AD6640AST Analog Devices Inc, AD6640AST Datasheet - Page 5

• Manufacturer Part Number: AD6640AST
• Description: IC ADC 12BIT 65MSPS 44-LQFP
• Manufacturer: Analog Devices Inc

Specifications of AD6640AST

• Rohs Status: RoHS non-compliant
• Function: A/D Converter
• Rf Type: Cellular/PCS, GPS
• Secondary Attributes: 12 Bit, 65MSPS
• Package / Case: 44-LQFP

REV. A
Pin No.
1, 2, 36, 37, 40, 41
3
4
5, 6, 13, 14, 17, 18, 21,
22, 24, 34, 35, 38, 39
7
8
9
10
11, 12, 15, 16, 19, 20
23
25
26–33
42, 43
44
*Output coded as twos complement.
Name
DV
ENCODE
ENCODE
GND
AIN
AIN
V
C1
AV
NC
D0 (LSB)
D1–D8
D9–D10
D11 (MSB)*
REF
CC
CC
ENCODE
ENCODE
DV
DV
AV
V
GND
GND
AIN
AIN
REF
C1
CC
CC
CC
10
11
1
2
3
4
5
6
7
8
9
PIN FUNCTION DESCRIPTIONS
12 13 14 15 16 17 18 19 20 21 22
44
PIN 1
PIN CONFIGURATION
43
Function
3.3 V/5 V Power Supply (Digital). Powers output stage only.
Encode Input. Data conversion initiated on rising edge.
Complement of ENCODE. Drive differentially with ENCODE or bypass to
ground for single-ended clock mode. See Encoding the AD6640 section.
Ground
Analog Input
Complement of Analog Input
Internal Voltage Reference. Nominally 2.4 V. Bypass to ground with
0.1 µF + 0.01 µF microwave chip capacitor.
Internal Bias Point. Bypass to ground with 0.01 µF capacitor.
5 V Power Supply (Analog)
No Connect
Digital Output Bit (Least Significant Bit)
Digital Output Bits
Digital Output Bits
Digital Output Bit (Most Significant Bit)
42
NC = NO CONNECT
41
(Not to Scale)
TOP VIEW
40 39 38
AD6640
–5–
37
36 35 34
33
32
31
30
29
28
27
26
25
24
23
D8
D7
D6
D5
D4
D3
D2
D1
D0 (LSB)
GND
NC
AD6640