|
|
PDF ISL26132 Data sheet ( Hoja de datos )
| Número de pieza | ISL26132 | |
| Descripción | (ISL26132 / ISL26134) Low-Noise 24-bit Delta Sigma ADC | |
| Fabricantes | Intersil | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de ISL26132 (archivo pdf) en la parte inferior de esta página. Total 23 Páginas | ||
|
No Preview Available !
www.DataSheet.co.kr
Low-Noise 24-bit Delta Sigma ADC
ISL26132, ISL26134
The ISL26132 and ISL26134 are complete analog front ends
for high resolution measurement applications. These 24-bit
Delta-Sigma Analog-to-Digital Converters include a very
low-noise amplifier and are available as either two or four
differential multiplexer inputs. The devices offer the same
pinout as the ADS1232 and ADS1234 devices and are
functionally compatible with these devices. The ISL26132 and
ISL26134 offer improved noise performance at 10Sps and
80Sps conversion rates.
The on-chip low-noise programmable-gain amplifier provides
gains of 1x/2x/64x/128x. The 128x gain setting provides an
input range of ±9.766mVFS when using a 2.5V reference. The
high input impedance allows direct connection of sensors such
as load cell bridges to ensure the specified measurement
accuracy without additional circuitry. The inputs accept signals
100mV outside the supply rails when the device is set for unity
gain.
The Delta-Sigma ADC features a third order modulator
providing up to 21.6-bit noise-free performance.
The device can be operated from an external clock source,
crystal (4.9152MHz typical), or the on-chip oscillator.
The two channel ISL26132 is available in a 24 Ld TSSOP
package and the four channel ISL26134 is available in a 28 Ld
TSSOP package. Both are specified for operation over the
automotive temperature range (-40°C to +105°C).
Features
• Up to 21.6 Noise-free bits.
• Low Noise Amplifier with Gains of 1x/2x/64x/128x
• RMS noise: 10.2nV @ 10Sps (PGA = 128x)
• Linearity Error: 0.0002% FS
• Simultaneous rejection of 50Hz and 60Hz (@ 10Sps)
• Two (ISL26132) or four (ISL26134) channel differential
input multiplexer
• On-chip temperature sensor (ISL26132)
• Automatic clock source detection
• Simple interface to read conversions
• +5V Analog, +5 to +2.7V Digital Supplies
• Pb-Free (RoHS Compliant)
• TSSOP packages: ISL26132, 24 pin; ISL26134, 28 pin
Applications
• Weigh Scales
• Temperature Monitors and Controls
• Industrial Process Control
• Pressure Sensors
AVDD
CAP
DVDD
INTERNAL
CLOCK
EXTERNAL
OSCILLATOR
XTALIN/CLOCK
XTALOUT
AIN1+
AIN1-
AIN2+
AIN2-
AIN3+
AIN3-
ISL26134
Only AIN4+
AIN4-
INPUT
MULTIPLEXER
PGA
1x/2x/64x/
128x
ADC
SDO/RDY
SCLK
PWDN
SPEED
A0 A1/TEMP AGND GAIN0 GAIN1
CAP DGND
VREF+
VREF-
NOTE for A1/TEMP pin: Functions as A1 on ISL26134; Functions as TEMP on ISL26132
FIGURE 1. BLOCK DIAGRAM
DGND DGND
September 9, 2011
FN6954.1
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774 |Copyright Intersil Americas Inc. 2011. All Rights Reserved
Intersil (and design) is a trademark owned by Intersil Corporation or one of its subsidiaries.
All other trademarks mentioned are the property of their respective owners.
Datasheet pdf - http://www.DataSheet4U.net/
1 page  
www.DataSheet.co.kr
ISL26132, ISL26134
Absolute Maximum Ratings
AGND to DGND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +0.3V
Analog In to AGND. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3 to AVDD+0.3V
Digital In to DGND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3 to DVDD+0.3V
Input Current
Momentary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100mA
Continuous . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10mA
ESD Rating
Human Body Model (Per MIL-STD-883 Method 3015.7) . . . . . . . . . . . . .7.5kV
Machine Model (Per JESD22-A115). . . . . . . . . . . . . . . . . . . . . . . . . . 450V
Charged Device Model (Per JESD22-C101) . . . . . . . . . . . . . . . . . . . . . . . . 2kV
Latch-up (Per JEDEC JESD-78B; Class 2, Level A)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100mA @ Room and Hot (+105°C)
Thermal Information
Thermal Resistance (Typical)
θJA (°C/W) θJC (°C/W)
