参数资料
| 型号： | AD7226KRZ |
| 厂商： | Analog Devices Inc |
| 文件页数： | 11/16页 |
| 文件大小： | 0K |
| 描述： | IC DAC 8BIT LC2MOS QUAD 20-SOIC |
| 产品培训模块： | Data Converter Fundamentals DAC Architectures |
| 标准包装： | 37 |
| 设置时间： | 4µs |
| 位数： | 8 |
| 数据接口： | 并联 |
| 转换器数目： | 4 |
| 电压电源： | 双 ± |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 20-SOIC（0.295"，7.50mm 宽） |
| 供应商设备封装： | 20-SOIC W |
| 包装： | 管件 |
| 输出数目和类型： | 4 电压，单极；4 电压，双极 |
| 采样率（每秒）： | 143k |
| 产品目录页面： | 784 (CN2011-ZH PDF) |
REV.
–4–
AD7226
PIN CONFIGURATIONS
DIP and SOIC/SSOP
TOP VIEW
(Not to Scale)
20
19
18
17
16
15
14
13
12
11
1
2
3
4
5
6
7
8
9
10
AD7226
VREF
AGND
DGND
DB7 (MSB)
DB6
A0
A1
WR
DB0(LSB)
DB5
DB4
DB3
DB2
DB1
VSS
VOUTA
VOUTBVOUTC
VOUTD
VDD
PLCC
3
2
1
20
19
9
10
11
12
13
18
17
16
15
14
4
5
6
7
8
TOP VIEW
(Not to Scale)
V REF
AGND
DGND
DB7 (MSB)
DB8
AD7226
VDD
A0
A1
WR
DB0(LSB)
DB5
DB4
DB3
DB2
DB1
V
SS
V
OUT
A
V
OUT
B
V
OUT
C
V
OUT
D
TERMINOLOGY
TOTAL UNADJUSTED ERROR
This is a comprehensive specification that includes full-scale
error, relative accuracy and zero code error. Maximum output
voltage is VREF – 1 LSB (ideal), where 1 LSB (ideal) is VREF/
256. The LSB size will vary over the VREF range. Hence the zero
code error will, relative to the LSB size, increase as VREF decreases.
Accordingly, the total unadjusted error, which includes the zero
code error, will also vary in terms of LSB’s over the VREF range.
As a result, total unadjusted error is specified for a fixed refer-
ence voltage of 10 V.
RELATIVE ACCURACY
Relative Accuracy or endpoint nonlinearity, is a measure of the
maximum deviation from a straight line passing through the
endpoints of the DAC transfer function. It is measured after
allowing for zero and full-scale error and is normally expressed
in LSB’s or as a percentage of full-scale reading.
DIFFERENTIAL NONLINEARITY
Differential Nonlinearity is the difference between the measured
change and the ideal 1 LSB change between any two adjacent
codes. A specified differential nonlinearity of
±1 LSB max over
the operating temperature range ensures monotonicity.
DIGITAL CROSSTALK
The glitch impulse transferred to the output of one converter
due to a change in the digital input code to another of the con-
verters. It is specified in nV secs and is measured at VREF = 0 V.
FULL SCALE ERROR
Full-Scale Error is defined as:
Measured Value – Zero Code Error – Ideal Value
4
o
f
1
4
D
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相关代理商/技术参数 |
参数描述 |
|---|---|
| AD7226KRZ | 制造商:Analog Devices 功能描述:IC, DAC, 8BIT, 143KSPS, SOIC-20 |
| AD7226KRZ-REEL | 功能描述:IC DAC 8BIT QUAD W/AMP 20SOIC RoHS:是 类别:集成电路 (IC) >> 数据采集 - 数模转换器 系列:- 产品培训模块:Data Converter Fundamentals DAC Architectures 标准包装:750 系列:- 设置时间:7µs 位数:16 数据接口:并联 转换器数目:1 电压电源:双 ± 功率耗散（最大）:100mW 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:28-LCC（J 形引线） 供应商设备封装:28-PLCC（11.51x11.51） 包装:带卷 (TR) 输出数目和类型:1 电压，单极；1 电压，双极 采样率（每秒）:143k |
| AD7226TD | 制造商:未知厂家 制造商全称:未知厂家 功能描述:8-Bit Digital-to-Analog Converter |
| AD7226TE | 制造商:未知厂家 制造商全称:未知厂家 功能描述:8-Bit Digital-to-Analog Converter |
| AD7226TE/883B | 制造商:Analog Devices 功能描述:DAC 4-CH R-2R 8BIT 20PIN LCC - Rail/Tube 制造商:Rochester Electronics LLC 功能描述:CMOS DAC IC - Bulk |
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