

■ Automotive

Description

The TS982 device is a dual operational amplifier

able to drive 200 mA down to voltages as low as

2.7 V.

The SO-8 exposed-pad package allows high

current output at high ambient temperatures

making it a reliable solution for automotive and

industrial applications.

The TS982 device is stable with a unity gain.

Non-inverting input1

Inverting input1 Output2

Output1

Non-inverting input2

Inverting input2

Cross section view showing exposed-pad

This pad can be connected to a (-V

) copper area on the PCB

tin

Pin connections (top view)

SO-8 exposed-pad

(plastic micropackage)

www.st.com

Summary of content (21 pages)

PAGE 1
TS982 Wide bandwidth dual bipolar operational amplifier Datasheet − production data Features ■ Operating from VCC = 2.5 V to 5.
PAGE 2
Contents TS982 Contents 1 Absolute maximum ratings and operating conditions . . . . . . . . . . . . . 3 2 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 3 Application information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 3.1 Exposed-pad package description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 3.2 Exposed-pad electrical connection . . . . . . . . . . . . . . . . . . . . . . . . . . .
PAGE 3
TS982 1 Absolute maximum ratings and operating conditions Absolute maximum ratings and operating conditions Table 1. Absolute maximum ratings (AMR) Symbol Parameter VCC Supply voltage(1) Vin Input voltage Value Unit 6 V -0.3 V to VCC +0.
PAGE 4
Electrical characteristics 2 TS982 Electrical characteristics Table 3. Electrical characteristics for VCC+ = +5 V, VCC- = 0 V, and Tamb = 25 °C (unless otherwise specified) Symbol Parameter Min. Typ. Max. Unit 5.5 7.2 7.
PAGE 5
TS982 Electrical characteristics Table 4. Electrical characteristics for VCC+ = +3.3 V, VCC- = 0 V, and Tamb = 25 °C (unless otherwise specified)(1) Symbol Parameter Min. Typ. Max. Unit 5.3 7.2 7.
PAGE 6
Electrical characteristics Table 5. Electrical characteristics for VCC = +2.7 V, VCC- = 0 V, and Tamb = 25 °C (unless otherwise specified) Symbol Parameter Min. Typ. Max. Unit 5.3 6.4 6.
PAGE 7
TS982 Electrical characteristics Figure 1. Current consumption vs. supply voltage Figure 2. Voltage drop vs. output sourcing current No load Figure 3. Voltage drop vs. output sinking current Figure 4. Voltage drop vs. supply voltage (sourcing) Figure 5. Voltage drop vs. supply voltage (sinking) Figure 6. Voltage drop vs.
PAGE 8
Electrical characteristics TS982 Figure 7. Voltage drop vs. temperature (Iout = 100 mA) Figure 9. Open loop gain and phase Figure 10. Open loop gain and phase vs. frequency (VCC = 2.7 V, RL = 8 Ω) vs. frequency (VCC = 5 V, RL = 8 Ω) Figure 11. Open loop gain and phase Figure 12. Open loop gain and phase vs. frequency (VCC = 2.7 V, RL = 16 Ω) vs. frequency (VCC = 5 V, RL = 16 Ω) 8/21 Figure 8. Doc ID 9557 Rev 7 Voltage drop vs.
PAGE 9
TS982 Electrical characteristics Figure 13. Open loop gain and phase Figure 14. Open loop gain and phase vs. frequency (VCC = 2.7 V, RL = 32 Ω) vs. frequency (VCC = 5 V, RL = 32 Ω) Figure 15. Open loop gain and phase Figure 16. vs. frequency (VCC = 2.7 V, RL = 600 Ω) Open loop gain and phase vs. frequency (VCC = 5 V, RL = 600 Ω) Figure 17. Open loop gain and phase Figure 18. vs. frequency (VCC = 2.7 V, RL = 5 kΩ) Open loop gain and phase vs. frequency (VCC = 2.
PAGE 10
Electrical characteristics TS982 Figure 20. Gain margin vs. supply voltage (RL = 8 Ω) 50 50 40 40 Gain margin (dB) Phase margin (deg.) Figure 19. Phase margin vs. supply voltage (RL = 8 Ω) 30 20 10 0 2.0 2.5 3.0 3.5 4.0 Power supply voltage (V ) 4.5 50 50 40 40 30 20 0 2.0 3.0 3.5 4.0 Power supply voltage (V ) 4.5 5.0 30 20 10 2.5 3.0 3.5 4.0 Power supply voltage (V ) 4.5 0 2.0 5.0 Figure 23. Phase margin vs.
PAGE 11
TS982 Electrical characteristics Figure 25. Phase margin vs. supply voltage (RL = 600 Ω) Figure 26. Gain margin vs. supply voltage (RL = 600 Ω) 20 70 50 Gain margin (dB) Phase margin (deg.) 60 40 30 20 10 10 0 2.0 2.5 3.0 3.5 4.0 Power supply voltage (V ) 4.5 0 2.0 5.0 Figure 27. Phase margin vs. supply voltage (RL = 5 kΩ) 2.5 3.0 3.5 4.0 Power supply voltage (V ) 4.5 5.0 Figure 28. Gain margin vs. supply voltage (RL = 5 kΩ) 20 70 50 Gain margin (dB) Phase margin (deg.
