Comparators

What is a Comparator?

A Comparator is a circuit which accepts two voltages or currents and then switches the output showing which is bigger. Comparators are found in components like analogue to digital converters. Comparators are like operational amplifiers except a comparator is designed to operate with positive feedback and output saturated at one power rail or the other.

How a Comparator works.
A comparator samples two input pins and turns on the output when identifying a difference or similarity.
An example is when you have a minus voltage on the inverting Pin and a plus non-inverting. When the voltage, on the non-inverting equals the inverting voltage the Pin turns on. Normally the output Pin is open and switches to ground when the comparator is activated.

Why use a Comparator?
The primary use of a comparator is converting analog to digital (ADC). Two supply voltage are applied and the difference determines a high or low digital signal.

Types of Comparator.
Current sense, Differential / Dual differential, Dual / Dual CMOS, Dual voltage / General voltage, General purpose, Ground sense, High speed / high-speed CMOS, Low current CMOS, Low power / low voltage / low-power CMOS, Micro power, Nano power, Precision, Push/pull output, Quad differential, Rail to rail, Voltage, Window.

Mounting Types.
Surface mount
Through hole
Comparator power supply types.
Dual
Single

Various package types, pins, sizes, channels per chip, PSRR (power supply rejection ratio), CMRR (common mode rejection ratio) are all available.

