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ADS5122 Datasheet(PDF) 3 Page - Texas Instruments

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Part No. ADS5122
Description  8-Channel, 10-Bit, 65MSPS, 1.8V CMOS ANALOG-TO-DIGITAL CONVERTER
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Maker  TI [Texas Instruments]
Homepage  http://www.ti.com
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ADS5122 Datasheet(HTML) 3 Page - Texas Instruments

 
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ADS5122
3
SBAS272B
www.ti.com
ADS5122
DC CHARACTERISTICS
AVDD = DVDD = 1.8V, DRVDD = 3.3V, Clock = 65MSPS, 50% Clock Duty Cycle, –0.5dBFS Input Span, Internal Reference, IREFR = 4.42kΩ, TMIN = 0°C, TMAX = +70°C,
and typical values at TA = 25°C, unless otherwise noted.
PARAMETER
CONDITION
MIN
TYP
MAX
UNITS
RESOLUTION
10
Bits
DC ACCURACY
Differential Nonlinearity (DNL)
–0.9
±0.4
+1.0
LSB
Integral Nonlinearity (INL)
–2.5
±1.0
+2.5
LSB
No Missing Codes
Tested
Gain Error
External Reference
–1.0
0.1
+1.0
%FSR
Offset Error
External Reference
0.2
+2.5
%FSR
Gain Temperature Coefficient
6
ppm/
°C
Gain Matching
±0.7
%FSR
ANALOG INPUT
Input Voltage Range (AIN+, AIN–)
REFB
REFT
V
Input Voltage, Differential Full-Scale
1VPP
Input Common-Mode Range
(REFT + REFB) / 2
V
Input Resistance, RIN
fCLK = 65MSPS
20
k
Input Capacitance, CIN
5pF
INTERNAL REFERENCE VOLTAGES
Reference, Top (REFT)
1.30
1.35
1.42
V
Reference, Bottom (REFB)
0.76
0.82
0.87
V
Int Reference Temperature Coefficient
10
ppm/
°C
EXTERNAL REFERENCE GENERATION
Reference, Top (REFT)
1.15
1.25
1.35
V
Reference, Bottom (REFB)
0.65
0.75
0.85
V
Input Resistance, REFRIN
(between REFB and REFT)
80
POWER SUPPLY
fIN = 3.5MHz
Operating Supply Current, IDD
357
375
mA
Analog Operating Supply Current, IAVDD
226
245
mA
Digital Operating Supply Current, IDVDD
64
74
mA
Driver Operating Supply Current, IDRVDD
CL = 20pF, 3.3V
60
70
mA
CL = 20pF, 1.8V
31
40
mA
Operating Voltage
AVDD
1.65
1.8
2.0
V
DVDD
1.65
1.8
2.0
V
DRVDD
1.65
1.8
3.6
V
Power-Dissipation
DRVDD = 3.3V
733
800
mW
DRVDD = 1.8V
590
615
mW
Power Standby
CLK Running
68
mW
CLK Stopped
54
mW
PDREF = 1, External REF, CLK Running
14
18
mW
PDREF = 1, External REF, CLK Stopped
1.6
5
mW
Power-Supply Rejection Ratio, PSRR
±5%, AV
DD
5mV/V
ADS5122
DC CHARACTERISTICS
AVDD = DVDD = 1.8V, DRVDD = 3.3V, Clock = 65MSPS, 50% Clock Duty Cycle, –0.5dBFS Input Span, Internal Reference, and TMIN to TMAX, unless otherwise noted.
PARAMETER
CONDITION
MIN
TYP
MAX
UNITS
DIGITAL INPUTS (STBY A-H, PDREF, OE, CLK)
DRVDD = 3.3V/1.8V
High-Level Input Voltage, VIH
VIH = DRVDD
0.70 • DRVDD
V
Low-Level Input Voltage, VIL
VIL = 0V
0.25 • DRVDD
V
High-Level Input Current, IIH
±1
µA
Low-Level Input Current, IIL
±1
µA
DIGITAL INPUTS (DCASEL)
High-Level Input Voltage, VIH
VIH = DVDD
0.70 • DVDD
V
Low-Level Input Voltage, VIL
VIL = 0V
0.25 • DVDD
V
High-Level Input Current, IIH
±1
µA
Low-Level Input Current, IIL
±1
µA
DIGITAL OUTPUTS (DRVDD = 3.3/1.8V)
High-Level Output Voltage, VOH
IOH = –50µA
0.8 • DRVDD
V
Low-Level Output Voltage, VOL
IOL = 50µA
0.2 • DRVDD
V
External Load Capacitance, CL
15
pF
3-State Leakage Current, ILEAK
OE = HIGH
±1
µA


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