ISL12022M-R5421 INTERSIL [Intersil Corporation], ISL12022M-R5421 Datasheet - Page 27

• Manufacturer Part Number: ISL12022M-R5421
• Description: Providing high-performance solutions for every link in the signal chain
• Manufacturer: INTERSIL [Intersil Corporation]

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24-bit Delta-Sigma
Industry-Leading
Noise Performance
Up to 4000SPS
with Full Firmware
Programmability
• Best-in-Class Performance
• Lowest Noise over 2.5SPS-4000SPS
• Low Noise PGA with Buffer
• Simultaneous 50/60 Hz Noise Rejection
• 2 & 4 Ch Differential Input Multiplexer
• Low Power
• SPI Compatible Serial Interface
• 24 / 28 Pin TSSOP Package
• Extended Industrial Temp Range (-40ºC - 105ºC)
• Robust ESD Rating - 8kV HBM
Easy to Use ADC
with Excellent Noise
Performance at
Low Cost
• Drop-In Compatible with ADS1232/34
• 10SPS, 80SPS Operation
• Best in Class Performance – 21.6 Bits noise-free
• Low Noise PGA with Buffer
• Simultaneous 50/60 Hz Noise Rejection
• 2 & 4 Channel, Differential-input Multiplexer
• All Functions Pin-programmed
• Low Power: 53mW (max), 1µA in Shutdown mode
• Easy-to-Use SPI-compatible Serial Interface
• 24 / 28 Pin TSSOP Package
• Extended Industrial Temp Range (-40ºC - 105ºC)
• Robust ESD Rating – 7.5kV HBM
• Samples and Evaluation Board available
Key Features
Key Features
- Just 5.6nV/√Hz at 1Hz
- AVDD Monitor, Onboard Temperature Sensor
- 5V Analog, 5.5V / 2.7V Digital Supplies
- 50mW power dissipation, 1µA Shutdown mode
- Low Side Power Switch manages Load Cell Power
- Access to Calibration Registers
- Improved Performance with no change in
(Gain = 1)
- 5V Analog, 5.5V / 2.7V Digital Supplies
circuitry
Evalboard
Evalboard
Available!
Available!
1000
100
ISL26104
0.1
10
Only
1
ISL26134
0.1
Low Noise
Highly Integrated
Low Noise
Highly Integrated
Only
• At 10SPS, 128x Gain ISL26134 noise is 5.6nV/√Hz
• Competitor A shows 10.2nV/√Hz
100000
AIN1+
AIN1-
AIN2+
AIN2-
AIN3+
AIN3-
AIN4+
AIN4-
LSPS
ISL26134 128X Gain
10000
1000
AIN1+
AIN1-
AIN2+
AIN2-
AIN3+
AIN3-
AIN4+
AIN4-
100
AGND
AVDD
10
1
0.1
Noise Spectral Density, 80SPS, PGA Gain = 1
Frequency (Hz)
ISL26132, ISL26134
Intersil Signal Path Products  2012  www.intersil.com
Multiplexer
A0
Input
ISL26102, ISL26104
INPUT
A1/TEMP
MUX
AGND
10
AVDD
Temp Sensor
1, 2, 4, 8,16,
GAIN0
On-Chip
32, 64, 128
1x/2x/64x/
128x
PGA
PGA
1
GAIN1
Frequency (Hz)
24-bit ADCs: ISL26102, ISL26104
24-bit ADCs: ISL26132, ISL26134
100
CAP
CAP
CAP
CAP
1000
100
DGND
0.1
10
DGND
1
0.1
INTERNAL
DGND
CLOCK
Internal Clock
VREF+
10
Competitor A 128X Gain
ADC
∆∑
VREF+
DVDD
VREF-
OSCILLATOR
EXTERNAL
VREF-
ADC
1
ΔΣ
Frequency (Hz)
DVDD
DGND
DGND
DVDD
Oscillator
External
DGND
DGND
100
10
XTALIN/CLOCK
PWDN
XTALOUT
SDO/RDY
SCLK
SPEED
PWDN
SDO/RDY
SDI
SCLK
XTALIN/
CLOCK
XTALOUT
CS
100
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