24 Ld TSSOP (Notes 4, 5) . . . . . . . . . . . . . .
65
18
28 Ld TSSOP (Notes 4, 5) . . . . . . . . . . . . . .
63
18
Maximum Power Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80mW
Maximum Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . .+150°C
Maximum Storage Temperature Range . . . . . . . . . . . . . .-65°C to +150°C
Pb-Free Reflow Profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . see link below
http://www.intersil.com/pbfree/Pb-FreeReflow.asp
Operating Conditions
Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .-40°C to +105°C
AVDD to AGND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4.75V to 5.25V
DVDD to DGND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.7V to 5.25V
CAUTION: Do not operate at or near the maximum ratings listed for extended periods of time. Exposure to such conditions may adversely impact product
reliability and result in failures not covered by warranty.
NOTES:
4. θJA is measured with the component mounted on a high effective thermal conductivity test board in free air. See Tech Brief TB379 for details.
5. For θJC, the “case temp” location is taken at the package top center.
Electrical Specifications VREF+ = 5V, VREF- = 0V, AVDD = 5V, DVDD = 5V, AGND = DGND = 0V, MCLK = 4.9152MHz, and
TA = -40°C to +105°C, unless otherwise specified. Boldface limits apply over the operating temperature range, -40°C to +105°C
SYMBOL
PARAMETER
TEST LEVEL or NOTES
MIN MAX
(Note 6) TYP (Note 6)
UNITS
ANALOG INPUTS
Differential Input Voltage Range
±0.5VREF/
Gain
V
Common Mode Input Voltage
Range
Gain = 1, 2
Gain = 64, 128
Gain = 1
AGND - 0.1
AGND+1.5
AVDD + 0.1
AVDD - 1.5
±20
V
V
nA
Differential Input Current
Gain = 2
±40 nA
Gain = 64, 128
±1 nA
SYSTEM PERFORMANCE
Resolution
No Missing Codes
24
Bits
Internal Osc. SPEED = High
80 SPS
Data Rate
Internal Osc. SPEED = Low
External Osc. SPEED = High
10
fCLK/61440
SPS
SPS
External Osc. SPEED = Low
fCLK/49152
0
SPS
Digital Filter Settling Time
Full Setting
4 Conversions
INL Integral Nonlinearity
Differential Input Gain = 1, 2
±0.0002
±0.001 % of FSR (Note 7)
Differential Input Gain = 64, 128
±0.0004
% of FSR
(Note 7)
Input Offset Error
Gain = 1
±0.4
ppm of FS
Gain = 128
±1.5
ppm of FS
Input Offset Drift
Gain = 1
0.3 µV/°C
Gain = 128
10 nV/°C
Gain Error (Note 8)
Gain = 1
±0.007
±0.02
%
Gain = 128
±0.02
%
Gain Drift
Gain = 1
0.5 ppm/°C
Gain = 128
7 ppm/°C
5 FN6954.1
September 9, 2011
Datasheet pdf - http://www.DataSheet4U.net/
5 Page 
www.DataSheet.co.kr
ISL26132, ISL26134
Typical Characteristics (Continued)
11.0
10.8
WORD RATE = 10Sps
10.6
10.4
10000
GAIN = 1, 80Sps
64k FFT
25 AVERAGES
1000
10.2
10.0
100
9.8
9.6
-40
-10 20 50
TEMPERATURE (°C)
80
FIGURE 20. TYPICAL WORD RATE vs TEMPERATURE USING
INTERNAL OSCILLATOR
110
10
0.01
0.1 1
FREQUENCY (Hz)
10
FIGURE 21. NOISE DENSITY vs FREQUENCY AT GAIN = 1, 80Sps
100
GAIN = 128, 80Sps
64k FFT
25 AVERAGES
10
1
0.01
0.1 1
FREQUENCY (Hz)
10
FIGURE 22. NOISE DENSITY vs FREQUENCY AT GAIN = 128, 80Sps
11
FN6954.1
September 9, 2011
Datasheet pdf - http://www.DataSheet4U.net/
11 Page | ||
| Páginas | Total 23 Páginas | |
| PDF Descargar | [ Datasheet ISL26132.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| ISL26132 | (ISL26132 / ISL26134) Low-Noise 24-bit Delta Sigma ADC | Intersil |
| ISL26134 | (ISL26132 / ISL26134) Low-Noise 24-bit Delta Sigma ADC | Intersil |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |