MAX997 Maxim, MAX997 Datasheet

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MAX997

Manufacturer Part Number
MAX997
Description
The MAX961–MAX964/MAX997/MAX999 are low-power, ultra-high-speed comparators with internal hysteresis
Manufacturer
Maxim
Datasheet

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_________________General Description
The MAX961–MAX964/MAX997/MAX999 are low-power,
ultra-high-speed comparators with internal hysteresis.
These devices are optimized for single +3V or +5V
operation. The input common-mode range extends
100mV Beyond-the-Rails
or source 4mA to within 0.52V of GND and V
Propagation delay is 4.5ns (5mV overdrive), while sup-
ply current is 5mA per comparator.
The MAX961/MAX963/MAX964 and MAX997 have a
shutdown mode in which they consume only 270µA
supply current per comparator. The MAX961/MAX963
provide complementary outputs and a latch-enable fea-
ture. Latch enable allows the user to hold a valid com-
parator output. The MAX999 is available in a tiny
SOT23-5 package. The single MAX961/MAX997 and
dual MAX962 are available in space-saving 8-pin
µMAX
________________________Applications
19-1129; Rev 6; 2/08
Beyond-the-Rails is a trademark and µMAX is a registered
trademark of Maxim Integrated Products, Inc.
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
MAX961
MAX962
MAX963
MAX964
MAX997
MAX999
®
Single 3V/5V Systems
Portable/Battery-Powered Systems
Threshold Detectors/Discriminators
GPS Receivers
Line Receivers
Zero-Crossing Detectors
High-Speed Sampling Circuits
Single/Dual/Quad, Ultra-High-Speed, +3V/+5V,
packages.
1
2
2
4
1
1
________________________________________________________________ Maxim Integrated Products
Yes
Yes
No
No
No
No
, and the outputs can sink
Yes
Yes
Yes
Yes
No
No
Selector Guide
Yes
Yes
No
No
No
No
Beyond-the-Rails Comparators
14 SO
16 SO/QSOP
8 SO/µMAX
5 SOT23
8 SO/µMAX
8 SO/µMAX
CC
.
♦ ♦ Ultra-Fast, 4.5ns Propagation Delay
♦ ♦ Ideal for +3V and +5V Single-Supply Applications
♦ ♦ Beyond-the-Rails Input Voltage Range
♦ ♦ Low, 5mA Supply Current (MAX997/MAX999)
♦ ♦ 3.5mV Internal Hysteresis for Clean Switching
♦ ♦ Output Latch (MAX961/MAX963)
♦ ♦ TTL/CMOS-Compatible Outputs
♦ ♦ Shutdown Mode
♦ ♦ Available in Space-Saving Packages:
____________________________Features
Note: All E grade devices are specified over the -40°C to +85°C
operating temperature range. MAX999AAUK is specified over the
-40°C to +125°C operating temperature range.
+ Denotes a lead-free package.
MAX961ESA
MAX961EUA-T
MAX962ESA
MAX962EUA-T
MAX963ESD
MAX964ESE
MAX964EEE
MAX997ESA
MAX997EUA-T
MAX999AAUK+T
MAX999EUK-T
Pin Configurations continued at end of data sheet.
(MAX961/MAX963/MAX964/MAX997)
TOP VIEW
5-Pin SOT23 (MAX999)
8-Pin µMAX (MAX961/MAX962/MAX997)
16-Pin QSOP (MAX964)
PART
GND
IN+
Q
PIN-PACKAGE
8 SO
8 µMAX-8
8 SO
8 µMAX-8
14 SO
16 Narrow SO
16 QSOP
8 SO
8 µMAX-8
5 SOT23-5
5 SOT23-5
1
2
3
Ordering Information
SOT23-5
MAX999
Pin Configurations
5
4
V
IN-
CC
MARK
+AFEI
ACAB
TOP
CODE
S14-1
S16-1
E16-1
U5+1
PKG
U8-1
U8-1
U8-1
U5-1
S8-2
S8-2
S8-2
1

Related parts for MAX997

MAX997 Summary of contents

Page 1

... Beyond-the-Rails Comparators ____________________________Features ♦ ♦ Ultra-Fast, 4.5ns Propagation Delay ♦ ♦ Ideal for +3V and +5V Single-Supply Applications ♦ ♦ Beyond-the-Rails Input Voltage Range ♦ ♦ Low, 5mA Supply Current (MAX997/MAX999) ♦ ♦ 3.5mV Internal Hysteresis for Clean Switching . CC ♦ ♦ Output Latch (MAX961/MAX963) ♦ ...

Page 2

... Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability ...

Page 3

... SINK MAX999AAUK V = 1.4V 2.7V 30 OUT CC MAX961/MAX963 MAX962/MAX964 MAX997/MAX999E MAX999AAUK MAX961/MAX963/MAX964/ MAX997 MAX961/MAX963/MAX964/ MAX997 and OUT 0 LOGIC CC 5mV E grade overdrive MAX999AAUK (Note 7) Between any two channels or outputs (Q/Q) Between t and t PD- ...

