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參數(shù)資料
| 型號： | AD5611BKSZ-500RL7 |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 10/24頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC DAC 10BIT SPI 5V SC70-6 |
| 產(chǎn)品培訓(xùn)模塊： | Data Converter Fundamentals DAC Architectures |
| 標準包裝： | 500 |
| 系列： | nanoDAC™ |
| 設(shè)置時間： | 6µs |
| 位數(shù)： | 10 |
| 數(shù)據(jù)接口： | DSP，MICROWIRE?，QSPI?，串行，SPI? |
| 轉(zhuǎn)換器數(shù)目： | 1 |
| 電壓電源： | 單電源 |
| 功率耗散（最大）： | 500µW |
| 工作溫度： | -40°C ~ 125°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 6-TSSOP，SC-88，SOT-363 |
| 供應(yīng)商設(shè)備封裝： | SC-70-6 |
| 包裝： | 帶卷 (TR) |
| 輸出數(shù)目和類型： | 1 電壓，單極；1 電壓，雙極 |
AD5601/AD5611/AD5621
Data Sheet
Rev. G | Page 18 of 24
APPLICATIONS
CHOOSING A REFERENCE AS POWER SUPPLY FOR
THE AD5601/AD5611/AD5621
The AD5601/AD5611/AD5621 come in tiny LFCSP and SC70
packages with less than a 100 A supply current. Because of
this, the choice of reference depends on the application
requirements. For applications with space-saving requirements,
the ADR02 is recommended. It is available in an SC70 package
and has excellent drift at 9 ppm/°C (3 ppm/°C in the R-8 package)
and provides very good noise performance at 3.4 V p-p in the 0.1
Hz to 10 Hz range.
Because the supply current required by the AD5601/AD5611/
AD5621 is extremely low, the parts are ideal for low supply
applications. The ADR395 voltage reference is recommended in
this case. It requires less than 100 A of quiescent current and
can, therefore, drive multiple DACs in one system, if required. It
also provides very good noise performance at 8 V p-p in the
0.1 Hz to 10 Hz range.
Figure 51. ADR395 as Power Supply to the AD5601/AD5611/AD5621
Some recommended precision references for use as supplies to
the AD5601/AD5611/AD5621 are listed in Table 7.
Table 7. Precision References for the AD5601/AD5611/AD5621
Part No.
Initial
Accuracy
(mV max)
Temp Drift
(ppm/°C max)
0.1 Hz to 10 Hz
Noise (V p-p typ)
±2
3 (R-8)
8
±2
3 (R-8)
3.4
±3
3 (R-8)
10
±3
3 (SC70)
10
±5
9 (TSOT-23)
8
BIPOLAR OPERATION USING THE
AD5601/AD5611/AD5621
The AD5601/AD5611/AD5621 have been designed for single-
supply operation, but a bipolar output range is also possible
using the circuit shown in Figure 52. The circuit in Figure 52
gives an output voltage range of ±5 V. Rail-to-rail operation at
the amplifier output is achievable using an AD820 or OP295 as
the output amplifier.
Figure 52. Bipolar Operation with the AD5601/AD5611/AD5621
The output voltage for any input code can be calculated as
×
+
×
×
=
R1
R2
V
R1
R2
R1
D
V
DD
N
DD
OUT
2
where D represents the input code in decimal (0 – 2N).
With VDD = 5 V, R1 = R2 = 10 k
V
5
2
10
×
=
N
OUT
D
V
This is an output voltage range of ±5 V, with 0x0000 corre-
sponding to a 5 V output and 0x3FFF corresponding to a
+5 V output.
3-WIRE
SERIAL
INTERFACE
SYNC
SCLK
SDIN
7V
5V
VOUT = 0V TO 5V
ADR395
06853-
050
AD5601/AD5611/
AD5621
R2 = 10kΩ
06853-
051
+5V
–5V
AD820/
OP295
3-WIRE
SERIAL
INTERFACE
+5V
AD5601/AD5611/
AD5621
10F
0.1F
V
DD
V
OUT
R1 = 10kΩ
+5V
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