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ADS1209SPWR Datasheet(PDF) 4 Page - Texas Instruments

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No. de pieza ADS1209SPWR
Descripción Electrónicos  Two 1-Bit, 10MHz, 2nd-Order Delta-Sigma Modulators
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Fabricante Electrónico  TI [Texas Instruments]
Página de inicio  http://www.ti.com
Logo TI - Texas Instruments

ADS1209SPWR Datasheet(HTML) 4 Page - Texas Instruments

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ADS1209
SBAS491 – FEBRUARY 2010
www.ti.com
ELECTRICAL CHARACTERISTICS (continued)
Over operating ambient temperature range of –40°C to +105°C, AVDD = 5V, BVDD = 3V, CHx+ = 0.2V to 4.8V, CHx– =
2.5V, VREFIN = VREFOUT = 2.5V (internal), CLKIN = 20MHz, and 16-bit Sinc
3 filter with OSR = 256, unless otherwise noted.
ADS1209
PARAMETER
TEST CONDITIONS
MIN
TYP(1)
MAX
UNIT
SAMPLING DYNAMICS
CLKSEL = 1, –40°C
≤ TA ≤ +85°C
8
10
12
MHz
fCLK
Internal clock frequency
CLKSEL = 1,
7.8
10
12
MHz
–40°C
≤ TA ≤ +105°C
fCLKIN
External clock frequency
CLKSEL = 0
1
20
24
MHz
AC ACCURACY
THD
Total harmonic distortion
VIN = ±2.3VPP at 5kHz
–85
–80
dB
SFDR
Spurious-free dynamic range
VIN = ±2.3VPP at 5kHz
82
86
dB
VIN = ±2.3VPP at 5kHz
86
90
dB
SNR
Signal-to-noise ratio
VIN = ±2.0VPP at 5kHz
85
89
dB
SINAD
Signal-to-noise + distortion
VIN = ±2.3VPP at 5kHz
80
84
dB
Channel-to-channel isolation
VIN = ±2.3VPP at 5kHz
100
dB
REFERENCE VOLTAGE OUTPUT
VREFOUT
Reference output voltage
2.450
2.5
2.550
V
TCVREFOUT
Reference output voltage drift
±20
ppm/°C
f = 0.1Hz to 10Hz, CL = 10mF
10
mVRMS
Output voltage noise
f = 10Hz to 10kHz, CL = 10mF
12
mVRMS
IREFOUT
Output current
10
mA
IREFSC
Short-circuit current
0.5
mA
Turn-on settling time
To accuracy level of 0.1%, no load
100
ms
REFERENCE VOLTAGE INPUT
VREFIN
Input voltage
0.5
2.5
2.6
V
RREFIN
Input resistance
100
M
CREFIN
Input capacitance
5
pF
IREFIN
Input current
1
mA
DIGITAL INPUTS
Logic family
CMOS with Schmitt Trigger
VIH
High-level input voltage
0.7 × BVDD
BVDD + 0.3
V
VIL
Low-level input voltage
–0.3
0.3 × BVDD
V
IIN
Input current
VIN = BVDD or BGND
±50
nA
CI
Input capacitance
5
pF
DIGITAL OUTPUTS
Logic family
CMOS
VOH
High-level output voltage
BVDD = 4.5V, IOH = –100mA
4.44
V
VOL
Low-level output voltage
BVDD = 4.5V, IOL = +100mA
0.5
V
CO
Output capacitance
5
pF
CL
Load capacitance
30
pF
Data format
Bit stream
4
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Copyright © 2010, Texas Instruments Incorporated
Product Folder Link(s): ADS1209


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