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参数资料
| 型号： | AD7237ABR |
| 厂商： | ANALOG DEVICES INC |
| 元件分类： | DAC |
| 英文描述： | LC2MOS Dual 12-Bit DACPORTs |
| 中文描述： | DUAL, PARALLEL, 8 BITS INPUT LOADING, 5 us SETTLING TIME, 12-BIT DAC, PDSO24 |
| 封装： | SOIC-24 |
| 文件页数： | 3/12页 |
| 文件大小： | 392K |
| 代理商： | AD7237ABR |
AD7237A/AD7247A
REV. 0
–3–
TIMING CHARACTERISTICS
1, 2
Limit at T
MIN
, T
MAX
(A, B Versions)
Limit at T
MIN
, T
MAX
(T Version)
Parameter
Units
Conditions/Comments
t
1
t
2
t
3
t
4
t
54
t
6
t
7
t
85
0
0
80
80
10
0
0
80
0
0
100
80
10
0
0
100
ns min
ns min
ns min
ns min
ns min
ns min
ns min
ns min
CS
to
WR
Setup Time
CS
to
WR
Hold Time
WR
Pulse Width
Data Valid to
WR
Setup Time
Data Valid to
WR
Hold Time
Address to
WR
Setup Time
Address to
WR
Hold Time
LDAC
Pulse Width
NOTES
1
Sample tested at +25
°
C to ensure compliance. All input signals are specified with tr = tf = 5 ns (10% to 90% of 5 V) and timed from a voltage level of 1.6 V.
2
See Figures 5 and 7.
3
Power Supply tolerance is
±
10% for A version and
±
5% for B and T versions.
4
If 0 ns < t
2
< 10 ns, add t
2
to t
5
. If t
2
≥
10 ns, add 10 ns to t
5
.
5
AD7237A only.
ABSOLUTE MAXIMUM RATINGS
1
(T
A
= +25
°
C unless otherwise noted)
V
DD
to GND (AD7247A) . . . . . . . . . . . . . . . .–0.3 V to +17 V
V
DD
to AGND, DGND (AD7237A) . . . . . . . .–0.3 V to +17 V
V
DD
to V
SS
. . . . . . . . . . . . . . . . . . . . . . . . . . . .–0.3 V to +34 V
AGND to DGND (AD7237A) . . . . . . . . . –0.3 V, V
DD
+0.3 V
V
OUTA
,
2
V
OUTB2
to AGND (GND) . . V
SS
–0.3 V to V
DD
+0.3 V
REF OUT to AGND (GND) . . . . . . . . . . . . . . . . .0 V to V
DD
REF IN to AGND (GND) . . . . . . . . . . –0.3 V to V
DD
+0.3 V
Digital Inputs to DGND (GND) . . . . . . –0.3 V to V
DD
+0.3 V
Operating Temperature Range
Industrial (A, B Versions) . . . . . . . . . . . . . –40
°
C to +85
°
C
Extended (T Version) . . . . . . . . . . . . . . . –55
°
C to +125
°
C
Storage Temperature Range . . . . . . . . . . . . –65
°
C to +150
°
C
Lead Temperature (Soldering, 10 secs) . . . . . . . . . . . . +300
°
C
Power Dissipation (Any Package) to +75
°
C . . . . . . . 1000 mW
Derates above +75
°
C by . . . . . . . . . . . . . . . . . . . . . 10 mW/
°
C
NOTES
1
Stresses above those listed under “Absolute Maximum Ratings” may cause
permanent damage to the device. This is a stress rating only and functional
operation of the device at these or any other conditions above those listed in the
operational sections of this specification is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect device reliability.
2
Short-circuit current is typically 80 mA. The outputs may be shorted to voltages
in this range provided the power dissipation of the package is not exceeded.
