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 101 - 120,共 1096 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 787-8816
製造零件編號NCS2202SQ2T2G
HK$5.00
Each (On a Tape of 10)
單位
Low Power Surface Mount SC-70 Single Open Drain 1 35µs 5 0.85 → 6 V 2.2 x 1.35 x 1mm 2.2mm 1.35mm 1mm 65dB
RS庫存編號 189-1843
製造零件編號LM239APT
HK$3,503.50
毎卷:2500 個
Reel(s)
Low Power Surface Mount TSSOP Dual, Single CMOS, DTL, ECL, MOS, TTL 4 1.3µs 14 2 → 32 V 5.1 x 4.5 x 1.05mm 5.1mm 4.5mm 1.05mm -
RS庫存編號 165-5280
製造零件編號TS331ICT
HK$3.12
個 (在毎卷:3000)
單位
Low Voltage Surface Mount SC-70 Single Open Drain 1 - 5 1.6 → 5 V 2.2 x 1.35 x 1mm 2.2mm 1.35mm 1mm 74dB
RS庫存編號 768-1378
製造零件編號MCP6546UT-E/OT
BrandMicrochip
HK$3.08
/個 (每包:10個)
單位
General Purpose Surface Mount SOT-23 Single Open Drain 1 - 5 1.6 → 5.5 V 3.1 x 1.8 x 1.3mm 3.1mm 1.8mm 1.3mm 70dB
RS庫存編號 145-3569
製造零件編號LM2901VDTBR2G
HK$1.41
個 (在毎卷:2500)
單位
General Purpose Surface Mount TSSOP Dual, Single CMOS, TTL 4 1.3µs 14 3 → 36 V 5.1 x 4.5 x 1.05mm 5.1mm 4.5mm 1.05mm -
RS庫存編號 169-5572
製造零件編號LM239ADR
HK$0.898
個 (在毎卷:2500)
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 190-6604
製造零件編號MAX9109ESA+
HK$12.471
/個 (每包:10個)
單位
Low Power Surface Mount SO Single - 1 - 8 4.5 → 5.5 V 5 x 4 x 1.5mm 5mm 4mm 1.5mm 50µV/V
RS庫存編號 190-4366
製造零件編號MAX921CSA+
HK$31.025
毎管:100 個
單位
Ultralow Power Surface Mount SO Dual, Single - 1 14µs 8 2.5 → 11 V 5 x 4 x 1.5mm 5mm 4mm 1.5mm 0.2mV/V
RS庫存編號 165-4292
製造零件編號MIC841HYC5-TR
BrandMicrochip
HK$3.654
個 (在毎卷:3000)
單位
Dual Surface Mount SC-70 Single Open Drain, Push-Pull 2 12µs 5 1.5 → 5.5 V 1.8 x 1.15 x 0.8mm 1.8mm 1.15mm 0.8mm -
RS庫存編號 165-6616
製造零件編號TS3011ICT
HK$3.461
個 (在毎卷:3000)
單位
High Speed Surface Mount SC-70 Single Push-Pull 1 8ns 5 2.2 → 5 V 2.2 x 1.35 x 1mm 2.2mm 1.35mm 1mm 74dB
RS庫存編號 165-3418
製造零件編號MCP6566T-E/OT
BrandMicrochip
HK$3.38
個 (在毎卷:3000)
單位
General Purpose Surface Mount SOT-23 Single Open Drain 1 - 5 3 V, 5 V 3.1 x 1.8 x 1.3mm 3.1mm 1.8mm 1.3mm 66dB
RS庫存編號 179-1620
製造零件編號LM293DR
HK$1.563
毎管:75 個
單位
Differential 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 714-0745
製造零件編號LM2901DT
HK$2.34
/個 (每包:20個)
單位
General Purpose Surface Mount SOIC Dual, Single Open Collector 4 1.3µs 14 3 → 28 V 8.75 x 4 x 1.65mm 8.75mm 4mm 1.65mm -
RS庫存編號 179-1628
製造零件編號TLC3702ID
HK$12.722
毎管:75 個
單位
Low Power Surface Mount SOIC Single Push-Pull 2 - 8 5 V 4.9 x 3.91 x 1.58mm 4.9mm 3.91mm 1.58mm 84dB
RS庫存編號 401-2215
製造零件編號BA10339
BrandROHM
HK$7.62
/個 (每包:5個)
單位
General Purpose Through Hole PDIP Dual, Single Open Collector 4 1.3µs 14 5 → 28 V 19.4 x 6.5 x 3.44mm 19.4mm 6.5mm 3.44mm -
RS庫存編號 761-8361
製造零件編號LT1671CS8#PBF
HK$35.20
單位
High Speed Surface Mount SOIC Dual, Single TTL 1 - 8 5 V 5.004 x 3.988 x 1.498mm 5mm 3.988mm 1.498mm 100dB
RS庫存編號 171-5755
製造零件編號LM339FV-E2
BrandROHM
HK$3.17
個 (在毎卷:2500)
單位
- Surface Mount SSOP-B Dual, Single Open Collector 4 1µs 14 3 → 32 V 3 x 4.4 x 1.15mm 3mm 4.4mm 1.15mm -
RS庫存編號 162-5577
製造零件編號TLC393IPWR
HK$4.857
個 (在毎卷:2000)
單位
Low Power Surface Mount TSSOP Single Open Drain 2 - 8 5 V 3 x 4.4 x 1.15mm 3mm 4.4mm 1.15mm 84dB
RS庫存編號 822-5998
製造零件編號LT6700CS6-2#TRMPBF
HK$24.184
/個 (每包:5個)
單位
Low Voltage Surface Mount TSOT-23 Single Open Collector 2 2.2µs 6 1.4 → 18 V 2.9 x 1.5 x 0.9mm 2.9mm 1.5mm 0.9mm -
RS庫存編號 189-7294
製造零件編號MAX964EEE+
HK$53.643
毎管:100 個
單位
High Speed, Low Power Surface Mount QSOP Single CMOS, TTL 4 - 16 +5 V 4.98 x 3.99 x 1.49mm 4.98mm 3.99mm 1.49mm 1.0mV/V