参数资料
| 型号： | AD5544ARS |
| 厂商： | Analog Devices Inc |
| 文件页数： | 23/24页 |
| 文件大小： | 0K |
| 描述： | IC DAC 16BIT QUAD SRL IN 28-SSOP |
| 产品培训模块： | Data Converter Fundamentals DAC Architectures |
| 标准包装： | 1 |
| 设置时间： | 900ns |
| 位数： | 16 |
| 数据接口： | 串行，SPI? |
| 转换器数目： | 4 |
| 电压电源： | 双 ± |
| 功率耗散（最大）： | 1.25mW |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 28-SSOP（0.209"，5.30mm 宽） |
| 供应商设备封装： | 28-SSOP |
| 包装： | 管件 |
| 输出数目和类型： | 4 电流，单极；4 电流，双极 |
AD5544/AD5554
Data Sheet
Rev. G | Page 8 of 24
PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS
28
27
26
25
24
23
22
21
20
19
18
17
16
15
1
2
3
4
5
6
7
8
9
10
11
12
13
14
AD5544/
AD5554
TOP VIEW
(Not to Scale)
AGNDA
AGNDD
IOUTA
IOUTD
VREFA
VREFD
RFBARFBD
MSB
DGND
VSS
VDD
AGNDF
CLK
SDO
SDI
NC
RFBB
RFBC
VREFB
VREFC
IOUTB
IOUTC
AGNDBAGNDC
NC = NO CONNECT
LDAC
CS
RS
00
94
3
-00
3
Figure 5. TSSOP Pin Configuration
NOTES
1. NC = NO CONNECT.
2. CONNECT EXPOSED PAD TO AGND.
24 DGND
23 VSS
22 AGNDF
21 LDAC
20 SDO
19 NC
18 RFBC
17 VREFC
1
2
3
4
5
6
7
8
AGNDA
IOUTA
VREFA
RFBA
MSB
RS
VDD
CS
9
10
11
12
13
14
15
16
CL
K
SD
I
R
FB
B
V
RE
F
B
I OU
T
B
A
GN
D
B
A
GN
D
C
I OU
T
C
32
31
30
29
28
27
26
25
NC
A
GN
D
I OU
T
D
V
REF
D
R
FB
D
AD5544
TOP VIEW
(Not to Scale)
00
94
3-
0
35
Figure 6. LFCSP Pin Configuration
Table 4. Pin Function Descriptions
TSSOP
Pin No.
LFCSP
Pin No.
Mnemonic
Description
1
AGNDA
DAC A Analog Ground.
2
IOUTA
DAC A Current Output.
3
VREFA
DAC A Reference Voltage Input Terminal. Establishes DAC A full-scale output voltage. This pin can be
tied to the VDD pin.
4
RFBA
Establish the voltage output for DAC A by connecting to an external amplifier output.
5
MSB
MSB Bit. Set pin during a reset pulse (RS) or at system power-on if tied to ground or VDD.
6
RS
Reset Pin, Active Low Input. Input registers and DAC registers are set to all 0s or half-scale code
(0x8000 for the AD5544 and 0x2000 for the AD5554), determined by the voltage on the MSB pin.
Register data = 0x0000 when MSB = 0.
7
VDD
Positive Power Supply Input. Specified range of operation: 5 V ± 10%.
8
CS
Chip Select, Active Low Input. Disables shift register loading when high. Transfers serial register data
to the input register when CS/LDAC returns high. Does not affect LDAC operation.
9
CLK
Clock Input. Positive edge clocks data into the shift register.
10
SDI
Serial Data Input. Input data loads directly into the shift register.
11
RFBB
Establish the voltage output for DAC B by connecting to an external amplifier output.
12
VREFB
DAC B Reference Voltage Input Terminal. Establishes DAC B full-scale output voltage. This pin can be
tied to the VDD pin.
13
IOUTB
DAC B Current Output.
14
AGNDB
DAC B Analog Ground.
15
AGNDC
DAC C Analog Ground.
16
IOUTC
DAC C Current Output.
17
VREFC
DAC C Reference Voltage Input Terminal. Establishes DAC C full-scale output voltage. This pin can be
tied to the VDD pin.
18
RFBC
Establish the voltage output for DAC C by connecting to an external amplifier output.
19
NC
No Connect. Leave the pin unconnected.
20
SDO
Serial Data Output. Input data loads directly into the shift register. Data appears at SDO at 19 clock
pulses for the AD5544 and 17 clock pulses for the AD5554 after input at the SDI pin.
21
LDAC
Load DAC Register Strobe, Level Sensitive Active Low. Transfers all input register data to DAC
registers. Asynchronous active low input. See Table 8 and Table 9 for operation.
22
AGNDF
High Current Analog Force Ground.
23
VSS
Negative Bias Power Supply Input. Specified range of operation: 5.5 V to +0.3 V.
24
DGND
Digital Ground Pin.
25
RFBD
Establish the voltage output for DAC D by connecting to an external amplifier output.
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| AD5544ARSZ | 功能描述:IC DAC 16BIT QUAD SRL IN 28-SSOP RoHS:是 类别:集成电路 (IC) >> 数据采集 - 数模转换器 系列:- 标准包装:1 系列:- 设置时间:4.5µs 位数:12 数据接口:串行，SPI? 转换器数目:1 电压电源:单电源 功率耗散（最大）:- 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:8-SOIC（0.154"，3.90mm 宽） 供应商设备封装:8-SOICN 包装:剪切带 (CT) 输出数目和类型:1 电压，单极；1 电压，双极 采样率（每秒）:* 其它名称:MCP4921T-E/SNCTMCP4921T-E/SNRCTMCP4921T-E/SNRCT-ND |
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