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MAX907, MAX908, MAX909
Dual/Quad/Single, High-Speed, Ultra-Low-Power, Single-Supply TTL Comparators
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Status
| Part Number |
Status |
Replacement |
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MAX907
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Active: In Production. | |
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MAX908
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Active: In Production. | |
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MAX909
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This product is No Longer Available. See Ordering Information for recommended replacements. | MAX9109
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Description
The MAX907/MAX908/MAX909 are dual/quad/single,
high-speed, ultra-low-power voltage comparators
designed for use in systems powered from a single
+5V supply; the MAX909 also accepts dual ±5V supplies.
Their 40ns propagation delay (with 5mV input
overdrive) is achieved with a power consumption of
only 3.5mW per comparator. The wide input common-mode
range extends from 200mV below ground (below
the negative supply rail for the MAX909) to within 1.5V
of the positive supply rail.
Because they are micropower, high-speed comparators
that operate from a single +5V supply and include
built-in hysteresis, these devices replace a variety of
older comparators in a wide range of applications.
MAX907/MAX908/MAX909 outputs are TTL-compatible,
requiring no external pullup circuitry. All inputs and outputs
can be continuously shorted to either supply rail
without damage. These easy-to-use comparators incorporate
internal hysteresis to ensure clean output switching
even when the devices are driven by a slow-moving
input signal.
The MAX909 features complementary outputs and an
output latch. A separate supply pin for extending the
analog input range down to -5V is also provided.
The dual MAX907 and single MAX909 are available in
8-pin DIP and SO packages, and the quad MAX908 is
available in 14-pin DIP and SO packages. These comparators
are ideal for single +5V-supply applications
that require the combination of high speed, precision,
and ultra-low power dissipation.
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Data Sheet
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Key Features
- 40ns Propagation Delay
- 700µA (3.5mW) Supply Current per Comparator
- Single 4.5V to 5.5V Supply Operation
(or ±5V, MAX909 only)
- Wide Input Range Includes Ground
(or -5V, MAX909 only)
- Low, 500µV Offset Voltage
- Internal Hysteresis Provides Clean Switching
- TTL-Compatible Outputs
(Complementary on MAX909)
- Input and Output Short-Circuit Protection
- Internal Latch (MAX909 only)
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Applications/Uses
- Battery-Powered Systems
- High-Speed A/D Converters
- High-Speed Sampling Circuits
- High-Speed V/F Converters
- Line Receivers
- Threshold Detectors/Discriminators
- Zero-Crossing Detectors
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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 |
| MAX907 |
2 |
40 |
to Neg. Rail |
4.5 |
11 |
1000 |
0.5 |
2 |
Push-Pull |
| -55 to +125 | | -40 to +85 | | 0 to +70 |
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30.9 |
$1.89 @1k |
| MAX908 |
4 |
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54.2 |
$3.29 @1k |
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See All Comparators (80)
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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.
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Diagram
Pin Configuration
Pin Configuration
Notes and Comments
High speed, ultra-low power, single +5V, built-in hysteresis (MAX907)
High speed, ultra-low power, single +5V, built-in hysteresis (MAX908)
High speed, low power, single or dual supply, input range includes ground, complementary outputs (MAX909)
Didn't Find What You Need?
Information Index
Document Ref.: 19-0129
Rev 7;
2006-02-24
This page last modified: 2009-11-10
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