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參數(shù)資料
| 型號： | AD7654ASTZ |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 27/28頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC ADC 16BIT 500KSPS DUAL 48LQFP |
| 標準包裝： | 1 |
| 系列： | PulSAR® |
| 位數(shù)： | 16 |
| 采樣率（每秒）： | 500k |
| 數(shù)據(jù)接口： | 串行，并聯(lián) |
| 轉換器數(shù)目： | 1 |
| 功率耗散（最大）： | 135mW |
| 電壓電源： | 模擬和數(shù)字 |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 48-LQFP |
| 供應商設備封裝： | 48-LQFP（7x7） |
| 包裝： | 托盤 |
| 輸入數(shù)目和類型： | 2 個差分，單極 |
| 產(chǎn)品目錄頁面： | 778 (CN2011-ZH PDF) |
| 配用： | EVAL-AD7654CBZ-ND - BOARD EVALUATION FOR AD7654 |
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AD7654
Rev. B | Page 8 of 28
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
48
AG
ND
47
AG
ND
46
IN
A
1
45
IN
A
N
44
IN
A
2
43
RE
F
A
42
RE
F
B
41
IN
B
2
40
IN
B
N
39
IN
B
1
38
RE
F
G
N
D
37
RE
F
35
CNVST
34
PD
33
RESET
30
EOC
31
RD
32
CS
36
DVDD
29
BUSY
28
D15
27
D14
25
D12
26
D13
2
AVDD
3
A0
4
BYTESWAP
7
IMPULSE
6
DGND
5
A/B
1
AGND
8
SER/PAR
9
D0
10
D1
12
D3/DIVSCLK[1]
11
D2/DIVSCLK[0]
13
D
4/E
X
T
/IN
T
14
D
5/
IN
VS
YN
C
15
D6/
INV
S
C
L
K
16
D7/
RDC/
S
D
IN
17
OGN
D
18
OV
D
19
DV
D
20
DG
ND
21
D8/
S
DO
UT
22
D9/
S
CL
K
23
D10/
S
Y
NC
24
D
11/
RDE
R
O
R
PIN 1
AD7654
TOP VIEW
(Not to Scale)
03
05
7-
0
04
Figure 4. 48-Lead LQFP (ST-48) and 48-Lead LFCSP (CP-48)
Table 6. Pin Function Descriptions
Pin No.
Mnemonic
Type1
Description
1, 47, 48
AGND
P
Analog Power Ground Pin.
2
AVDD
P
Input Analog Power Pin. Nominally 5 V.
3
A0
DI
Multiplexer Select. When LOW, the analog inputs INA1 and INB1 are sampled simultaneously, then
converted. When HIGH, the analog inputs INA2 and INB2 are sampled simultaneously, then converted.
4
BYTESWAP
DI
Parallel Mode Selection (8 bit, 16 bit). When LOW, the LSB is output on D[7:0] and the MSB is output on
D[15:8]. When HIGH, the LSB is output on D[15:8] and the MSB is output on D[7:0].
5
A/B
DI
Data Channel Selection. In parallel mode, when LOW, the data from Channel B is read. When HIGH, the
data from Channel A is read. In serial mode, when HIGH, Channel A is output first followed by Channel
B. When LOW, Channel B is output first followed by Channel A.
6, 20
DGND
P
Digital Power Ground.
7
IMPULSE
DI
Mode Selection. When HIGH, this input selects a reduced power mode. In this mode, the power
dissipation is approximately proportional to the sampling rate.
8
SER/PAR
DI
Serial/Parallel Selection Input. When LOW, the parallel port is selected; when HIGH, the serial interface
mode is selected and some bits of the DATA bus are used as a serial port.
9, 10
D[0:1]
DO
Bit 0 and Bit 1 of the Parallel Port Data Output Bus. When SER/PAR is HIGH, these outputs are in high
impedance.
11, 12
D[2:3] or
DI/O
When SER/PAR is LOW, these outputs are used as Bit 2 and Bit 3 of the parallel port data output bus.
DIVSCLK[0:1]
When SER/PAR is HIGH, EXT/INT is LOW, and RDC/SDIN is LOW, which is the serial master read after
convert mode, these inputs, part of the serial port, are used to slow down if desired the internal serial
clock that clocks the data output. In the other serial modes, these inputs are not used.
13
D[4]
DI/O
When SER/PARis LOW, this output is used as Bit 4 of the parallel port data output bus.
or EXT/INT
When SER/PARis HIGH, this input, part of the serial port, is used as a digital select input for choosing
the internal or an external data clock, called respectively, master and slave mode. With EXT/INT tied
LOW, the internal clock is selected on SCLK output. With EXT/INT set to a logic HIGH, output data is
synchronized to an external clock signal connected to the SCLK input.
14
D[5]
DI/O
When SER/PAR is LOW, this output is used as Bit 5 of the parallel port data output bus.
or INVSYNC
When SER/PAR is HIGH, this input, part of the serial port, is used to select the active state of the SYNC
signal in Master modes. When LOW, SYNC is active HIGH. When HIGH, SYNC is active LOW.
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相關代理商/技術參數(shù) |
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|---|---|
| AD7654ASTZ | 制造商:Analog Devices 功能描述:IC 16BIT ADC SMD 7654 LQFP48 |
| AD7654ASTZRL | 功能描述:IC ADC 16BIT DUAL 2CH 48LQFP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉換器 系列:PulSAR® 標準包裝:1,000 系列:- 位數(shù):12 采樣率（每秒）:300k 數(shù)據(jù)接口:并聯(lián) 轉換器數(shù)目:1 功率耗散（最大）:75mW 電壓電源:單電源 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） 供應商設備封裝:24-SOIC 包裝:帶卷 (TR) 輸入數(shù)目和類型:1 個單端，單極；1 個單端，雙極 |
| AD7655 | 制造商:AD 制造商全稱:Analog Devices 功能描述:14-Bit, 1 MSPS, Differential, Programmable Input PulSAR ADC |
| AD7655ACP | 制造商:Analog Devices 功能描述:ADC Single SAR 1Msps 16-bit Parallel/Serial 48-Pin LFCSP EP 制造商:Rochester Electronics LLC 功能描述:LOW COST 4-CHANNEL 1 MSPS 16-BIT ADC - Bulk 制造商:Analog Devices 功能描述:IC 16BIT ADC SMD 7655 LFSCP-48 |
| AD7655ACPRL | 制造商:Analog Devices 功能描述:ADC Single SAR 1Msps 16-bit Parallel/Serial 48-Pin LFCSP EP T/R |
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