AD9040A Analog Devices, Inc., AD9040A Datasheet - Page 4

• Manufacturer Part Number: AD9040A
• Description: 10-bit 40 Msps A/d Converter
• Manufacturer: Analog Devices, Inc.

Pin No.
1, 12, 21
2, 4, 11, 14, 22 GND
3, 10
5
6
7
8
9
13
15
16
17–20
23
24–27
28
AD9040A
PIN FUNCTION DESCRIPTIONS
Name
–V
+V
V
V
BP
NC
ENCODE Encode Clock Input to ADC.
A
OR
D9 (MSB) Most Significant Bit of ADC
D8–D5
V
D4–D1
D0 (LSB) Least Significant Bit of ADC
OUT
REF
IN
D
S
REF
S
OUTPUTS
ENCODE
DIGITAL
Digital Output Bits of ADC; TTL/
Digital Output Bits of ADC;
A
Function
5 V Power Supply
Ground
Analog +5 V Power Supply
Internal Bandgap Voltage
Reference (Nominally +2.5 V)
Noninverting Input to Reference
Amplifier. Voltage reference for
ADC is connected here.
External Connection for (0.1 F)
Reference Bypass Capacitor
No Connection Internally
Internal T/H placed in hold mode
(ADC is encoding) on rising edge.
Noninverting Input to T/H
Amplifier
Out-of-Range Condition Output.
Active high when analog input
exceeds input range of ADC by
1 LSB (<FS –1 LSB or >+FS
+ 1 LSB).
Output; TTL/CMOS Compatible
CMOS Compatible
Digital +5 V Power Supply
TTL/CMOSL Compatible
Output; TTL/CMOS Compatible
IN
N
t
N – 3
EH
t
A
t
t
PD
N + 1
EL
N – 2
#2
Figure 1. Timing Diagram
N – 1
#3
–4–
DIE LAYOUT AND MECHANICAL INFORMATION
Die Dimensions . . . . . . . . . . . . . . . . . 204
Pad Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Metalization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Aluminum
Backing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . None
Substrate Potential . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .–V
Transistor Count . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5,070
Passivation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Oxynitride
Die Attach (JN/JR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . Epoxy
Bond Wire (JN/JR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Gold
t
t
t
t
EL
A
EH
PD
PULSEWIDTH HIGH
PULSEWIDTH LOW
OUTPUT PROP DELAY
APERTURE DELAY
DGND
–V
D6
D5
V
D4
D3
D2
D7
S
D
ENCODE
BP
V
PDIP and SOIC Pinouts
V
GND
GND
GND
GND
–V
+V
OUT
+V
–V
REF
REF
A
NC
IN
S
S
S
S
MIN
7.5
10
10
NC = NO CONNECT
10
11
12
13
14
1
2
3
4
5
6
7
8
9
(Not to Scale)
AD9040A
TOP VIEW
10ns
TYP
1.9
MAX
100
100
12
28
27
26
25
24
23
22
21
20
19
18
17
16
15
D0 (LSB)
D1
D2
D3
D4
V
GND
–V
D5
D6
D7
D8
D9 (MSB)
OR
D
S
185
+V
ENCODE
BP
V
NC
V
GND
REF
OUT
S
REF
21 ( 1) mils
REV. B
4 mils
S