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MAX6164AESA+T中文资料

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General Description

The MAX6161–MAX6168 are precision, low-dropout,

micropower voltage references. These three-terminal

devices operate with an input voltage range from (V

OUT

+ 200mV) to 12.6V and are available with output volt-

age options of 1.25V, 1.8V, 2.048V, 2.5V, 3V, 4.096V,

4.5V, and 5V. They feature a proprietary curvature-cor-

rection circuit and laser-trimmed thin-film resistors that

result in a very low temperature coefficient of 5ppm/°C

(max) and an initial accuracy of ±2mV (max).

Specifications apply to the extended temperature range

(-40°C to +85°C).

The MAX6161–MAX6168 typically draw only 100µA of

supply current and can source 5mA (4mA for

MAX6161) or sink 2mA of load current. Unlike conven-

tional shunt-mode (two-terminal) references that waste

supply current and require an external resistor, these

devices offer a supply current that is virtually indepen-

dent of the supply voltage (8µA/V variation) and do not

require an external resistor. Additionally, the internally

compensated devices do not require an external com-

pensation capacitor. Eliminating the external compen-

sation capacitor saves valuable board area in

space-critical applications. A low-dropout voltage and

a supply-independent, ultra-low supply current make

these devices ideal for battery-operated, high-perfor-

mance, low-voltage systems.

The MAX6161–MAX6168 are available in 8-pin SO

packages.

________________________Applications

Analog-to-Digital Converters (ADCs)

Portable Battery-Powered Systems

Notebook Computers

PDAs, GPS, DMMs

Cellular Phones

Precision +3V/+5V Systems____________________________Features

♦±2mV (max) Initial Accuracy

♦5ppm/°C (max) Temperature Coefficient

♦5mA Source Current at 0.9mV/mA

♦2mA Sink Current at 2.5mV/mA

♦Stable with 1µF Capacitive Loads

♦No External Capacitor Required

♦100µA (typ) Quiescent Supply Current

♦200mV (max) Dropout at 1mA Load Current

♦Output Voltage Options: 1.25V, 1.8V, 2.048V, 2.5V,

3V, 4.096V, 4.5V, 5V19-1650; Rev 3; 8/05

MAX6161–MAX6168Precision, Micropower, Low-Dropout, High-

Output-Current, SO-8 Voltage References

________________________________________________________________Maxim Integrated Products

1

OUT

N.C.GND1

28

7N.C.

N.C.IN

N.C.N.C.

SOTOP VIEW

3

46

5MAX6161–

MAX6168 ___________________Pin Configuration*Insert the code for the desired initial accuracy and temperature

coefficient (from the Selector Guide) in the blank to complete

the part number.

Typical Operating Circuit and Selector Guide appear at end

of data sheet.

PART*

TEMP RANGEPIN-

PACKAGEOUTPUT

VOLTAGE

(V)

MAX6161_ESA-40°C to +85°C8 SO1.250

MAX6162_ESA-40°C to +85°C8 SO2.048

MAX6163_ESA-40°C to +85°C8 SO3.000

MAX6164_ESA-40°C to +85°C8 SO4.096

MAX6165_ESA-40°C to +85°C8 SO5.000

MAX6166_ESA-40°C to +85°C8 SO2.500

MAX6167_ESA-40°C to +85°C8 SO4.500

MAX6168_ESA-40°C to +85°C8 SO1.800Ordering Information

For pricing, delivery, and ordering information,please contact Maxim/Dallas Direct!at

1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.元器件交易网www.cecb2b.com

MAX6161–MAX6168Precision, Micropower, Low-Dropout, High-

Output-Current, SO-8 Voltage References

2

_______________________________________________________________________________________ABSOLUTE MAXIMUM RATINGS

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional

operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to

absolute maximum rating conditions for extended periods may affect device reliability.Voltages Referenced to GND

IN …………............................................................-0.3 to +13.5V

OUT………………........................................-0.3V to (V

IN+ 0.3V)

Output Short-Circuit Duration to GND or IN (V

IN≤6V)...Continuous

Output Short-Circuit Duration to GND or IN (V

IN> 6V)…...........60sContinuous Power Dissipation (T

A= +70°C)

