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參數(shù)資料
| 型號： | AD7846KN |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 6/24頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC DAC 16BIT LC2MOS VOUT 28-DIP |
| 產(chǎn)品培訓(xùn)模塊： | Data Converter Fundamentals DAC Architectures |
| 標(biāo)準包裝： | 13 |
| 設(shè)置時間： | 7µs |
| 位數(shù)： | 16 |
| 數(shù)據(jù)接口： | 并聯(lián) |
| 轉(zhuǎn)換器數(shù)目： | 1 |
| 電壓電源： | 雙 ± |
| 功率耗散（最大）： | 100mW |
| 工作溫度： | 0°C ~ 70°C |
| 安裝類型： | 通孔 |
| 封裝/外殼： | 28-DIP（0.600"，15.24mm） |
| 供應(yīng)商設(shè)備封裝： | 28-PDIP |
| 包裝： | 管件 |
| 輸出數(shù)目和類型： | 1 電壓，單極；1 電壓，雙極 |
| 采樣率（每秒）： | 143k |
AD7846
Rev. G | Page 14 of 24
BIPOLAR OPERATION
Figure 24 shows the AD7846 set up for ±10 V bipolar operation.
The AD588 provides precision ±5 V tracking outputs that are
fed to the VREF+ and VREF inputs of the AD7846. The code table
DGND
+15V
+5V
VDD
VSS
VCC
VOUT
RIN
VREF+
VREF–
R2
10k
C1
1F
SIGNAL
GROUND
–15V
*ADDITIONAL PINS OMITTED FOR CLARITY
AD7846*
AD588
VOUT
(–10V TO +10V)
+15V
–15V
R3
100k
R1
39k
+15V
4
21
9
5
6
20
7
2
3
1
14
15
16
13
8
12
11
10
5
9
7
46
8
0
84
90
-0
24
Figure 24. Bipolar ±10 V Operation
Table 9. Offset Binary Code Table for Figure 24
Binary Number in DAC Latch
MSB
LSB1
Analog Output (VOUT)
1111 1111 1111 1111
+10 (32,767/32,768) V
1000 0000 0000 0001
+10 (1/32,768) V
1000 0000 0000 0000
0 V
0111 1111 1111 1111
10 (1/32,768) V
0000 0000 0000 0000
10 (32,768/32,768) V
1 LSB = 10 V/215 = 10 V/32,768 = 305 μV.
Full-scale and bipolar zero adjustment are provided by varying
the gain and balance on the AD588. R2 varies the gain on the
AD588 while R3 adjusts the +5 V and 5 V outputs together
with respect to ground.
For bipolar zero adjustment on the AD7846, load the DAC with
100…000 and adjust R3 until VOUT = 0 V. Full scale is adjusted
by loading the DAC with all 1s and adjusting R2 until VOUT =
9.999694 V.
When bipolar zero and full-scale adjustment are not needed, R2
and R3 can be omitted, Pin 12 on the AD588 should be connected
to Pin 11, and Pin 5 should be left floating. If a user wants a 5 V
output range, there are two choices. By tying Pin 6 (RIN) of the
AD7846 to VOUT (Pin 5), the output stage gain is reduced to
unity and the output range is ±5 V. If only a positive 5 V reference
is available, bipolar ±5 V operation is still possible. Tie VREF to
0 V and connect RIN to VREF+. This also gives a ±5 V output
range. However, the linearity, gain, and offset error specifications
are the same as the unipolar 0 V to 5 V range.
MULTIPLYING OPERATION
The AD7846 is a full multiplying DAC. To obtain four-quadrant
multiplication, tie VREF to 0 V, apply the ac input to VREF+, and
response when the DAC is used in this fashion.
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| AD7846KNZ | 功能描述:IC DAC 16BIT LC2MOS VOUT 28-DIP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)模轉(zhuǎn)換器 系列:- 標(biāo)準包裝:1 系列:- 設(shè)置時間:4.5µs 位數(shù):12 數(shù)據(jù)接口:串行，SPI? 轉(zhuǎn)換器數(shù)目:1 電壓電源:單電源 功率耗散（最大）:- 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:8-SOIC（0.154"，3.90mm 寬） 供應(yīng)商設(shè)備封裝:8-SOICN 包裝:剪切帶 (CT) 輸出數(shù)目和類型:1 電壓，單極；1 電壓，雙極 采樣率（每秒）:* 其它名稱:MCP4921T-E/SNCTMCP4921T-E/SNRCTMCP4921T-E/SNRCT-ND |
| AD7846KNZ | 制造商:Analog Devices 功能描述:D/A Converter (D-A) IC |
| AD7846KP | 功能描述:IC DAC 16BIT LC2MOS VOUT 28PLCC RoHS:否 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)模轉(zhuǎn)換器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準包裝:1,000 系列:- 設(shè)置時間:1µs 位數(shù):8 數(shù)據(jù)接口:串行 轉(zhuǎn)換器數(shù)目:8 電壓電源:雙 ± 功率耗散（最大）:941mW 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:24-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:24-SOIC W 包裝:帶卷 (TR) 輸出數(shù)目和類型:8 電壓，單極 采樣率（每秒）:* |
| AD7846KP-REEL | 制造商:AD 制造商全稱:Analog Devices 功能描述:LC2MOS 16-Bit Voltage Output DAC |
| AD7846KPZ | 功能描述:IC DAC 16BIT LC2MOS VOUT 28PLCC RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)模轉(zhuǎn)換器 系列:- 標(biāo)準包裝:1 系列:- 設(shè)置時間:4.5µs 位數(shù):12 數(shù)據(jù)接口:串行，SPI? 轉(zhuǎn)換器數(shù)目:1 電壓電源:單電源 功率耗散（最大）:- 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:8-SOIC（0.154"，3.90mm 寬） 供應(yīng)商設(shè)備封裝:8-SOICN 包裝:剪切帶 (CT) 輸出數(shù)目和類型:1 電壓，單極；1 電壓，雙極 采樣率（每秒）:* 其它名稱:MCP4921T-E/SNCTMCP4921T-E/SNRCTMCP4921T-E/SNRCT-ND |
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