参数资料
| 型号： | MAX1493EVKIT+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 1/25页 |
| 文件大小： | 0K |
| 描述： | KIT EVAL FOR MAX1493 |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 1 |
| 主要目的： | 显示器，LCD 控制器 |
| 嵌入式： | 否 |
| 已用 IC / 零件： | MAX1493 |
| 主要属性： | 4.5 位数 ADC，带 LCD 驱动器 |
| 次要属性： | 2.7 V ~ 5.25 V 电源 |
| 已供物品： | 带 LCD 的板 |
19-3053; Rev 2; 5/04
ATION
EVALU
AVAIL
KIT
ABLE
3.5- and 4.5-Digit, Single-Chip
ADCs with LCD Drivers
General Description
The MAX1491/MAX1493/MAX1495 low-power, 3.5- and
4.5-digit, analog-to-digital converters (ADCs) with inte-
grated liquid crystal display (LCD) drivers operate from a
single 2.7V to 5.25V power supply. They include an inter-
nal reference, a high-accuracy on-chip oscillator, and a
triplexed LCD driver. An internal charge pump generates
the negative supply needed to power the integrated input
buffer for single supply operation. The ADC is config-
urable for either a ±2V or ±200mV input range and it out-
puts its conversion results to an LCD. The MAX1491 is a
3.5-digit (±1999 count) device, and the MAX1493/
MAX1495 are 4.5-digit (±19,999 count) devices.
The MAX1491/MAX1493/MAX1495 do not require exter-
nal-precision integrating or auto-zero capacitors, crystal
oscillators, charge pumps, or other circuitry required
with dual slope ADCs (commonly used in panel meter
circuits). These devices also feature on-chip buffers for
the differential signal and reference inputs, allowing
direct interface with high-impedance signal sources. In
addition, the MAX1491/MAX1493/MAX1495 use continu-
ous internal offset calibration, and offer >100dB rejec-
tion of 50Hz and 60Hz line noise. The MAX1493/
MAX1495 perform enhanced offset calibration at power-
up. The MAX1495 also performs enhanced calibration
on demand. Other features include data hold and peak
hold, and a user programmable low-battery monitor.
The MAX1493/MAX1495 come in a 32-pin 7mm ? 7mm
TQFP package, and the MAX1491 comes in 28-pin
SSOP and 28-pin DIP packages. All devices in this fam-
ily operate over the 0°C to +70°C commercial tempera-
ture range.
Features
? High Resolution
MAX1495: 4.5 Digits (±19,999 Count)
MAX1493: 4.5 Digits (±19,999 Count)
MAX1491: 3.5 Digits (±1999 Count)
? Sigma-Delta ADC Architecture
No Integrating Capacitors Required
No Autozeroing Capacitors Required
>100dB of Simultaneous 50Hz and 60Hz Rejection
? Operate from a Single 2.7V or 5.25V Supply
? Selectable Input Range of ±200mV or ±2V
? Selectable Voltage Reference: Internal 2.048V or
External
? Internal High-Accuracy Oscillator Needs No
External Components
? Automatic Offset Calibration
? Low Power: Maximum 980μA Operating Current
? Small 32-Pin 7mm ? 7mm TQFP Package (4.5
Digits), 28-Pin SSOP Package (3.5 Digits), and 28-
Pin DIP Package (3.5 Digits)
? Triplexed LCD Driver
? Evaluation Kit Available (Order MAX1494EVKIT)
Pin Configurations
TOP VIEW
Applications
32
31
30
29
28
27
26
25
Digital Panel Meters
Hand-Held Meters
Digital Voltmeters
AV DD
AIN+
AIN-
1
2
3
24 SEG13
23 SEG12
22 SEG11
Digital Multimeters
Ordering Information
REF-
REF+
LOWBATT
RANGE
4
5
6
7
MAX1493
MAX1495
21 SEG10
20 SEG9
19 SEG8
18 SEG7
PART
TEMP
RANGE
PIN-
PACKAGE
RESOLUTION
(DIGITS)
DPSET1
8
17 SEG6
MAX1491 CAI
0 ° C to +70 ° C 28 SSOP
3.5
9
10
11
12
13
14
15
16
MAX1491CNI
MAX1493 CCJ
0 ° C to +70 ° C 28 DIP
0 ° C to +70 ° C 32 TQFP
3.5
4.5
MAX1495 CCJ
0 ° C to +70 ° C 32 TQFP
4.5
TQFP
Pin Configurations continued at end of data sheet.
________________________________________________________________ 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.
1
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX1493EVKIT+ | 功能描述:数据转换 IC 开发工具 MAX1493 Eval Kit RoHS:否 制造商:Texas Instruments 产品:Demonstration Kits 类型:ADC 工具用于评估:ADS130E08 接口类型:SPI 工作电源电压:- 6 V to + 6 V |
| MAX1494CCJ | 功能描述:模数转换器 - ADC RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
| MAX1494CCJ+ | 功能描述:模数转换器 - ADC 4.5 Digit ADC w/LCD Drivers RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
| MAX1494CCJ+T | 功能描述:模数转换器 - ADC 4.5 Digit ADC w/LCD Drivers RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
| MAX1494CCJ-T | 功能描述:模数转换器 - ADC RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
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