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ADS7886SDBVR Datasheet(PDF) 3 Page - Texas Instruments

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No. de pieza ADS7886SDBVR
Descripción Electrónicos  12-Bit, 1-MSPS, MICRO-POWER, MINIATURE SAR ANALOG-TO-DIGITAL CONVERTERS
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Fabricante Electrónico  TI1 [Texas Instruments]
Página de inicio  http://www.ti.com
Logo TI1 - Texas Instruments

ADS7886SDBVR Datasheet(HTML) 3 Page - Texas Instruments

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ADS7886
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SLAS492A – SEPTEMBER 2005 – REVISED NOVEMBER 2009
ABSOLUTE MAXIMUM RATINGS
(1)
UNIT
+IN to AGND
–0.3 V to +VDD +0.3 V
+VDD to AGND
–0.3 V to 7 V
Digital input voltage to GND
–0.3 V to (7 V)
Digital output to GND
–0.3 V to (+VDD + 0.3 V)
Operating temperature range
–40°C to 125°C
Storage temperature range
–65°C to 150°C
Junction temperature (TJ Max)
150°C
Power dissipation, SOT23 and SC70 packages
(TJ Max–TA)/θJA
SOT23
295.2°C/W
θJA Thermal impedance
SC70
351.3°C/W
Vapor phase (60 sec)
215°C
Lead temperature, soldering
Infrared (15 sec)
220°C
(1)
Stresses above those listed under absolute maximum ratings may cause permanent damage to the device. Exposure to absolute
maximum conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
+VDD = 2.35 V to 5.25 V, TA = –40°C to 125°C, f(sample) = 1 MHz (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
ANALOG INPUT
Full-scale input voltage span(1)
0
VDD
V
Absolute input voltage range
+IN
–0.2
VDD+0.2
V
CI
Input capacitance(2)
21
pF
Ilkg
Input leakage current
TA = 125°C
40
nA
SYSTEM PERFORMANCE
Resolution
12
Bits
ADS7886SB
12
No missing codes
Bits
ADS7886S
11
ADS7886SB
–1.25
±0.65
1.25
INL
Integral nonlinearity
LSB(3)
ADS7886S
2
2
ADS7886SB
–1
+0.4/-0.65
1
DNL
Differential nonlinearity
LSB
ADS7886S
-2
2
VDD = 2.35 V to 3.6 V
–2.5
±0.5
2.5
EO
Offset error(4)
LSB
VDD = 4.75 V to 5.25 V
-2
±0.5
2
EG
Gain error
–1.75
±0.5
1.75
LSB
SAMPLING DYNAMICS
Conversion time
20-MHz SCLK
760
800
ns
Acquisition time
325
ns
Maximum throughput rate
20-MHz SCLK
1
MHz
Aperture delay
5
ns
Step Response
160
ns
Overvoltage recovery
160
ns
DYNAMIC CHARACTERISTICS
VDD = 2.35 V to 3.6 V, fI = 100 kHz
69
71.25
SNR
Signal-to-noise ratio
dB
VDD = 4.75 V to 5.25 V, fI = 100 kHz
70
72.25
(1)
Ideal input span; does not include gain or offset error.
(2)
See Figure 28 for details on the sampling circuit.
(3)
LSB means least significant bit.
(4)
Measured relative to an ideal full-scale input.
Copyright © 2005–2009, Texas Instruments Incorporated
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