Datasheet

ManualsBrandsSTMICROELECTRONICS ManualsLinear ICsLinear IC - Comparator Multi-purpose DTL, MOS, Open collector, TTL DIP 14

Rev 3

October 2005 1/12

LM2901

Low Power Quad Voltage Comparator

■ Wide single supply voltage range or dual

supplies for all devices: +2V to +36V or ±1V to

±18V

■ Very low supply current (1.1mA) independent

of supply voltage (1.4mW/comparator at +5V)

■ Low input bias current: 25nA typ.

■ Low input offset current: ±5nA typ.

■ Input common-mode voltage range includes

ground

■ Low output saturation voltage:

250mV typ. (I

= 4mA)

■ Differential input voltage range equal to the

supply voltage

■ TTL, DTL, ECL, MOS, CMOS compatible

outputs

Description

This device consists of four independent precision

voltage comparators. All these comparators were

designed specifically to operate from a single

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.

Order Codes

DIP14

(Plastic Package)

SO-14

(Plastic Micropackage)

TSSOP14

(Thin Shrink Small Outline Package)

Pin connections (top view)

Output 2

Output 4

Output 3

Non-inverting input 4

Non-inverting input 3

Inverting input 4

Output 1

Inverting input 1

Non-inverting input 2

Inverting input 3

Non-inverting input 1

Inverting input 2

Part Number

Temperature

Range

Package Packing Marking

LM2901N

-40°C, +125°C

DIP14 Tube LM2901N

LM2901D/LM2901DT SO-14 Tube or Tape & Reel

2901

LM2901PT

TSSOP14

(Thin Shrink Outline Package)

Tape & Reel

LM2901YD/YDT SO-14 (automotive grade level) Tube or Tape & Reel

2901Y

LM2901YPT TSSOP14 (automotive grade level) Tape & Reel

www.st.com

Summary of content (12 pages)

PAGE 1
LM2901 Low Power Quad Voltage Comparator ■ Wide single supply voltage range or dual supplies for all devices: +2V to +36V or ±1V to ±18V ■ Very low supply current (1.1mA) independent of supply voltage (1.4mW/comparator at +5V) ■ Low input bias current: 25nA typ. ■ Low input offset current: ±5nA typ. ■ Input common-mode voltage range includes ground ■ Low output saturation voltage: 250mV typ.
PAGE 2
Absolute Maximum Ratings 1 LM2901 Absolute Maximum Ratings Table 1. Key parameters and their absolute maximum ratings Symbol Parameter VCC Supply Voltage VID Differential Input Voltage VI Input Voltage Output Short-circuit to Ground Value Unit ±18 to 36 V ±36 V -0.3 to +36 V (1) Power Dissipation (2) Pd TJ Tstg Junction Temperature mW +150 °C -65 to +150 °C 1.
PAGE 3
LM2901 2 Typical Application Schematics Typical Application Schematics Figure 1.
PAGE 4
Electrical Characteristics 3 LM2901 Electrical Characteristics Table 3. VCC+ = 5V, Vcc- = GND, Tamb = 25°C (unless otherwise specified) Symbol Parameter Min. Typ. Max. Unit 1 7 15 mV 5 50 150 nA 25 250 400 nA Input Offset Voltage (1) Vio Tamb = +25°C Tmin ≤ T amb ≤ Tmax. Input Offset Current Iio Tamb = +25°C Tmin ≤ T amb ≤ Tmax. Input Bias Current (II+ or II-) (2) Iib Avd Tamb = 2.5V Tmin ≤ T amb ≤ Tmax.
PAGE 5
LM2901 Electrical Characteristics Figure 2. Supply current vs. supply voltage Figure 3. Input current vs. supply voltage Figure 4. Output saturation voltage vs. output Figure 5. current Response time for various input overdrives - negative transition Figure 6.
PAGE 6
Electrical Characteristics LM2901 Figure 7. Basic comparator Figure 8. Figure 9. Driving TTL Figure 10. Low frequency op-amp Figure 11. Low frequency op-amp 6/12 Driving CMOS Figure 12.
PAGE 7
LM2901 Electrical Characteristics Figure 13. Low frequency op- amp with offset adjust Figure 14. Zero crossing detector (single power supply) Figure 15. Limit comparator Figure 16. Split-supply applications - zero crossing detector Figure 17. Crystal controlled oscillator Figure 18.
PAGE 8
Electrical Characteristics Figure 19. Time delay generator Figure 20.
PAGE 9
LM2901 4 PACKAGE MECHANICAL DATA PACKAGE MECHANICAL DATA In order to meet environmental requirements, ST offers these devices in ECOPACK® packages. These packages have a Lead-free second level interconnect. The category of second level interconnect is marked on the package and on the inner box label, in compliance with JEDEC Standard JESD97. The maximum ratings related to soldering conditions are also marked on the inner box label. ECOPACK is an ST trademark. ECOPACK specifications are available at: www.
PAGE 10
PACKAGE MECHANICAL DATA 4.2 LM2901 SO-14 package SO-14 MECHANICAL DATA DIM. mm. MIN. TYP A a1 inch MAX. MIN. TYP. 1.75 0.1 0.068 0.2 a2 0.003 0.007 0.46 0.013 0.018 0.25 0.007 1.65 b 0.35 b1 0.19 C MAX. 0.064 0.5 0.010 0.019 c1 45˚ (typ.) D 8.55 E 5.8 e 8.75 0.336 6.2 0.228 1.27 e3 0.344 0.244 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 S 0.68 0.026 8 ˚ (max.
PAGE 11
LM2901 4.3 PACKAGE MECHANICAL DATA TSSOP14 package TSSOP14 MECHANICAL DATA mm. inch DIM. MIN. TYP A MAX. MIN. TYP. MAX. 1.2 A1 0.05 A2 0.8 b 0.047 0.15 0.002 0.004 0.006 1.05 0.031 0.039 0.041 0.19 0.30 0.007 0.012 c 0.09 0.20 0.004 0.0089 D 4.9 5 5.1 0.193 0.197 0.201 E 6.2 6.4 6.6 0.244 0.252 0.260 E1 4.3 4.4 4.48 0.169 0.173 0.176 1 e 0.65 BSC K 0˚ L 0.45 A 0.60 0.0256 BSC 8˚ 0˚ 0.75 0.018 8˚ 0.024 0.
PAGE 12
Revision History 5 LM2901 Revision History Date Revision Changes Jan. 2002 1 Initial release. July 2005 2 1 - PPAP references inserted in the datasheet see Table : Order Codes on page 1 . 2 - ESD protection inserted in Table 1 on page 2. Oct. 2005 3 The following changes were made in this revision: – PPAP part number added in table Order Codes on page 1. – Formatting changes throughout. Information furnished is believed to be accurate and reliable.