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AD588
USING THE AD588 WITH CONVERTERS
The AD588 is an ideal reference for a wide variety of analog-to-
digital and digital-to-analog converters. Several representative
examples follow.
AD7535 14-BIT DIGITAL-TO-ANALOG CONVERTER
High resolution CMOS digital-to-analog converters require a
reference voltage of high precision to maintain rated accuracy.
The combination of the AD588 and AD7535 takes advantage of
the initial accuracy, drift, and full Kelvin output capability of the
AD588, as well as the resolution, monotonicity, and accuracy of the
AD7535 to produce a subsystem with outstanding characteristics
(see Figure 32).
AD569 16-BIT DIGITAL-TO-ANALOG CONVERTER
Another application that fully utilizes the capabilities of the AD588
is supplying a reference for the AD569, as shown in Figure 33.
Amplifier A2 senses system common and forces V CT to assume this
value, producing +5 V and ?5 V at Pin 6 and Pin 8, respectively.
Amplifier A3 and Amplifier A4 buffer these voltages out to the
appropriate reference force-sense pins of the AD569. The full
Kelvin scheme eliminates the effect of the circuit traces or wires and
the wire bonds of the AD588 and AD569 themselves, which would
otherwise degrade system performance.
N.C.
V DD
7
6
4
3
V REFS
1
28
26
3
R FS
14-BIT DAC
4
I OUT
R B
A1
R1
R4
AD588
A3
1
14
+10V V REF
AGNDS
2
5
14
AD7535
DAC REGISTER
23 LDAC
R3
5
R2
A2
9
10
8
R5
12
R6
11
13
A4
15
2 +V S
16 –V S
AGNDF
6
MS
INPUT
REGISTER
LS
INPUT
REGISTER
24 CSLSB
22 CSMSB
25 WR
8
DB13
21
DB0
7
DGND
27
V SS
Figure 32. AD588/AD7535 Connections
2
16
V H
6
4
A 3 + IN
A3
A 3
OUT
1
3
+V REF
FORCE
1
+V S
28
–V S
+12V
–12V
A 3 – IN
3
+5V
2
+V REF
SENSE
AD569
A1
AD588
10k ?
10k ?
A2
A4
A 2 – IN
A 2 + IN
A 4 – IN
A 4
OUT
12
11
10
9
14
15
V CT
–5V
16
15
–V REF
SENSE
–V REF
FORCE
S
E
G
M
E
N
T
S
E
L
E
C
T
O
R
T
A
P
S
E
L
E
C
T
O
R
17
V OUT
–5V TO
+5V
V L
8
13
A 4 + IN
8 MSBs
8 LSBs
GND 18
LATCHES
13
14
12
9
7
4
1 9 2 2
2 4 2 7
8
23
CS LDAC
DB15
DB0
HBE LBE
Figure 33. High Accuracy ±5 V Tracking Reference for AD569
Rev. L | Page 15 of 20
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相关代理商/技术参数
AD588BD 制造商:未知厂家 制造商全称:未知厂家 功能描述:Voltage Reference
AD588BQ 功能描述:IC VREF SERIES PREC ADJ 16-CDIP RoHS:否 类别:集成电路 (IC) >> PMIC - 电压基准 系列:- 标准包装:2,000 系列:- 基准类型:旁路，可调节，精度 输出电压:1.24 V ~ 16 V 容差:±0.5% 温度系数:- 输入电压:1.24 V ~ 16 V 通道数:1 电流 - 阴极:100µA 电流 - 静态:- 电流 - 输出:20mA 工作温度:-40°C ~ 85°C 安装类型:通孔 封装/外壳:TO-226-3、TO-92-3（TO-226AA）成形引线 供应商设备封装:TO-92-3 包装:带卷 (TR)
AD588JQ 功能描述:IC VREF SERIES PREC ADJ 16-CDIP RoHS:否 类别:集成电路 (IC) >> PMIC - 电压基准 系列:- 标准包装:1,000 系列:- 基准类型:旁路，可调节，精度 输出电压:2.495 V ~ 36 V 容差:±0.5% 温度系数:标准值 34ppm/°C 输入电压:2.495 V ~ 36 V 通道数:1 电流 - 阴极:1mA 电流 - 静态:- 电流 - 输出:100mA 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:TO-243AA 供应商设备封装:SOT-89-3 包装:带卷 (TR)
AD588KQ 功能描述:IC VREF SERIES PREC ADJ 16-CDIP RoHS:否 类别:集成电路 (IC) >> PMIC - 电压基准 系列:- 标准包装:2,000 系列:- 基准类型:旁路，可调节，精度 输出电压:1.24 V ~ 16 V 容差:±0.5% 温度系数:- 输入电压:1.24 V ~ 16 V 通道数:1 电流 - 阴极:100µA 电流 - 静态:- 电流 - 输出:20mA 工作温度:-40°C ~ 85°C 安装类型:通孔 封装/外壳:TO-226-3、TO-92-3（TO-226AA）成形引线 供应商设备封装:TO-92-3 包装:带卷 (TR)
AD588SD 制造商:未知厂家 制造商全称:未知厂家 功能描述:Voltage Reference
AD588SD/883B 制造商:未知厂家 制造商全称:未知厂家 功能描述:Voltage Reference
AD588SE 制造商:Rochester Electronics LLC 功能描述:- Bulk
AD588SE/883B 制造商:Analog Devices 功能描述:V-Ref Programmable ±5V/±10V 20-Pin LCC Tube