8-Pin SO (derate 5.88mW/°C above +70°C)...............471mW

Operating Temperature Range...........................-40°C to +85°C

Storage Temperature Range………….…………-65°C to +150°C

Lead Temperature (soldering, 10s)……………………….+300°C

ELECTRICAL CHARACTERISTICS—MAX6161 (V

OUT= 1.25V)(V

IN= +5V, I

OUT= 0, T

A= T

MINto T

MAX, unless otherwise specified. Typical values are at T

A= +25°C.) (Note 1)

PARAMETERSYMBOLCONDITIONSMINTYPMAXUNITS

MAX6161A1.2481.2501.252

Output VoltageV

OUTT

A = +25°C

MAX6161B1.2461.2501.254V

MAX6161A410Output Voltage Temperature

Coefficient (Note 2)TCV

OUT

MAX6161B615ppm/°C

Line RegulationΔV

OUT/

ΔV

IN2.5V < V

IN < 12.6V12150µV/V

Sourcing: 0 < I

OUT < 4mA0.50.9

Load RegulationΔV

OUT/

ΔI

OUTSinking: -2mA < I

OUT

< 01.32.5mV/mA

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美信芯片中文数据资料

美信芯片中文数据资料

型号 说明：

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71M6543F, 71M6543G, 71M6543GH, 71M6543H电表IC

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DS1683带报警功能的历时和事件记录器

DS184276V、APD偏置输出级，提供电流监测

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max3485esa中文资料

max3485esa中文资料

General Description

The MAX3483, MAX3485, MAX3486, MAX3488, MAX3490, and MAX3491 are 3.3V, low-power transceivers for RS-485 and RS-422 communication. Each part contains one driver and one receiver. The MAX3483 and MAX3488 feature slew-rate-limited drivers that minimize EMI and reduce reflections caused by improperly terminated cables, allowing error-free data transmission at data rates up to 250kbps. The partially slew-rate-limited MAX3486 transmits up to 2.5Mbps. The MAX3485, MAX3490, and MAX3491 transmit at up to 10Mbps.

Drivers are short-circuit current-limited and are protected against excessive power dissipation by thermal shutdown circuitry that places the driver outputs into a high-imped-ance state. The receiver input has a fail-safe feature that guarantees a logic-high output if both inputs are open circuit.

ES64资料

ES64资料

MANUFACTURER CATEGORY

SERIES PACKAGE VOLTAGE CLASS REV.DATE ES64 Series• Temperature Compensated Crystal Oscillator (TCXO)• Sinewave Output• 5.0V or 3.0V Supply Voltage• Four pad surface mount• Stability to 1.5ppm• Internal and or external voltage control option available

ECLIPTEK CORP. OSCILLATOR ES64 METAL 3.0V or 5.0V OS37 06/00H 1.85L 11.5W 9.6OSCILLATORES64NOTES_____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ELECTRICAL SPECIFICATIONS10.000MHz to 22.000MHz (Standard Frequencies:12.800MHz, 13.000MHz, and 14.400MHz)-30°C to 85°CSee Table 1 5.0VDC ±5% or 3.0VDC ±5%10kOhms // 10pF2.0mA Maximum±1ppm / Year Maximum±3ppm Minimum±8ppm Minimum±5ppm Minimum (Control Voltage); ±3ppm Minimum (Internal Trim)1.0Vp-p Clipped Sinewave Minimum0.7Vp-p Clipped Sinewave MinimumSee Table 1 ±0.5ppm Maximum w/ Internal Trim Only,±0.5ppm Maximum w/ Internal and External Trim,±2ppm Maximum w/ External Trim Only±0.3ppm Maximum±0.3ppm Maximum2.5VDC ±2.0VDC w/5.0VDC Supply Voltage; 1.5VDC ±1.0VDC w/3.0VDC Supply Voltage, Positive Transfer Characteristic2.5VDC ±2.0VDC w/5.0VDC Supply Voltage; 1.5VDC ±1.0VDC w/3.0VDC Supply Voltage, Positive Transfer Characteristicw/5.0VDC ±5% Supply Voltagew/3.0VDC ±5% Supply Voltagevs. Operating Temperature Range vs. Frequency Tolerance (25°C ±2°C)vs. Input Voltage (±5%)vs. Load (±1kΩ//±1pF)Frequency RangeStorage Temperature RangeOperating Temperature RangeSupply Voltage (VDD)Load Drive CapabilityInput CurrentAging (at 25ºC)Frequency Deviation OptionsInternal Trim Only (Top of Can)External Trim Only (Voltage Control)External Trim and Internal TrimOutput VoltageFrequency Stability800-ECLIPTEK for latest revision 130 Specifications subject to change without notice.元器件交易网

