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参数资料
| 型号： | DAC7644EB |
| 元件分类： | DAC |
| 英文描述： | PARALLEL, WORD INPUT LOADING, 8 us SETTLING TIME, 16-BIT DAC, PDSO48 |
| 封装： | SSOP-48 |
| 文件页数： | 13/21页 |
| 文件大小： | 349K |
| 代理商： | DAC7644EB |
20
DAC7644
DIGITAL TIMING
Figure 14 and Table II provide detailed timing for the digital
interface of the DAC7644.
DIGITAL INPUT CODING
The DAC7644 input data is in Straight Binary format. The
output voltage is given by Equation 1.
SYMBOL
DESCRIPTION
MIN
TYP
MAX
UNITS
tRCS
CS LOW for Read
150
ns
tRDS
R/W HIGH to CS LOW
10
ns
tRDH
R/W HIGH after CS HIGH
10
ns
tDZ
CS HIGH to Data Bus in High Impedance
10
100
ns
tCSD
CS LOW to Data Bus Valid
100
150
ns
tWCS
CS LOW for Write
40
ns
tWS
R/W LOW to CS LOW
0
ns
tWH
R/W LOW after CS HIGH
10
ns
tAS
Address Valid to CS LOW
0
ns
tAH
Address Valid after CS HIGH
10
ns
tLS
CS LOW to LOADDACS HIGH
30
ns
tLH
CS LOW after LOADDACS HIGH
100
ns
tLX
LOADDACS HIGH
100
ns
tDS
Data Valid to CS LOW
0
ns
tDH
Data Valid after CS HIGH
10
ns
tLWD
LOADDACS LOW
100
ns
tSS
RSTSEL Valid Before RESET HIGH
0
ns
tSH
RSTSEL Valid After RESET HIGH
200
ns
tRSS
RESET LOW Before RESET HIGH
10
ns
tRSH
RESET LOW After RESET HIGH
10
ns
tS
Settling Time
10
s
TABLE II. Timing Specifications (TA = –40°C to +85°C).
t
RCS
CS
t
RDS
t
RDH
t
AS
t
CSD
t
DZ
t
AH
R/W
A0/A1
Data Out
Data Valid
t
WCS
CS
t
WS
t
AS
t
AH
t
WH
R/W
A0/A1
t
LS
t
LWD
t
LH
t
S
±0.003% of FSR
Error Band
±0.003% of FSR
Error Band
t
LX
LOADDACS
t
DS
t
DH
Data In
V
OUT
Data Read Timing
Data Write Timing
t
RSH
RST
V
OUT,RESET SEL LOW
+FS
–FS
t
SS
t
SH
RESET SEL
V
OUT,RESET SEL HIGH
MS
+FS
–FS
DAC7644 Reset Timing
t
RSS
where N is the digital input code. This equation does not
include the effects of offset (zero-scale) or gain (full-scale)
errors.
FIGURE 14. Digital Input and Output Timing.
(1)
VV
L
VH
V
L
N
OUT
REF
=+ ()
–
,
65 536
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相关代理商/技术参数 |
参数描述 |
|---|---|
| DAC7644EB | 制造商:Texas Instruments 功能描述:IC 16BIT DAC 100KHZ SSOP48 制造商:Texas Instruments 功能描述:IC, 16BIT DAC, 100KHZ, SSOP48 制造商:Texas Instruments 功能描述:IC, 16BIT DAC, 100KHZ, SSOP48; Resolution (Bits):16bit; Sampling Rate:100kSPS; Input Channel Type:Parallel; Supply Voltage Range: 4.75V to 5.25V; Digital IC Case Style:SSOP; No. of Pins:48; Data Interface:Parallel; Supply ;RoHS Compliant: Yes |
| DAC7644EB/1K | 功能描述:数模转换器- DAC 16-Bit Quad Voltage Output RoHS:否 制造商:Texas Instruments 转换器数量:1 DAC 输出端数量:1 转换速率:2 MSPs 分辨率:16 bit 接口类型:QSPI, SPI, Serial (3-Wire, Microwire) 稳定时间:1 us 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-14 封装:Tube |
| DAC7644EB/1KG4 | 功能描述:数模转换器- DAC 16-Bit Quad Voltage Output RoHS:否 制造商:Texas Instruments 转换器数量:1 DAC 输出端数量:1 转换速率:2 MSPs 分辨率:16 bit 接口类型:QSPI, SPI, Serial (3-Wire, Microwire) 稳定时间:1 us 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-14 封装:Tube |
| DAC7644EBG4 | 功能描述:数模转换器- DAC 16-Bit Quad Voltage Output RoHS:否 制造商:Texas Instruments 转换器数量:1 DAC 输出端数量:1 转换速率:2 MSPs 分辨率:16 bit 接口类型:QSPI, SPI, Serial (3-Wire, Microwire) 稳定时间:1 us 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-14 封装:Tube |
| DAC7644EG4 | 功能描述:数模转换器- DAC 16-Bit Quad Voltage Output RoHS:否 制造商:Texas Instruments 转换器数量:1 DAC 输出端数量:1 转换速率:2 MSPs 分辨率:16 bit 接口类型:QSPI, SPI, Serial (3-Wire, Microwire) 稳定时间:1 us 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-14 封装:Tube |
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