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ADS7947SRTER Datasheet(PDF) 8 Page - Texas Instruments

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Part # ADS7947SRTER
Description  12/10/8-Bit, 2MSPS, Dual-Channel, Unipolar, Pseudo-Differential, Ultralow-Power SAR Analog-to-Digital Converters
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

ADS7947SRTER Datasheet(HTML) 8 Page - Texas Instruments

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ADS7947
ADS7948
ADS7949
SLAS708 – SEPTEMBER 2010
www.ti.com
ELECTRICAL CHARACTERISTICS: ADS7949 (8-Bit) (continued)
Minimum/maximum specifications at AVDD = 2.7V to 5.5V, DVDD = 1.65V to AVDD, TA = –40°C to +125°C, and
fSAMPLE = 2MSPS, unless otherwise noted. Typical specifications at AVDD = 3V, DVDD = 1.8V, TA = +25°C, and fSAMPLE =
2MSPS.
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNITS
POWER-SUPPLY REQUIREMENTS
AVDD
2.7
3.3
5.5
V
DVDD
1.65
3.3
AVDD
V
AVDD = 3.3V, fSAMPLE = 2MSPS
2.5
mA
IDYNAMIC
AVDD = 5V, fSAMPLE = 2MSPS
3
3.5
mA
AVDD supply current
AVDD = 3.3V, SCLK off
1.8
mA
ISTATIC
AVDD = 5V, SCLK off
1.9
2.5
mA
DVDD = 3.3V, SCLK = 34MHz,
500
µA
DVDD supply current(6)
SDO load 20pF
IPD-DYNAMIC
SCLK = 34MHz
550
µA
Power-down state
AVDD supply current
IPD-STATIC
SCLK off
2.5
µA
Power-up time
1
µs
TEMPERATURE RANGE
Specified performance
–40
+125
°C
(6)
DVDD consumes only dynamic current. IDVDD = CLOAD × DVDD × number of 0→1 transitions in SDO × fSAMPLE. This is a
load-dependent current and there is no DVDD current when the output is not toggling.
8
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Copyright © 2010, Texas Instruments Incorporated
Product Folder Link(s): ADS7947 ADS7948 ADS7949


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