Ads7066 Evm Schematic Diagram - Texas Instruments ADS7066EVM-PDK User Manual

Bill of Materials, Printed Circuit Board Layout, and Schematics
5.3 Schematics
Figure 24 illustrates the ADS7066 EVM schematics.
5V
R1
0
U1 TPS78001DDCR
1
IN
3
EN
DNP
GND
C3
DNP
1uF
AGND AGND
AVDD
AVDD
R28 C4
100k 10µF
J6
1 Ref_EN
2
AGND
AGND
Place jumper to disable
AGND
R9
AIN1/GPIO1
1.00k
R10
C10
AIN2/GPIO2
330pF
1.00k
R11
C11
AIN3/GPIO3
330pF
1.00k
AGND
AGND
AGND
AVDD
C16
0.1µF
U5
AGND
R21
OPA325IDBVR
AIN0/GPIO0 3
+
1
0
4
-
R27
1.00M
AGND AGND
R19 R20
DNP
0 0
AGND
To By pass op amp, Remove R21 and place on R26
22
ADS7066EVM-PDK Evaluation Module
AVDD
AVDD TP1
R8
5
OUT DNP
0
R2
4
FB DNP
1.69M C2
1uF
Output 3.3V
R3
DNP
1.00M
AGND
AGND
U2
1 5
VIN OUT_S
Ref_EN 2 6
EN OUT_F
C5
3 7 47µF
SS GND_F
4 8
FILT GND_S
R4 R5
0.22 C7 0
REF6025IDGKR
1uF
AGND AGND AGND
AIN0/GPIO0 R26
DNP
C12
330pF
R12
AIN4/GPIO4
1.00k
C13
330pF
R13
AIN5/GPIO5
AGND
1.00k
C14
330pF
R14
AIN6/GPIO6
AGND
1.00k
AIN0
TP9
R22
AIN0
107
C17
680pF
AGND
AGND
Figure 24. ADS7066 EVM Schematic Diagram
Copyright © 2020, Texas Instruments Incorporated
DVDD
DVDD TP2
J2
1
DNP 2
D1 µF
DNP DNP C1
5.1V
10
AGND AGND
AGND
For external DVDD, remove R6
AVDD DVDD
R7
0
C6
1uF C9
1uF
U3
AGND
A4 A3
REF AVDD
AGND
AIN0 C3 A2
AIN0/GPIO0 DVDD
0
C2
AIN1/GPIO1
CS
D1 C4
AIN2/GPIO2 CS
C1 D4 SCLK
AIN3/GPIO3 SCLK
B1 D2 SDI
AIN4/GPIO4 SDI
A1 D3 SDO
AIN5/GPIO5 SDO
B2
AIN6/GPIO6
B3 B4
AIN7/GPIO7 GND
AIN7/GPIO7 ADS7066YBH
AGND
AVDD D2
R25
1 2 AIN7/GPIO7
2.20k
LTST-C150CKT
Red
C15
330pF
AGND
J5
AIN0/GPIO0 AIN1/GPIO1
1 2
3 4
AIN2/GPIO2 5 6 AIN3/GPIO3
AIN4/GPIO4 7 8 AIN5/GPIO5
9 10
AIN6/GPIO6 AIN7/GPIO7
11 12
PEC06DAAN
AGND
3V3 J1
1
+3.3V
2
Analog_In
3
LP_UART_RX
4
LP_UART_TX
5
GPIO !
6
Analog In
R29
SCLK
7
SPI_CLK
ID_WP 8
49.9
GPIO ! Analog_In/I2S_SCLK
ID_SCL 9
I2C_SCL Analog_Out/I2S_SDout
ID_SDA 10
I2C_SDA Analog_Out/I2S_SDin
SSQ-110-03-T-D
J3
40
PWM/GPIO !
39
PWM/GPIO !
38
PWM/GPIO !
37
PWM/GPIO !
36
Timer_Cap/GPIO !
35
Timer_Cap/GPIO !
34
GPIO !
33
GPIO !
32
GPIO !
31
GPIO !
SSQ-110-03-T-D
3V3
R6
0
C8
1uF
DVDD
AGND
R16 R17 R18
CS R15
100k 100k 100k
TP3 100k SCLK
TP6 SDI
TP7 SDO
TP8
R23
10.0k
U4
1 8
A0 VCC
2 7 ID_WP
A1 WP
3 6 ID_SCL
A2 SCL
4 5 ID_SDA
VSS SDA
BR24G32FVT-3AGE2
AGND
SBAU342A – February 2020 – Revised June 2020
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5V
21
+5V
22
GND
23
Analog_In
24
Analog_In
25
Analog_In
26
Analog_In
AGND
27
Analog_In/I2S_WS
28
29
30
20
GND
19 CS
PWM/GPIO !
18
GPIO !
17
GPIO
16
RST
15 SDI
SPI_MOSI
14 SDO AGND
SPI_MISO
13
SPI_CS/GPIO !
12
SPI_CS/GPIO !
11
GPIO !
TP4 TP5
GND GND
AGND AGND
3V3 3V3
R24
10.0k
J4
1
C18 DNP
2
0.1µF
25V
AGND AGND