参数资料
| 型号： | AD9148BBPZRL |
| 厂商： | Analog Devices Inc |
| 文件页数： | 72/72页 |
| 文件大小： | 0K |
| 描述： | IC DAC 16BIT SPI/SRL 196BGA |
| 标准包装： | 1,500 |
| 系列： | TxDAC+® |
| 设置时间： | 20ns |
| 位数： | 16 |
| 数据接口： | 串行，SPI? |
| 转换器数目： | 4 |
| 电压电源： | 单电源 |
| 功率耗散（最大）： | 2.67W |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 196-LFBGA 裸露焊盘 |
| 供应商设备封装： | 196-BGA |
| 包装： | 带卷 (TR) |
| 输出数目和类型： | 4 电流，单极 |
| 采样率（每秒）： | 1G |
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Data Sheet
AD9148
Rev. B | Page 9 of 72
ABSOLUTE MAXIMUM RATINGS
Table 6.
Parameter
With
Respect To
Rating
AVDD33, IOVDD
AGND,
DGND,
CGND
0.3 V to +3.6 V
DVDD18, CVDD18
AGND,
DGND,
CGND
0.3 V to +2.10 V
AGND
DGND,
CGND
0.3 V to +0.3 V
DGND
AGND,
CGND
0.3 V to +0.3 V
CGND
AGND,
DGND
0.3 V to +0.3 V
I120, VREF
AGND
0.3 V to AVDD33 + 0.3 V
IOUT1_P, IOUT1_N,
IOUT2_P, IOUT2_N,
IOUT3_P, IOUT3_N,
IOUT4_P, IOUT4_N
AGND
1.0 V to AVDD33 + 0.3 V
A15_P to A0_P,
A15_N to A0_N,
B15_P to B0_P,
B15_N, B0_N
DGND
0.3 V to DVDD18 + 0.3 V
DCIA_P, DCIA_N,
FRAMEA_P, FRAMEA_N,
DCIB_P, DCIB_N,
FRAMEB_P, FRAMEB_N
DGND
0.3 V to DVDD18+ 0.3 V
CLK_P, CLK_N,
REFCLK_P, REFCLK_N
CGND
0.3 V to CVDD18 + 0.3 V
CSB, SCLK, SDIO, SDO,
TDO, TDI, TCK, TMS,
RESET, IRQ, PLL_LOCK
DGND
0.3 V to IOVDD + 0.3 V
Junction Temperature
125°C
Storage Temperature
Range
65°C to +150°C
Stresses above those listed under Absolute Maximum Ratings
may cause permanent damage to the device. This is a stress
rating only; functional operation of the device at these or any
other conditions above those indicated in the operational
section of this specification is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect
device reliability.
THERMAL RESISTANCE
Typical θJA, θJB, and θJC are specified vs. the number of PCB layers in
still air for each package offering. Airflow increases heat dissipation
effectively reducing θJA and θJB.
Table 7. Thermal Resistance
Package Type
θJA
θJB
θJC
Unit
Notes
196-Ball CSP_BGA
24.7
12.6
5.7
°C/W
4-layer board,
25 PCB vias
19.2
10.9
5.3
°C/W
8-layer board,
25 PCB vias
18.1
10.5
5.3
°C/W
10-layer board,
25 PCB vias
18.0
10.5
5.3
°C/W
12-layer board,
25 PCB vias
196-Ball BGA_ED
20.9
8.6
3.1
°C/W
4-layer board,
25 PCB vias
16.2
7.7
3.1
°C/W
8-layer board,
25 PCB vias
15.2
7.4
3.1
°C/W
10-layer board,
25 PCB vias
15.0
7.4
3.1
°C/W
12-layer board,
25 PCB vias
MAXIMUM SAFE POWER DISSIPATION
The maximum junction temperature for the AD9148 is 125°C.
With the thermal resistance of the molded package (CSP_BGA)
given for a 12 layer board, the maximum power that can be
dissipated in this package can be calculated as
(
) (
)
W
T
Power
JA
A
J
MAX
22
.
2
0
.
18
85
125
=
=
θ
=
To increase the maximum power, the AD9148 is available in a
second package option (BGA_ED), which includes a heat spreader
on top of the package. Also, an external heat sink can be attached to
the top of the AD9148 CSP_BGA package. The adjusted maximum
power for each of these conditions is shown in Table 8.
With the thermal resistance of the heat spreader package (BGA_ED)
given for a 12-layer board, the maximum power that can be
dissipated in this package can be calculated as
(
) (
)
W
T
Power
JA
A
J
MAX
67
.
2
0
.
15
85
125
=
=
θ
=
To increase the maximum power, an external heat sink can be
attached to the top of the AD9148 BGA_ED package. The adjusted
maximum power for an external heat sink is shown in Table 8.
To aid in the selection of package, the maximum fDAC rate for a given
power dissipation over several operating conditions is shown in
Note that, if the programmable inverse sinc filter is enabled, the
ESD CAUTION
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