|
|
|
MAX987, MAX988, MAX991, MAX992, MAX995, MAX996
High-Speed, Micropower, Low-Voltage, SOT23, Rail-to-Rail I/O Comparators
|
Status
Active: In Production.
Description
The MAX987/MAX988/MAX991/MAX992/MAX995/
MAX996 single/dual/quad micropower comparators
feature low-voltage operation and rail-to-rail inputs and
outputs. Their operating voltage ranges from +2.5V to
+5.5V, making them ideal for both 3V and 5V systems.
These comparators also operate with ±1.25V to ±2.75V
dual supplies. They consume only 48µA per comparator
while achieving a 120ns propagation delay.
Input bias current is typically 1.0pA, and input offset voltage
is typically 0.5mV. Internal hysteresis ensures clean
output switching, even with slow-moving input signals.
The output stage's unique design limits supply-current
surges while switching, virtually eliminating the supply
glitches typical of many other comparators. The
MAX987/MAX991/MAX995 have a push-pull output
stage that sinks as well as sources current. Large internal
output drivers allow rail-to-rail output swing with
loads up to 8mA. The MAX988/MAX992/MAX996 have
an open-drain output stage that can be pulled beyond
VCC to 6V (max) above VEE. These open-drain versions
are ideal for level translators and bipolar to single-ended
converters.
The single MAX987/MAX988 are available in tiny 5-pin
SC70 packages, while the dual MAX991/MAX992 are
available in ultra-small 8-pin SOT23 and µMAX® packages.
|
|
Data Sheet
|
Key Features
- 120ns Propagation Delay
- 48µA Quiescent Supply Current
- +2.5V to +5.5V Single-Supply Operation
- Common-Mode Input Voltage Range Extends 250mV Beyond the Rails
- Push-Pull Output Stage Sinks and Sources 8mA Current (MAX987/MAX991/MAX995)
- Open-Drain Output Voltage Extends Beyond VCC (MAX988/MAX992/MAX996)
- Unique Output Stage Reduces Output Switching Current, Minimizing Overall Power Consumption
- 100µA Supply Current at 1MHz Switching Frequency
- No Phase Reversal for Overdriven Inputs
- Available in Space-Saving Packages:
- 5-Pin SOT23 (MAX987/MAX988)
- 8-Pin µMAX (MAX991/MAX992)
|
|
Applications/Uses
- Digital-Line Receivers
- Ground/Supply Sensing
- IR Receivers
- Level Translators
- Mobile Communications
- Portable Battery-Powered Systems
- Threshold Detectors
- Window Comparators
- Zero-Crossing Detectors
|
|
|
|
Key Specifications:
| Comparators |
| Part Number |
Comp-
arators |
tPD
(ns) |
Input Range |
VSUPPLY (Total)
(V) |
VSUPPLY (Total)
(V) |
ICC per Comp.
(µA) |
VOS
(mV) |
VOS
(mV) |
Logic Out |
Oper. Temp.
(°C) |
Package/Pins |
Smallest Available Pckg.
(mm2) |
Budgetary Price |
| typ |
min |
max |
max |
typ |
max |
max w/pins |
See Notes |
| MAX987 |
1 |
120 |
|
2.5 |
5.5 |
80 |
0.5 |
5 |
Push-Pull |
-40 to +85 |
|
5.3 |
$0.77 @1k |
| MAX988 |
1 |
Open Drain |
|
5.3 |
$0.77 @1k |
| MAX991 |
2 |
Push-Pull |
|
9 |
$1.14 @1k |
| MAX992 |
2 |
Open Drain |
|
9 |
$1.14 @1k |
| MAX995 |
4 |
Push-Pull |
|
33.4 |
$1.70 @1k |
| MAX996 |
4 |
Open Drain |
|
33.4 |
$1.70 @1k |
|
See All Comparators (80)
|
Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.
|
|
Diagram
 Typical Operating Circuit
Notes and Comments
High-Speed, micropower, low voltage, Rail-to-Rail I/O
More Information
Didn't Find What You Need?
Information Index
Document Ref.: 19-1266
Rev 2;
2007-02-15
This page last modified: 2007-06-01
|
|
|
Download
E-Mail