Datasheet > MAX1496

MAX1496

更新时间： 2024-11-16 14:57:55

品牌	Logo	应用领域
亚德诺 - ADI		驱动驱动器
页数	文件大小	规格书
24页	907K
描述
3位半和4位半、单片ADC，带有LED驱动器

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数据手册

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MAX1496 数据手册

19-3166; Rev 0; 1/04

3.5- and 4.5-Digit, Single-Chip ADCs

with LED Drivers

General Description

Features

The MAX1447/MAX1496/MAX1498 low-power, 3.5- and

4.5-digit, analog-to-digital converters (ADCs) with inte-

grated light-emitting diode (LED) drivers operate from a

single 2.7V to 5.25V power supply. They include an

internal reference, a high-accuracy on-chip oscillator,

and a multiplexed LED display driver. An internal charge

pump generates the negative supply needed to power

the integrated input buffers for single-supply operation.

The ADC is configurable for either a ±2V or ±2±±mV

input range and it outputs its conversion results to an

LED. The MAX1496 is a 3.5-digit (±1999 count) device

and the MAX1447/MAX1498 are 4.5-digit (±19,999

count) devices.

♦ High Resolution

MAX1447/MAX1498: 4.5 Digits (±19ꢀ999 ꢁountꢂ

MAX1496: 3.5 Digits (±1999 ꢁountꢂ

♦ Sigma-Delta ADꢁ Architecture

No Integrating ꢁapacitors Required

No Autozeroing ꢁapacitors Required

>100dB of Simultaneous 50Hz and 60Hz

Rejection

♦ Selectable Input Range of ±±00mꢃ or ±±ꢃ

♦ Selectable ꢃoltage Reference: Internal ±.048ꢃ or

External

♦ Internal High-Accuracy Oscillator Needs No

The MAX1447/MAX1496/MAX1498 do not require exter-

nal precision integrating capacitors, autozero capaci-

tors, crystal oscillators, charge pumps, or other circuitry

required with dual-slope ADCs (commonly used in

panel meter circuits).

External ꢁomponents

♦ Automatic Offset ꢁalibration

♦ On-Demand Enhanced Offset ꢁalibration

(MAX1447ꢂ

♦ Operate from a Single ±.7ꢃ to 5.±5ꢃ Supply

These devices also feature on-chip buffers for the dif-

ferential signal and reference input, allowing direct

interface with high-impedance signal sources. In addi-

tion, they use continuous internal offset-calibration and

offer >1±±dB rejection of 5±Hz and 6±Hz line noise.

Other features include data hold and peak detection

and overrange/underrange detection. The MAX1447

features on-demand enhanced offset calibration for

improved offset performance.

♦ Low Power (Exclude LED-Driver ꢁurrentꢂ

Maximum 744µA Operating ꢁurrent (MAX1496ꢂ

Maximum 960µA Operating ꢁurrent

(MAX1447/MAX1498ꢂ

Maximum 3±5µA Shutdown ꢁurrent

♦ Multiplexed ꢁommon-ꢁathode LED Drivers

Resistor-Programmable Segment ꢁurrent

♦ Small 3±-Pinꢀ 7mm x 7mm TQFP Package (4.5

The MAX1447/MAX1498 are available in a 32-pin, 7mm

✕ 7mm TQFP package and the MAX1496 is available in

28-pin SSOP and 28-pin PDIP packages. All devices in

this family operate over the -4±°C to +85°C extended

temperature range.

Digitsꢂꢀ ±8-Pin SSOP Package (3.5 Digitsꢂ

♦ Also Available in a PDIP Package (3.5 Digitsꢂ

Applications

Digital Panel Meters

Ordering Information

PIN-

RESOLUTION

(DIGITSꢂ

PART

TEMP RANGE

Hand-Held Meters

PAꢁKAGE

Digital Voltmeters

MAX1447ECJ -4±°C to +85°C 32 TQFP

MAX1496EAI* -4±°C to +85°C 28 SSOP

4.5

3.5

4.5

Digital Multimeters

MAX1496EPI

-4±°C to +85°C 28 PDIP

Pin Configurations appear at end of data sheet.

MAX1498ECJ -4±°C to +85°C 32 TQFP

*Future product—contact factory for availability.

________________________________________________________________ Maxim Integrated Products

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.

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与MAX1496相关器件

型号	品牌	获取价格	描述	数据表
MAX1496EAI	MAXIM	获取价格	3.5- and 4.5-Digit, Single-Chip ADCs with LED Drivers
MAX1496EPI	MAXIM	获取价格	3.5- and 4.5-Digit, Single-Chip ADCs with LED Drivers
MAX1496EPI+	MAXIM	获取价格	ADC, Proprietary Method, 1 Func, 1 Channel, BICMOS, PDIP28, 0.600 MM, PLASTIC, MS-011, DIP
MAX1497	MAXIM	获取价格	3.5- and 4.5-Digit, Single-Chip ADCs with LED
MAX1497\|MAX1499	MAXIM	获取价格	3.5- and 4.5-Digit. Single-Chip ADCs with LED
MAX14970	ADI	获取价格	高度可靠的6Gbps SATA转接驱动器，具有高ESD保护和扩展级温度范围
MAX14970ETP+	MAXIM	获取价格	Analog Circuit, 1 Func, BICMOS, ROHS COMPLIANT, TQFN-20
MAX14972	MAXIM	获取价格	Dual SuperSpeed USB 3.0 Equalizer/Redriver
MAX14972CTG	MAXIM	获取价格	Dual SuperSpeed USB 3.0 Equalizer/Redriver
MAX14972CTG+	MAXIM	获取价格	Dual SuperSpeed USB 3.0 Equalizer/Redriver

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