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ADS6445MRGCTEP Datasheet(PDF) 6 Page - Texas Instruments

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Part # ADS6445MRGCTEP
Description  QUAD CHANNEL, 14 BIT, 125/105 MSPS ADC WITH SERIAL LVDS OUTPUTS
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

ADS6445MRGCTEP Datasheet(HTML) 6 Page - Texas Instruments

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ADS6445-EP
ADS6444-EP
SLAS573C – FEBRUARY 2008 – REVISED MAY 2013
www.ti.com
ELECTRICAL CHARACTERISTICS
Typical values are at 25°C, min and max values are across the full junction temperature range TJ,MIN = –55°C to TJ,MAX =
125°C, AVDD = LVDD = 3.3 V, maximum rated sampling frequency, 50% clock duty cycle, –1 dBFS differential analog input,
internal reference mode (unless otherwise noted).
ADS6445
ADS6444
UNIT
Fs = 125 MSPS
Fs = 105 MSPS
PARAMETER
MIN
TYP
MAX
MIN
TYP
MAX
RESOLUTION
14
14
Bits
ANALOG INPUT
Differential input voltage range
2.0
2.0
VPP
Differential input capacitance
7
7
pF
Analog input bandwidth
500
500
MHz
Analog input common mode current (per input pin
155
130
μA
of each ADC)
REFERENCE VOLTAGES
VREFB
Internal reference bottom voltage
1.0
1.0
V
VREFT
Internal reference top voltage
2.0
2.0
V
ΔVREF
Internal reference error (VREFT–VREFB)
0.985
1
1.015
0.985
1
1.015
V
VCM
Common mode output voltage
1.5
1.5
V
VCM output current capability
±4
±4
mA
DC ACCURACY
No missing codes
Assured
Assured
EO
Offset error, across devices and across channels
–15
±2
15
–15
±2
15
mV
within a device
Offset error temperature coefficient, across
0.05
0.05
mV/°C
devices and across channels within a device
There are two sources of gain error - internal reference inaccuracy and channel gain error
EGREF
Gain error due to internal reference inaccuracy
-0.75
0.1
0.75
-0.75
0.1
0.75
% FS
alone, (
ΔVREF /2.0) %
Reference gain error temperature coefficient
0.0125
0.0125
Δ%/°C
EGCHAN
Gain error of channel alone, across devices and
±0.3
±0.3
% FS
across channels within a device
Channel gain error temperature coefficient, across
0.005
0.005
Δ%/°C
devices and across channels within a device
DNL
Differential nonlinearity, Fin = 50 MHz
–0.99
±0.6
2.0
–0.99
±0.6
2.0
LSB
INL
Integral nonlinearity, Fin = 50 MHz
-5
±3
5
-5
±3
5
LSB
PSRR
DC power supply rejection ratio
0.5
0.5
mV/V
POWER SUPPLY
ICC
Total supply current
502
410
mA
IAVDD
Analog supply current
410
322
mA
ILVDD
LVDS supply current
92
88
mA
Total power
1.65
1.8
1.35
1.5
W
Power down (with input clock stopped)
77
150
77
150
mW
6
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Copyright © 2008–2013, Texas Instruments Incorporated
Product Folder Links: ADS6445-EP ADS6444-EP


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