...
顯示內容 隱藏內容

篩選條件

正在檢視 141 - 160,共 1136 項產品
Results per page
Description Price Comparator Type Mounting Type Package Type Power Supply Type Output Type Number of Channels per Chip Typical Response Time Pin Count Typical Single Supply Voltage Dimensions Length Width Height Typical CMRR
RS庫存編號 189-1848
製造零件編號LM2901YDT
HK$2,950.00
毎卷:2500 個
Reel(s)
Low Power Surface Mount SO Dual, Single CMOS, DTL, ECL, MOS, TTL 4 1.3µs 14 2 → 32 V 8.75 x 4 x 1.65mm 8.75mm 4mm 1.65mm -
RS庫存編號 191-3328
製造零件編號MAX9034AUD+T
HK$7.941
個 (在毎卷:2500)
單位
Low Power, Micro Power Comparator Surface Mount TSSOP Single Rail to Rail - - 14 2.5 → 5.5 V 5.1 x 4.5 x 0.95mm 5.1mm 4.5mm 0.95mm 100dB
RS庫存編號 189-8796
製造零件編號MAX919EUK+T
HK$10.575
/個 (每包:10個)
單位
Low Voltage Surface Mount SOT-23 Single Push-Pull 1 6µs 5 1.8 → 5.5 V 3 x 1.75 x 1.3mm 3mm 1.75mm 1.3mm 0.5mV/V
RS庫存編號 661-2680
製造零件編號TLC3704IDR
HK$14.03
/個 (每包:5個)
單位
Low Power Surface Mount SOIC Single Push-Pull 4 2.7µs 14 5 V 8.65 x 3.91 x 1.58mm 8.65mm 3.91mm 1.58mm 84dB
RS庫存編號 189-9150
製造零件編號MAX9140EXK+T
HK$12.782
/個 (每包:5個)
單位
Low Power Surface Mount SC-70 Single Push-Pull 1 40ns 5 2.7 → 5.5 V 2.2 x 1.35 x 1mm 2.2mm 1.35mm 1mm 80µV/V
RS庫存編號 923-5753
製造零件編號MAX942ESA+
HK$28.294
毎管:100 個
單位
General Purpose Surface Mount SOIC Single Push-Pull 2 - 8 2.7 → 5.5 V 5 x 4 x 1.5mm 5mm 4mm 1.5mm 80µV/V
RS庫存編號 146-1240
製造零件編號MAX9202EUD+
HK$31.374
毎管:96 個
單位
High Speed, Low Power Surface Mount TSSOP Dual, Single Push-Pull 2 ±0.007µs 14 4.75 → 10.5 V 5.1 x 4.5 x 0.95mm 5.1mm 4.5mm 0.95mm 50µV/V
RS庫存編號 162-5384
製造零件編號LM339ADR
HK$0.813
個 (在毎卷:2500)
單位
General Purpose Surface Mount SOIC Dual, Single Open Collector 4 1.3µs 14 3 → 28 V 8.65 x 3.91 x 1.58mm 8.65mm 3.91mm 1.58mm -
RS庫存編號 184-8640
製造零件編號BA82901YF-CE2
BrandROHM
HK$11.89
/個 (每包:10個)
單位
- Surface Mount SOP Single - 3 1.3µs 8 2 → 36 V 5 x 4.4 x 1.5mm 5mm 4.4mm 1.5mm -
RS庫存編號 912-7404
製造零件編號AD8561ARZ
HK$29.44
毎管:98 個
單位
General Purpose Surface Mount SOIC Dual, Single Complementary 1 - 8 5 V, 9 V 5 x 4 x 1.5mm 5mm 4mm 1.5mm 85dB
RS庫存編號 356-9732
製造零件編號TLC3704ID
HK$14.89
單位
Low Power Surface Mount SOIC Single Push-Pull 4 2.7µs 14 5 V 8.65 x 3.91 x 1.58mm 8.65mm 3.91mm 1.58mm 84dB
RS庫存編號 517-1882
製造零件編號LM339AD
HK$2.802
/個 (每包:20個)
單位
General Purpose Surface Mount SOIC Dual, Single Open Collector 4 1.3µs 14 3 → 28 V 8.65 x 3.91 x 1.58mm 8.65mm 3.91mm 1.58mm -
RS庫存編號 900-9879
製造零件編號TLV1701AIDBVT
HK$10.87
/個 (每包:5個)
單位
Low Power Surface Mount SOT-23 Dual, Single Open Collector 1 - 5 2.2 → 36 V 3.05 x 1.75 x 1.3mm 3.05mm 1.75mm 1.3mm -
RS庫存編號 165-7774
製造零件編號LM339ADT
HK$1.03
個 (在毎卷:2500)
單位
General Purpose Surface Mount SOIC Dual, Single CMOS, DL, ECL, MOS, TTL 4 1.3µs 14 2 → 36 V 8.75 x 4 x 1.65mm 8.75mm 4mm 1.65mm -
RS庫存編號 759-1556
製造零件編號ADCMP608BKSZ-REEL7
HK$15.49
/個 (每包:5個)
單位
High Speed Surface Mount SC-70 Single CMOS, TTL 1 0.035 → 0.06µs 6 2.5 → 5.5 V 2.2 x 1.35 x 1mm 2.2mm 1.35mm 1mm 45dB
RS庫存編號 190-6667
製造零件編號MAX991ESA+
HK$26.22
/個 (每包:5個)
單位
High Speed, Micro Power Comparator Surface Mount SO Dual, Single Push-Pull 1 - 8 2.5 → 5.5 V 5 x 4 x 1.5mm 5mm 4mm 1.5mm 80dB
RS庫存編號 661-2586
製造零件編號LM2901AVQDRG4
HK$4.449
/個 (每包:10個)
單位
Differential Surface Mount SOIC Dual, Single Open Collector 4 1.3µs 14 3 → 28 V 8.65 x 3.91 x 1.58mm 8.65mm 3.91mm 1.58mm -
RS庫存編號 161-0616
製造零件編號AD8612ARUZ
HK$53.91
毎管:96 個
單位
General Purpose Surface Mount TSSOP Single Complementary 2 - 14 - 5 x 4.4 x 1mm 5mm 4.4mm 1mm 85dB
RS庫存編號 168-4159
製造零件編號ADCMP582BCPZ-WP
HK$134.60
Each (In a Tray of 50)
單位
High Speed Surface Mount LFCSP VQ Dual PECL 1 0.00018µs 16 - 3 x 3 x 0.85mm 3mm 3mm 0.85mm 60dB
RS庫存編號 145-5762
製造零件編號TLC372IP
HK$9.33
毎管:50 個
單位
General Purpose Through Hole PDIP Dual, Single Open Drain 2 0.65µs 8 5 → 15 V 9.81 x 6.35 x 4.57mm 9.81mm 6.35mm 4.57mm -