Page 4

... Shutdown Disable Time t ON Note 1: The MAX961EUA/MAX962EUA/MAX997EUA/MAX999EUK are 100% production tested at T tions are guaranteed by design. Note 2: Inferred by CMRR. Either input can be driven to the absolute maximum limit without false output inversion, provided that the other input is within the input voltage range. ...

Page 5

... CAPACITIVE LOAD (pF) OUTPUT LOW VOLTAGE vs. SINK CURRENT 0.5 0 -40° +25° +85°C A 0.2 0 100 10,000 SINK CURRENT ( A) MAX997/MAX999 SUPPLY CURRENT PER COMPARATOR vs. SUPPLY VOLTAGE +85° SUPPLY VOLTAGE (V) 100 120 1000 10,000 T = +25°C ...

Page 6

... Single/Dual/Quad, Ultra-High-Speed, +3V/+5V, Beyond-the-Rails Comparators ____________________________Typical Operating Characteristics (continued +3.0V 5pF, 5mV of overdrive LOAD MAX961/MAX963/MAX964/MAX997 SHUTDOWN SUPPLY CURRENT vs. TEMPERATURE 310 V = 5.0V CC 260 210 160 V = 2.7V CC 110 60 -40 - TEMPERATURE (°C) INPUT BIAS CURRENT ( vs. COMMON-MODE VOLTAGE 5. +85 C ...

Page 7

... — 14 — PROPAGATION DELAY (t ) PD- MAX997toc16 INPUT 50mV/div GND OUTPUT 1V/div GND 5ns/div FUNCTION No Connection. Not internally connected. Comparator A Inverting Input Comparator A Noninverting Input Latch-Enable Input. The output latches when LE_ is high. The latch is transparent when LE_ is low. ...

Page 8

... These devices have a small amount of internal hystere- sis to counter parasitic effects and noise. The added hysteresis of the MAX961–MAX964/MAX997/ MAX999 creates two trip points: one for the rising input voltage and one for the falling input voltage (Figure 1). ...

Page 9

... F The input circuitry allows the MAX961–MAX964/ MAX997/MAX999’s input common-mode range to extend 100mV beyond both power-supply rails. The output remains in the correct logic state if one or both inputs are within the common-mode range. Taking either input outside the common-mode range causes the input to saturate and the propagation delay to increase ...

Page 10

... A heavy capacitive load slows down the voltage output transition. When SHDN is high, the MAX961/MAX963/MAX964/ MAX997 shut down. When shut down, the supply cur- rent drops to 270µA per comparator, and the outputs become high impedance. SHDN has a high input impedance. Connect SHDN to GND for normal opera- tion. Exit shutdown with LE low ...

Page 11

... LEA 3 12 MAX963 GND 4 11 LEB 5 10 INB INB ___________________Chip Information MAX961/MAX962 TRANSISTOR COUNT: 286 MAX963/MAX964 TRANSISTOR COUNT: 607 MAX997/MAX999 TRANSISTOR COUNT: 142 ______________________________________________________________________________________ Beyond-the-Rails Comparators INA INA- MAX961 MAX962 INB+ 4 GND INB- 5 SO/ MAX ...

Page 12

... Single/Dual/Quad, Ultra-High-Speed, +3V/+5V, Beyond-the-Rails Comparators (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information go to www.maxim-ic.com/packages Ø0.50±0.1 0.6±0.1 1 0.6±0.1 D TOP VIEW FRONT VIEW 12 ______________________________________________________________________________________ BOTTOM VIEW ...

Page 13

... Single/Dual/Quad, Ultra-High-Speed, +3V/+5V, (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information go to www.maxim-ic.com/packages.) ______________________________________________________________________________________ Beyond-the-Rails Comparators Package Information (continued) 13 ...

Page 14

... Single/Dual/Quad, Ultra-High-Speed, +3V/+5V, Beyond-the-Rails Comparators (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information go to www.maxim-ic.com/packages TOP VIEW FRONT VIEW 14 ______________________________________________________________________________________ Package Information (continued 0∞-8∞ ...

Page 15

... Single/Dual/Quad, Ultra-High-Speed, +3V/+5V, (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information go to www.maxim-ic.com/packages.) ______________________________________________________________________________________ Beyond-the-Rails Comparators Package Information (continued) 15 ...

Page 16

... Initial release 1 12/96 Added 8-pin µMAX packages. Correct minor errors. 2 3/97 Added dual and quad MAX963/MAX964 packages. 3 7/97 Added new MAX997 and MAX999 parts. 4 3/99 New wafer fab/process change to CB20. Update specifications and TOCs. 5 2/07 Added new Current into Input Pins in the Absolute Maximum Ratings. 6 12/07 Added new automotive grade MAX999AAUK part and specifications. ...

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