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 121 - 140,共 1295 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 671-0258
製造零件編號KA2803B
HK$3.772
/個 (每包:5個)
單位
General Purpose Through Hole PDIP - - - - 8 - 10.15 x 6.35 x 3.3mm 10.15mm 6.35mm 3.3mm -
RS庫存編號 709-7382
製造零件編號AD96685BRZ
HK$51.26
單位
General Purpose Surface Mount SOIC Dual Complementary 1 - 16 - 10 x 4 x 1.5mm 10mm 4mm 1.5mm 90dB
全新
RS庫存編號 189-7351
製造零件編號MAX931ESA+
BrandMaxim
HK$23.728
毎管:100 個
單位
Low Power Surface Mount SOIC Dual, Single - 1 12µs 8 3 → 9 V 5 x 4 x 1.5mm 5mm 4mm 1.5mm 80dB
RS庫存編號 175-1627
製造零件編號TLV7031DPWR
HK$1.738
個 (在毎卷:3000)
單位
Low Voltage Surface Mount X2SON Single Push-Pull 1 - 5 1.6 → 6.5 V 0.85 x 0.85 x 0.35mm 0.85mm 0.85mm 0.35mm 73dB
全新
RS庫存編號 190-6577
製造零件編號MAX9012ESA+
BrandMaxim
HK$23.126
/個 (每包:5個)
單位
Low Power Surface Mount SO Single TTL 2 - 8 4.5 → 5.5 V 5 x 4 x 1.5mm 5mm 4mm 1.5mm 95dB
RS庫存編號 171-6303
製造零件編號BU7252F-E2
BrandROHM
HK$3.545
/個 (每包:10個)
單位
High Speed CMOS Surface Mount SOP Dual, Single Push-Pull 2 0.55µs 8 1.8 → 5.5 V 5 x 4.4 x 1.5mm 5mm 4.4mm 1.5mm 80dB
RS庫存編號 179-1746
製造零件編號LM393AD
HK$2.192
毎管:75 個
單位
General Purpose Surface Mount SOIC Dual, Single Open Collector 2 1.3µs 8 3 → 28 V 4.9 x 3.91 x 1.58mm 4.9mm 3.91mm 1.58mm -
RS庫存編號 921-0736
製造零件編號LMV393S-13
HK$2.161
/個 (每包:50個)
單位
General Purpose Surface Mount SOIC Single Open Collector 2 - 8 2.7 → 5.5 V - - - - -
RS庫存編號 145-7222
製造零件編號LT1720CMS8#PBF
HK$39.942
毎管:50 個
單位
High Speed Surface Mount MSOP Single Rail to Rail 2 2.5ns 8 2.7 → 6 V 3 x 3 x 0.9984mm 3mm 3mm 0.998mm 70dB
RS庫存編號 168-6808
製造零件編號LM311D
HK$0.875
毎管:100 個
單位
General Purpose Surface Mount SOIC Dual, Single Open Collector 1 0.2µs 8 9 → 28 V 5 x 4 x 1.25mm 5mm 4mm 1.25mm -
RS庫存編號 527-192
製造零件編號LM339PWRG4
HK$1.26
/個 (每包:25個)
單位
General Purpose Surface Mount TSSOP Dual, Single Open Collector 4 1.3µs 14 3 → 28 V 5 x 4.4 x 1.15mm 5mm 4.4mm 1.15mm -
全新
RS庫存編號 189-1952
製造零件編號LM2903Q2T
HK$2.759
/個 (每包:50個)
單位
Low Power Surface Mount DFN Dual, Single CMOS, DTL, ECL, MOS, TTL 2 1.3µs 8 2 → 36 V 2.05 x 2.05 x 0.7mm 2.05mm 2.05mm 0.7mm -
RS庫存編號 171-6229
製造零件編號BU7250G-TR
BrandROHM
HK$2.957
/個 (每包:20個)
單位
Low Current CMOS Surface Mount SSOP Dual, Single Open Drain 1 0.75µs 5 1.8 → 5.5 V 2.9 x 1.6 x 1.1mm 2.9mm 1.6mm 1.1mm 80dB
RS庫存編號 145-6595
製造零件編號LM319AM/NOPB
HK$8.59
毎管:55 個
單位
High Speed Surface Mount SOIC Dual DTL, RTL, TTL 2 80µs 14 - 8.738 x 3.988 x 1.499mm 8.74mm 3.99mm 1.5mm -
全新
RS庫存編號 189-8855
製造零件編號MAX942EUA+
BrandMaxim
HK$33.096
/個 (每包:5個)
單位
General Purpose Surface Mount μMAX Single - 2 - 8 3 V, 5 V 3.05 x 3.05 x 0.95mm 3.05mm 3.05mm 0.95mm 81.94dB
RS庫存編號 759-1544
製造零件編號ADCMP572BCPZ-R2
HK$154.35
單位
High Speed Surface Mount LFCSP VQ Single CML 1 0.000165µs 16 3.3 → 5.2 V 3 x 3 x 0.95mm 3mm 3mm 0.95mm 65dB
全新
RS庫存編號 189-9079
製造零件編號MAX921ESA+
BrandMaxim
HK$34.302
/個 (每包:5個)
單位
General Purpose Surface Mount SOIC Dual, Single Push-Pull 1 12µs 8 2.5 → 11 V 5 x 4 x 1.5mm 5mm 4mm 1.5mm 0.2mV/V
RS庫存編號 165-9101
製造零件編號MAX932ESA+
BrandMaxim
HK$39.236
毎管:100 個
單位
Low Power Surface Mount SOIC Dual, Single - 2 12µs 8 3 → 9 V 5 x 4 x 1.5mm 5mm 4mm 1.5mm 80dB
RS庫存編號 876-7186
製造零件編號MCP6541-I/P
BrandMicrochip
HK$3.121
毎管:60 個
單位
Low Power Through Hole PDIP Single Push-Pull 1 - 8 1.6 → 5.5 V 10.16 x 7.11 x 5.33mm 10.16mm 7.11mm 5.33mm 70dB
RS庫存編號 162-4222
製造零件編號LMP7300MA/NOPB
HK$19.039
毎管:95 個
單位
Low Power Surface Mount SOIC Dual, Single Open Collector 1 - 8 3 → 9 V 4.9 x 3.9 x 1.45mm 4.9mm 3.9mm 1.45mm 100dB