ORDERING GUIDE
Relative
Accuracy
(LSB)
Temperature
Range
Package
Option
2
Model
1
AD7237AAN
AD7237ABN
AD7237AAR
AD7237ABR
AD7237ATQ
–40
°
C to +85
°
C
–40
°
C to +85
°
C
–40
°
C to +85
°
C
–40
°
C to +85
°
C
–55
°
C to +125
°
C
±
1 max
±
1/2 max
±
1 max
±
1/2 max
±
1/2 max
N-24
N-24
R-24
R-24
Q-24
AD7247AAN
AD7247ABN
AD7247AAR
AD7247ABR
AD7247ATQ
–40
°
C to +85
°
C
–40
°
C to +85
°
C
–40
°
C to +85
°
C
–40
°
C to +85
°
C
–55
°
C to +125
°
C
±
1 max
±
1/2 max
±
1 max
±
1/2 max
±
1/2 max
N-24
N-24
R-24
R-24
Q-24
NOTES
1
To order MIL-STD-883, Class B processed parts, add /883B to part number.
Contact local sales office for military data sheet and availability.
2
N = Plastic DIP; Q = Cerdip; R = Small Outline (SOIC).
CAUTION
ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily
accumulate on the human body and test equipment and can discharge without detection.
Although the AD7237A/AD7247A features proprietary ESD protection circuitry, permanent
damage may occur on devices subjected to high energy electrostatic discharges. Therefore, proper
ESD precautions are recommended to avoid performance degradation or loss of functionality.
WARNING!
ESD SENSITIVE DEVICE
(V
DD
= +12 V to +15 V,
3
V
SS
= 0 V or –12 V to –15 V,
3
AGND = DGND = 0 V [AD7237A],
GND = 0 V [AD7247A])
相关PDF资料 |
PDF描述 |
|---|---|
| AD7237ATQ | 0.001UF(1000PF) 20% 1KV Y5V RAD |
| AD7247AAN | BAT46W, SCHOTTKY, 100V, 0.15A |
| AD7247AAR | 0.1UF 50V 10% 0805 X7R CERAMIC CAPACITOR |
| AD7247ABN | LC2MOS Dual 12-Bit DACPORTs |
| AD7247ABR | LC2MOS Dual 12-Bit DACPORTs |
相关代理商/技术参数 |
参数描述 |
|---|---|
| AD7237ABR-REEL | 功能描述:IC DAC 12BIT W/AMP W/BUFF 24SOIC RoHS:否 类别:集成电路 (IC) >> 数据采集 - 数模转换器 系列:DACPORT® 标准包装:2,400 系列:- 设置时间:- 位数:18 数据接口:串行 转换器数目:3 电压电源:模拟和数字 功率耗散（最大）:- 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:36-TFBGA 供应商设备封装:36-TFBGA 包装:带卷 (TR) 输出数目和类型:* 采样率（每秒）:* |
| AD7237ABRZ | 功能描述:IC DAC 12BIT LC2MOS DUAL 24-SOIC RoHS:是 类别:集成电路 (IC) >> 数据采集 - 数模转换器 系列:DACPORT® 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 |
| AD7237ABRZ-REEL | 功能描述:IC DAC 12BIT DUAL W/BUFF 24-SOIC RoHS:是 类别:集成电路 (IC) >> 数据采集 - 数模转换器 系列:DACPORT® 产品培训模块:Data Converter Fundamentals DAC Architectures 标准包装:750 系列:- 设置时间:7µs 位数:16 数据接口:并联 转换器数目:1 电压电源:双 ± 功率耗散（最大）:100mW 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:28-LCC（J 形引线） 供应商设备封装:28-PLCC（11.51x11.51） 包装:带卷 (TR) 输出数目和类型:1 电压，单极；1 电压，双极 采样率（每秒）:143k |
| AD7237AQ | 功能描述:IC DAC 12BIT W/AMP W/BUFF 24CDIP RoHS:否 类别:集成电路 (IC) >> 数据采集 - 数模转换器 系列:DACPORT® 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:1,000 系列:- 设置时间:1µs 位数:8 数据接口:串行 转换器数目:8 电压电源:双 ± 功率耗散（最大）:941mW 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:24-SOIC（0.295"，7.50mm 宽） 供应商设备封装:24-SOIC W 包装:带卷 (TR) 输出数目和类型:8 电压，单极 采样率（每秒）:* |
| AD7237ATQ | 功能描述:数模转换器- DAC IMPROVED 12-BIT DACPORT 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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