PAGE 12
Electrical characteristics TS982 Figure 31. Distortion vs. output voltage (RL = 8 Ω, F = 1 kHz, AV = +1, BW < 80 kHz) = 2.7 V Figure 32. Distortion vs. output voltage (RL = 16 Ω, F = 1 kHz, AV = +1, BW < 80 kHz) =5V = 2.7 V =5V = 3.3 V = 3.3 V Figure 33. Crosstalk vs. frequency Figure 34. Crosstalk vs. frequency (RL = 8 Ω, VCC = 5 V, Pout = 100 mW, (RL = 16 Ω, VCC = 5 V, Pout = 90 mW, AV = -1, BW < 125 kHz) AV = -1, BW < 125 kHz) Figure 35. Crosstalk vs. frequency Figure 36. Crosstalk vs.
PAGE 13
TS982 Electrical characteristics Equivalent input noise voltage (nv/ Hz) Figure 37. Crosstalk vs. frequency Figure 38. Equivalent input noise voltage (RL = 5 kΩ, VCC = 5 V, Vout = 1.5 Vrms, vs. frequency AV = -1, BW < 125 kHz) 25 20 15 10 5 0.02 0.1 1 Frequency (kHz) 10 Figure 39. Power supply rejection ratio vs.
PAGE 14
Application information TS982 3 Application information 3.1 Exposed-pad package description The dual operational amplifier TS982 is housed in an SO-8 exposed-pad plastic package. As shown in Figure 40, the die is mounted and glued on a lead frame. This lead frame is exposed as a thermal pad on the underside of the package. The thermal contact is direct with the die and therefore, offers an excellent thermal performance in comparison with the common SO packages.
PAGE 15
TS982 3.3 Application information Thermal management benefits A good thermal design is important to maintain the temperature of the silicon junction below Tj = 150 °C as given in the absolute maximum ratings and also to maintain the operating power level. Another effect of temperature is that the life expectancy of an integrated circuit decreases exponentially when operating at high temperature over an extended period of time. It is estimated that, the chip failure rate doubles for every 10 to 20 °C.
PAGE 16
Application information TS982 Figure 42. Rthja of the TS982 vs. top side copper area The ultimate Rthja of the package on a 4-layer PCB under natural convection conditions, is 45 °C/W by using two power planes and metallized holes. 3.5 Parallel operation Using the two amplifiers of the TS982 device in parallel mode provides a higher output current: 400 mA. Figure 43.
PAGE 17
TS982 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.
PAGE 18
Package information TS982 Figure 44. SO-8 exposed pad package outline Table 6. SO-8 exposed pad package mechanical data Dimensions Symbol Millimeters Min. Typ. Inches Max. Min. Max. A 1.35 1.75 0.053 0.069 A1 0.10 0.15 0.04 0.059 A2 1.10 1.65 0.043 0.065 B 0.33 0.51 0.013 0.020 C 0.19 0.25 0.007 0.010 D 4.80 5.00 0.189 0.197 D1 E 3.1 3.80 0.122 4.00 0.150 0.157 E1 2.41 0.095 e 1.27 0.050 H 5.80 6.20 0.228 0.244 h 0.25 0.50 0.010 0.020 L 0.40 1.
PAGE 19
TS982 5 Ordering information Ordering information Table 7. Order codes Order code Temperature range TS982IDWT TS982IYDWT(1) -40 °C to +125 °C Package Packaging Marking SO-8 exposed-pad Tape and reel TS982I SO-8 exposed-pad (automotive grade) Tape and reel TS982IY 1. Qualified and characterized according to AEC Q100 and Q003 or equivalent, advanced screening according to AEC Q001 and Q 002 or equivalent.
PAGE 20
Revision history 6 TS982 Revision history Table 8. Document revision history Date Revision 02-Jan-2004 1 First release. 01-Feb- 2004 2 Order codes modified on cover page. 01-Dec-2005 3 PPAP references inserted in the datasheet see Table 5: Ordering information on page 19. 02-Apr-2006 4 VOH and VOL limits (at VCC = 4.75 V, Tamb = 125° C) added in Table 3. on page 4. 5 Corrections to Section 3.3: Thermal management benefits and Section 3.4: Thermal management guidelines on page 15.
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TS982 Please Read Carefully: Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST’s terms and conditions of sale.