AD9057-60 AD [Analog Devices], AD9057-60 Datasheet - Page 4

• Manufacturer Part Number: AD9057-60
• Description: 8-Bit 40 MSPS/60 MSPS/80 MSPS A/D Converter
• Manufacturer: AD [Analog Devices]

AD9057
ABSOLUTE MAXIMUM RATINGS
V
Analog Inputs . . . . . . . . . . . . . . . . . . . . –0.5 V to V
Digital Inputs . . . . . . . . . . . . . . . . . . . . –0.5 V to V
V
Digital Output Current . . . . . . . . . . . . . . . . . . . . . . . . 20 mA
Operating Temperature . . . . . . . . . . . . . . . –55 C to +125 C
Storage Temperature . . . . . . . . . . . . . . . . . –65 C to +150 C
Maximum Junction Temperature . . . . . . . . . . . . . . . . +175 C
Maximum Case Temperature . . . . . . . . . . . . . . . . . . +150 C
Model
AD9057BRS–40, –60, –80 –40 C to +85 C RS-20
AD9057/PCB
*RS = Shrink Small Outline (SSOP).
Analog Input
3.0 V
2.502 V
2.498 V
2.0
CAUTION
ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily
accumulate on the human body and test equipment and can discharge without detection.
Although the AD9057 features proprietary ESD protection circuitry, permanent damage may
occur on devices subjected to high energy electrostatic discharges. Therefore, proper ESD
precautions are recommended to avoid performance degradation or loss of functionality.
D
REF
, V
Input . . . . . . . . . . . . . . . . . . . . . . . –0.5 V to V
DD
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +7 V
Table I. Digital Coding (VREF = +2.5 V)
Voltage Level
Positive Full Scale
Midscale +1/2 LSB
Midscale –1/2 LSB
Negative Full Scale
ORDERING GUIDE
Temperature
Range
+25 C
Package Option*
Evaluation Board
Digital Output
1111 1111
1000 0000
0000 0000
0111 1111
DD
D
D
+ 0.5 V
+ 0.5 V
+ 0.5 V
–4–
Pin No.
1
2
3
4, 9, 16
5, 8
6
7
10
11–14, 17–20
15
Name
PWRDN
VREF OUT
VREF IN
GND
V
BIAS OUT
AIN
ENCODE
D7–D4, D3–D0
V
VREF OUT
D
DD
BIAS OUT
ENCODE
VREF IN
PWRDN
PIN CONFIGURATION
PIN DESCRIPTIONS
GND
GND
AIN
V
V
D
D
10
1
2
3
4
5
6
7
8
9
(Not to Scale)
TOP VIEW
AD9057
Function
Power-Down Function Select;
Logic HIGH for Power-Down
Mode (Digital Outputs Go to
High Impedance State).
Internal Reference Output
(+2.5 V typ); Bypass with
0.1 F to Ground.
Reference Input for ADC (+2.5
V typ, 10%).
Ground (Analog/Digital).
Analog +5 V Power Supply.
Bias Pin for AC Coupling
(1 k to REF IN).
Analog Input for ADC.
Encode Clock for ADC (ADC
Samples on Rising Edge of
ENCODE).
Digital Outputs of ADC.
Digital Output Power Supply.
Nominally +3 V to +5
WARNING!
20
19
18
16
15
14
13
12
17
11
D0 (LSB)
D1
D2
D3
GND
V
D4
D5
D6
D7 (MSB)
DD
ESD SENSITIVE DEVICE
V.
REV. B