參數資料
型號: AD7111ACNZ
廠商: Analog Devices Inc
文件頁數: 7/8頁
文件大小: 0K
描述: IC DAC MONO MULTIPLYING 16-DIP
產品培訓模塊: Data Converter Fundamentals
DAC Architectures
產品變化通告: Product Discontinuance 27/Oct/2011
標準包裝: 25
系列: LOGDAC®
位數: 17
轉換器數目: 1
電壓電源: 單電源
功率耗散(最大): 1W
工作溫度: -40°C ~ 85°C
安裝類型: 通孔
封裝/外殼: 16-DIP(0.300",7.62mm)
供應商設備封裝: 16-PDIP
包裝: 管件
輸出數目和類型: 1 電流,單極
采樣率(每秒): *
AD7111/AD7111A
REV. 0
–7–
Another error arises from the output amplifier s input offset
voltage. The amplifier is operated with a fixed feedback resis-
tance, but the equivalent source impedance (the AD7111/
AD7111A output impedance) varies as a function of attenuation
level. This has the effect of varying thc “noise” gain of the
amplifier, thus creating a varying error due to amplifier offset
voltage. It is recommended that an amplifier with less than
50
V of input offset be used (such as the AD OP07 in dc appli-
cations. Amplifiers with higher offset voltage may cause audible
“thumps” in ac applications due to dc output changes.
The AD7111/AD7111A accuracy is specified and tested using
only the internal feedback resistor. Any gain error (i.e., mis-
match of RFB to the R-2R ladder) that may exist in the
AD7111/AD7111A D/A converter circuit results in a constant
attenuation error over the whole range. The AD7111/AD7111A
accuracy is specified relative to 0 dB attenuation, hence “Gain”
trim resistors—R1 and R2 in Figure 1—can be used to adjust
VOUT = VIN precisely (i.e., 0 dB attenuation) with input code
00000000. The accuracy and monotonic range specifications of
the AD7111/AD7111A are not affected in any way by this gain
trim procedure. For the AD7111/AD7111A L/C/U grades, suit-
able values for R1 and R2 of Figure 1 are R1 = 500
, R2 =
180
; for the K/B/T grades, suitable value are R1 = 1000 ,
R2 = 270
. For additional information on gain error the reader
is referred to the “CMOS DAC Application Guide,” available
from Analog Devices, Inc., Publication Number G872b–8–1/89.
Typical Performance Characteristics
6
0
5
3
1
2
0
5
4
3
2
INPUT VOLTAGE – Volts
I
DD
mA
V
IN APPLIED TO ALL DATA INPUTS
V
DD = +5V
T
A = +25°C
CS = WR = 0V
Figure 6. Typical Supply Current vs. Logic Input Level
0.4
–0.6
30
0.0
–0.4
3
–0.2
0
0.2
27
24
21
18
15
12
9
6
ATTENUATION – dB
ERROR
dB
* *
* * *
* *
*
* *
* * *
**
*
* ** *
**
*
* *
* * * * **
*
* * *
* *
*
V
DD = +5V
T
A = +25
°C
Figure 7. Typical Attenuation Error for 0.75 dB Steps
1.0
–1.0
078
0.5
–0.5
6
0.0
66
72
60
48
42
36
30
24
18
12
54
84
ATTENUATION – dB
ERROR
dB
T
A = +85
°C
T
A = +25
°C
DD
V
= +5V
Figure 8. Typical Attenuation Error for 3 dB Steps vs.
Temperature
Figure 9. Accuracy Specification for K/B/T Grade Devices
at TA = +25°C
相關PDF資料
PDF描述
AD7111ABRZ IC DAC MONO MULTIPLYING 16SOIC
AD7808BNZ IC DAC 10BIT OCTAL SERIAL 24DIP
AD7543JPZ IC DAC 12BIT SRL INP MULT 20PLCC
AD7543GKRZ IC DAC 12BIT SRL INP MULT 16SOIC
ADV7120KPZ50 IC DAC VIDEO 3CH 50MHZ 44PLCC
相關代理商/技術參數
參數描述
AD7111ACR 功能描述:IC DAC LOGARITHMIC 16-SOIC RoHS:否 類別:集成電路 (IC) >> 數據采集 - 數模轉換器 系列:LOGDAC® 標準包裝:2,400 系列:- 設置時間:- 位數:18 數據接口:串行 轉換器數目:3 電壓電源:模擬和數字 功率耗散(最大):- 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:36-TFBGA 供應商設備封裝:36-TFBGA 包裝:帶卷 (TR) 輸出數目和類型:* 采樣率(每秒):*
AD7111ACR-REEL 制造商:Analog Devices 功能描述:DAC 1CH R-2R 17-BIT 16SOIC W - Tape and Reel
AD7111ACRZ 功能描述:IC DAC MONO MULTIPLYING 16SOIC RoHS:是 類別:集成電路 (IC) >> 數據采集 - 數模轉換器 系列:LOGDAC® 標準包裝:2,400 系列:- 設置時間:- 位數:18 數據接口:串行 轉換器數目:3 電壓電源:模擬和數字 功率耗散(最大):- 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:36-TFBGA 供應商設備封裝:36-TFBGA 包裝:帶卷 (TR) 輸出數目和類型:* 采樣率(每秒):*
AD7111ACRZ-REEL 功能描述:IC DAC MONO MULTIPLYING 16SOIC RoHS:是 類別:集成電路 (IC) >> 數據采集 - 數模轉換器 系列:LOGDAC® 標準包裝:2,400 系列:- 設置時間:- 位數:18 數據接口:串行 轉換器數目:3 電壓電源:模擬和數字 功率耗散(最大):- 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:36-TFBGA 供應商設備封裝:36-TFBGA 包裝:帶卷 (TR) 輸出數目和類型:* 采樣率(每秒):*
AD7111BQ 功能描述:IC DAC LOGARITHMIC 16-CDIP RoHS:否 類別:集成電路 (IC) >> 數據采集 - 數模轉換器 系列:LOGDAC® 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:1,000 系列:- 設置時間:1µs 位數:8 數據接口:串行 轉換器數目:8 電壓電源:雙 ± 功率耗散(最大):941mW 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:24-SOIC(0.295",7.50mm 寬) 供應商設備封裝:24-SOIC W 包裝:帶卷 (TR) 輸出數目和類型:8 電壓,單極 采樣率(每秒):*