I
參數(shù)資料
型號(hào)： AD7763BSVZ
廠商： Analog Devices Inc
文件頁數(shù)： 33/33頁
文件大?。?/td> 0K
描述： IC ADC 24BIT SRL 625KSPS 64TQFP
標(biāo)準(zhǔn)包裝： 1
位數(shù)： 24
采樣率（每秒）： 625k
數(shù)據(jù)接口： 串行，SPI?
轉(zhuǎn)換器數(shù)目： 1
功率耗散（最大）： 955.5mW
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： 64-TQFP 裸露焊盤
供應(yīng)商設(shè)備封裝： 64-TQFP-EP（10x10）
包裝： 托盤
輸入數(shù)目和類型： 1 個(gè)差分，單極；1 個(gè)差分，雙極
AD7763
Data Sheet
Rev. B | Page 8 of 32
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
05476-
005
64
DG
ND
63
V
DRI
V
E
62
DG
ND
61
I2
S
60
S
CR
59
DG
ND
58
CDI
V
57
DG
ND
56
F
SO
55
S
CO
54
S
DO
53
DG
ND
52
S
DI
51
F
SI
50
S
DL
49
S
CP
47
ADR1
46
ADR2
45
SH0
42
DGND
43
DGND
44
VDRIVE
48 ADR0
41
DVDD
40
SH1
39
SH2
37
RESET
36
SYNC
35
DGND
34
AGND1
33
AVDD1
38
DRDY
2
MCLKGND
3
MCLK
4
AVDD2
7
AGND1
6
AVDD1
5
AGND2
1
DGND
8
DECAPA
9
REFGND
10
VREF+
12
AVDD4
13
AGND2
14
AVDD2
15
AVDD2
16
AGND2
11
AGND4
PIN 1
17
R
BI
AS
18
AG
ND2
19
V
IN
A+
20
V
IN
A–
21
V
O
UT
A–
22
V
O
UT
A+
23
AG
ND3
24
AV
DD3
25
V
IN
+
26
V
IN
–
27
AV
DD2
28
AG
ND2
29
AG
ND3
30
DE
CAP
B
31
AG
ND3
32
AG
ND3
AD7763
TOP VIEW
(Not to Scale)
NOTES
1. CONNECT THE EXPOSED PAD TO AGNDx WITH SIX TO EIGHT VIAS.
Figure 5. Pin Configuration
Table 5. Pin Function Descriptions
Pin No.
Mnemonic
Description
6, 33
AVDD1
Power Supply for Modulator, 2.5 V. These pins should be decoupled to AGND1 with 100 nF and
10 F capacitors on each pin.
4, 14, 15, 27
AVDD2
Power Supply, 5 V. These pins should be decoupled to AGND2 with 100 nF capacitors on each of
Pin 4, Pin 14, and Pin 15. Pin 27 should be connected to Pin 14 via an 8.2 nH inductor.
24
AVDD3
Power Supply for Differential Amplifier, 3.3 V to 5 V. This pin should be decoupled to AGND3
with a 100 nF capacitor.
12
AVDD4
Power Supply for Reference Buffer, 3.3 V to 5 V. This pin should be decoupled to AGND4
with a 10 nF capacitor in series with a 10
resistor.
7, 34
AGND1
Power Supply Ground for Analog Circuitry Powered by AVDD1.
5, 13, 16, 18, 28
AGND2
Power Supply Ground for Analog Circuitry Powered by AVDD2.
23, 29, 31, 32
AGND3
Power Supply Ground for Analog Circuitry Powered by AVDD3.
11
AGND4
Power Supply Ground for Analog Circuitry Powered by AVDD4.
9
REFGND
Reference Ground. Ground connection for the reference voltage.
41
DVDD
Power Supply for Digital Circuitry and FIR Filter, 2.5 V. This pin should be decoupled to DGND
with a 100 nF capacitor.
44, 63
VDRIVE
Logic Power Supply Input, 1.8 V to 2.5 V. The voltage supplied at these pins determines
the operating voltage of the logic interface. These pins must be connected together and
tied to the same supply. Each pin should also be decoupled to DGND with a 100 nF capacitor.
1, 35, 42, 43, 53, 57, 59,
62, 64
DGND
Ground Reference for Digital Circuitry.
19
VINA+
Positive Input to Differential Amplifier.
20
VINA
Negative Input to Differential Amplifier.
21
VOUTA
Negative Output from Differential Amplifier.
22
VOUTA+
Positive Output from Differential Amplifier.
25
VIN+
Positive Input to the Modulator.
26
VIN
Negative Input to the Modulator.
10
VREF+
Reference Input. The input range of this pin is determined by the reference buffer
supply voltage (AVDD4). See the Reference Voltage Filtering section for more details.
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