MEMORY存储芯片MAX3490EESA+T中文规格书

MEMORY存储芯片MAX3490EESA+T中文规格书

Figure 1. MAX3483/MAX3485/MAX3486 Pin Configuration and Typical Operating Circuit

Figure 2. MAX3488/MAX3490 Pin Configuration and Typical Operating Circuit

Figure 3. MAX3491 Pin Configuration and Typical Operating CircuitMAX3483MAX3485MAX3486TOP VIEW

NOTE: PIN LABELS Y AND Z ON TIMING, TEST, AND WAVEFORM DIAGRAMS REFER TO PINS A AND B WHEN DE IS HIGH.12348

5VCC

GND DIDEREROR

DRtRt76D

RDE

REDIROAB12348765VCCBAGND DIDERERO

DIP/SOR

DBA

MAX3488MAX3490TOP VIEW

1234RODIGND8765ABZY VCC

DIP/SOR

DRt

RtVCC56

78RO

DI

GND4GNDDI

RO3

2ABYZVCC

DR

RD1MAX3491

DIP/SO

TOP VIEW

Rt

RtDEVCC

REGNDVCCRE

GNDDERO

DI9101211BAZY5

RON.C.DI21, 836, 713, 1441234567141312111098VCCVCC

N.C.ABZYN.C.ROREDEDIGNDGNDR

DD

RDRMAX3483/MAX3485/MAX3486/MAX3488/MAX3490/MAX34913.3V-Powered, 10Mbps and Slew-Rate-LimitedTrue RS-485/RS-422 TransceiversDriver Output ProtectionExcessive output current and power dissipation caused by faults or by bus contention are prevented by two mechanisms. A foldback current limit on the output stage provides immediate protection against short circuits over the whole common-mode voltage range (see Typical Operating Characteristics). In addition, a thermal shut-down circuit forces the driver outputs into a high-impedance state if the die temperature rises excessively.Propagation DelayFigures 15–18 show the typical propagation delays. Skew time is simply the difference between the low-to-high and high-to-low propagation delay. Small driver/receiver skew times help maintain a symmetrical mark-space ratio (50% duty cycle).The receiver skew time, |tPRLH - tPRHL|, is under 10ns (20ns for the MAX3483/MAX3488). The driver skew times are 8ns for the MAX3485/MAX3490/MAX3491, 11ns for the MAX3486, and typically under 100ns for the MAX3483/MAX3488.Line Length vs. Data RateThe RS-485/RS-422 standard covers line lengths up to 4000 feet. For line lengths greater than 4000 feet, see Figure 23.Figures 19 and 20 show the system differential voltage for parts driving 4000 feet of 26AWG twisted-pair wire at 125kHz into 120Ω loads.Typical ApplicationsThe MAX3483, MAX3485, MAX3486, MAX3488, MAX3490, and MAX3491 transceivers are designed for bidirectional data communications on multipoint bus transmission lines. Figures 21 and 22 show typical net-work applications circuits. These parts can also be used as line repeaters, with cable lengths longer than 4000 feet, as shown in Figure 23.To minimize reflections, the line should be terminated at both ends in its characteristic impedance, and stub lengths off the main line should be kept as short as pos-sible. The slew-rate-limited MAX3483/MAX3488 and the partially slew-rate-limited MAX3486 are more tolerant of imperfect termination.Figure 21. MAX3483/MAX3485/MAX3486 Typical RS-485 Network