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參數(shù)資料
| 型號(hào)： | AD7528AQ |
| 廠商： | Analog Devices Inc |
| 文件頁(yè)數(shù)： | 5/8頁(yè) |
| 文件大?。?/td> | 0K |
| 描述： | IC DAC 8BIT DUAL MULT 20-CDIP |
| 產(chǎn)品培訓(xùn)模塊： | Data Converter Fundamentals DAC Architectures |
| 產(chǎn)品變化通告： | Product Discontinuance 27/Oct/2011 |
| 標(biāo)準(zhǔn)包裝： | 18 |
| 設(shè)置時(shí)間： | 400ns |
| 位數(shù)： | 8 |
| 數(shù)據(jù)接口： | 并聯(lián) |
| 轉(zhuǎn)換器數(shù)目： | 2 |
| 電壓電源： | 單電源 |
| 功率耗散（最大）： | 450mW |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 通孔 |
| 封裝/外殼： | 20-CDIP（0.300"，7.62mm） |
| 供應(yīng)商設(shè)備封裝： | 20-CDIP |
| 包裝： | 管件 |
| 輸出數(shù)目和類型： | 2 電流，單極；2 電流，雙極 |
AD7528
REV. B
–5–
Table I. Unipolar Binary Code Table
DAC Latch Contents
Analog Output
MSB
LSB
(DAC A or DAC B)
1 1 1 1 1 1 1 1
–V
IN
255
256
1 0 0 0 0 0 0 1
–V
IN
129
256
1 0 0 0 0 0 0 0
–V
IN
128
256
=
V
IN
2
0 1 1 1 1 1 1 1
–V
IN
127
256
0 0 0 0 0 0 0 1
–V
IN
1
256
0 0 0 0 0 0 0 0
–V
IN
0
256
= 0
Note: 1 LSB = 2
8
() V
IN
() = 1
256
V
IN
()
Table II. Bipolar (Offset Binary) Code Table
DAC Latch Contents Analog Output
MSB
LSB
(DAC A or DAC B)
1 1 1 1 1 1 1 1
+V
IN
127
128
1 0 0 0 0 0 0 1
1 0 0 0 0 0 0 0
0
0 1 1 1 1 1 1 1
–V
IN
1
128
0 0 0 0 0 0 0 1
–V
IN
127
128
0 0 0 0 0 0 0 0
–V
IN
128
Note: 1 LSB = 2
7
() V
IN
() = 1
128
V
IN
()
Table III. Recommended Trim Resistor
Values vs. Grade
Trim
Resistor
J/A/S
K/B/T
L/C/U
R1; R3
1 k
500
200
R2; R4
330
150
82
VIN A
(± 10V)
AD7528
VIN B
(± 10V)
RFB B
AGND
VDD
DB0
DB7
DATA
INPUTS
DAC A/
DAC B
CS
WR
DGND
CONTROL
LOGIC
INPUT
BUFFER
OUT B
LATCH
R41
DAC B
C22
R31
DAC A
LATCH
VOUT B
AGND
RFB A
OUT A
R21
C12
VOUT A
AGND
R11
NOTES:
1R1, R2 AND R3, R4 USED ONLY IF GAIN ADJUSTMENT IS REQUIRED.
SEE TABLE III FOR RECOMMENDED VALUES.
2C1, C2 PHASE COMPENSATION (10pF–15pF) IS REQUIRED WHEN
USING HIGH SPEED AMPLIFIERS TO PREVENT RINGING OR OSCILLATION.
Figure 4. Dual DAC Unipolar Binary Operation
(2 Quadrant Multiplication); See Table I
VIN A
(± 10V)
AD7528
VIN B
(± 10V)
RFB B
AGND
VDD
DB0
DB7
DATA
INPUTS
DAC A/
DAC B
CS
WR
DGND
CONTROL
LOGIC
INPUT
BUFFER
OUT B
LATCH
R41
DAC B
C23
R31
DAC A
LATCH
VOUT B
AGND
RFB A
OUT A
R21
C13
VOUT A
AGND
R11
A1
R72
10k
R62
20k
A2
R5
20k
R11
5k
AGND
R102
20k
R92
10k
A4
R8
20k
R12
5k
AGND
A3
NOTES:
1R1, R2 AND R3, R4 USED ONLY IF GAIN ADJUSTMENT IS REQUIRED.
SEE TABLE III FOR RECOMMENDED VALUES.
ADJUST R1 FOR VOUT A = 0V WITH CODE 10000000 IN DAC A LATCH.
ADJUST R3 FOR VOUT B = 0V WITH CODE 10000000 IN DAC B LATCH.
2MATCHING AND TRACKING IS ESSENTIAL FOR RESISTOR PAIRS
R6, R7 AND R9, R10.
3C1, C2 PHASE COMPENSATION (10pF–15pF) MAY BE REQUIRED
IF A1/A3 IS A HIGH SPEED AMPLIFIER.
Figure 5. Dual DAC Bipolar Operation
(4 Quadrant Multiplication); See Table II
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| AD7528AQ/+ | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Digital-to-Analog Converter |
| AD7528BCHIPS | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Digital-to-Analog Converter |
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| AD7528BN | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| AD7528BQ | 功能描述:IC DAC 8BIT DUAL MULT 20-CDIP RoHS:否 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)模轉(zhuǎn)換器 系列:- 產(chǎn)品培訓(xùn)模塊:Data Converter Fundamentals DAC Architectures 標(biāo)準(zhǔn)包裝:750 系列:- 設(shè)置時(shí)間:7µs 位數(shù):16 數(shù)據(jù)接口:并聯(lián) 轉(zhuǎn)換器數(shù)目:1 電壓電源:雙 ± 功率耗散（最大）:100mW 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:28-LCC（J 形引線） 供應(yīng)商設(shè)備封裝:28-PLCC（11.51x11.51） 包裝:帶卷 (TR) 輸出數(shù)目和類型:1 電壓，單極；1 電壓，雙極 采樣率（每秒）:143k |
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