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ADS41B49 bảng dữ liệu(PDF) 6 Page - Texas Instruments

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Giải thích chi tiết về linh kiện  14-/12-Bit, 250MSPS, Ultralow-Power ADC with Analog Buffers
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ADS41B49 bảng dữ liệu(HTML) 6 Page - Texas Instruments

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ADS41B29
ADS41B49
SBAS486E – NOVEMBER 2009 – REVISED JULY 2012
www.ti.com
DIGITAL CHARACTERISTICS
Typical values are at +25°C, AVDD = 1.8V, AVDD_BUF = 3.3V, and DRVDD = 1.8V, unless otherwise noted. Minimum and
maximum values are across the full temperature range: TMIN = –40°C to TMAX = +85°C, AVDD = 1.8V, AVDD_BUF = 3.3V,
and DRVDD = 1.8V.
ADS41B29, ADS41B49
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
DIGITAL INPUTS (RESET, SCLK, SDATA, SEN, OE)
High-level input voltage
RESET, SCLK, SDATA, and
1.3
V
SEN support 1.8V and 3.3V
Low-level input voltage
0.4
V
CMOS logic levels
High-level input voltage
1.3
V
OE only supports 1.8V CMOS
logic levels
Low-level input voltage
0.4
V
High-level input current: SDATA, SCLK(1)
VHIGH = 1.8V
10
µA
High-level input current: SEN(2)
VHIGH = 1.8V
0
µA
Low-level input current: SDATA, SCLK
VLOW = 0V
0
µA
Low-level input current: SEN
VLOW = 0V
–10
µA
DIGITAL OUTPUTS (CMOS INTERFACE: D0 TO D13, OVR_SDOUT)
High-level output voltage
DRVDD – 0.1
DRVDD
V
Low-level output voltage
0
0.1
V
DIGITAL OUTPUTS (LVDS INTERFACE: D0_D1_P/M to D12_D13_P/M, CLKOUTP/M)
High-level output voltage(3)
VODH
Standard swing LVDS
270
+350
430
mV
Low-level output voltage(3)
VODL
Standard swing LVDS
–430
–350
–270
mV
High-level output voltage(3)
VODH
Low swing LVDS
+200
mV
Low-level output voltage(3)
VODL
Low swing LVDS
–200
mV
Output common-mode voltage
VOCM
0.85
1.05
1.25
V
(1)
SDATA and SCLK have an internal 180k
Ω pull-down resistor.
(2)
SEN has an internal 180k
Ω pull-up resistor to AVDD.
(3)
With an external 100
Ω termination.
THERMAL INFORMATION
ADS41B29,
ADS41B49
THERMAL METRIC(1)
UNITS
RGZ
48 PINS
θJA
Junction-to-ambient thermal resistance
27.9
θJCtop
Junction-to-case (top) thermal resistance
15.1
θJB
Junction-to-board thermal resistance
5.4
°C/W
ψJT
Junction-to-top characterization parameter
0.3
ψJB
Junction-to-board characterization parameter
5.4
θJCbot
Junction-to-case (bottom) thermal resistance
1.7
(1)
For more information about traditional and new thermal metrics, see the IC Package Thermal Metrics application report, SPRA953.
6
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Copyright © 2009–2012, Texas Instruments Incorporated
Product Folder Link(s): ADS41B29 ADS41B49


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