Datasheet LTC2433-1 (Analog Devices)
| Manufacturer | Analog Devices |
| Description | Differential Input 16-Bit No Latency Delta Sigma ADC |
| Pages / Page | 28 / 1 — FEATURES. DESCRIPTIO. 16-Bit Differential ADC in a Tiny MSOP. Low Supply … |
| File Format / Size | PDF / 306 Kb |
| Document Language | English |
FEATURES. DESCRIPTIO. 16-Bit Differential ADC in a Tiny MSOP. Low Supply Current: 200. A, 4. A in Autosleep
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LTC2433-1 Differential Input 16-Bit No Latency ∆Σ ADC
U FEATURES DESCRIPTIO
■
16-Bit Differential ADC in a Tiny MSOP
The LTC®2433-1 is a differential input micropower 16-bit ■
Low Supply Current: 200
µ
A, 4
µ
A in Autosleep
No Latency ∆ΣTM analog-to-digital converter with an inte- ■
Rail-to-Rail Differential Input/Reference
grated oscillator. It provides 0.12LSB INL and 1.45µV ■
0.12LSB INL, No Missing Codes
RMS noise independent of VREF. It uses delta-sigma ■
0.16LSB Full-Scale Error and 5
µ
V Offset
technology and provides single conversion settling of the ■
1.45
µ
V RMS Noise, Independent of V
digital filter. Through a single pin, the LTC2433-1 can be
REF
■
Very Low Transition Noise: <0.02LSB
configured for better than 87dB input differential mode ■ Operates with a Reference as Low as 100mV with rejection at 50Hz and 60Hz ±2%, or it can be driven by an 16-Bit Resolution external oscillator for a user defined rejection frequency. ■ Internal Oscillator—No External Components The internal oscillator requires no external frequency Required setting components. ■ 87dB Min, Simultaneous 50Hz and 60Hz Notch Filter The converter accepts any external differential reference ■ Single Supply 2.7V to 5.5V Operation voltage from 0.1V to VCC for flexible ratiometric and ■ Pin Compatible with the 20/24-Bit LTC2431/LTC2411 remote sensing measurement configurations. The full- ■ Available in 10-Lead MSOP Package scale differential input range is from – 0.5 •␣ VREF to 0.5 •
U
VREF. The reference common mode voltage, VREFCM, and
APPLICATIO S
the input common mode voltage, VINCM, may be indepen- ■ dently set anywhere between GND and V Direct Sensor Digitizer CC. The DC ■ Weight Scales common mode input rejection is better than 140dB. ■ Direct Temperature Measurement The LTC2433-1 communicates through a flexible 3-wire ■ Gas Analyzers digital interface which is compatible with SPI and ■ Strain-Gage Transducers MICROWIRETM protocols. ■ Instrumentation , LTC and LT are registered trademarks of Linear Technology Corporation. ■ Data Acquisition No Latency ∆Σ is a trademark of Linear Technology Corporation. MICROWIRE is a trademark of National Semiconductor Corporation. ■ Industrial Process Control
U TYPICAL APPLICATIO Minimum Resolvable Signal vs VREF
90 5V REF 80 µV)* 1µF = EXTERNAL CLOCK SOURCE 70 1 10 4.9k VCC FO = INTERNAL OSC/SIMULTANEOUS 60 (100mV) 2 50Hz/60Hz REJECTION REF+ 4 50 100Ω IN+ LTC2433-1 40 5 9 IN– SCK 30 3 8 3-WIRE REF– 20 SDO SPI INTERFACE 6 7 10 GND CS MINIMUM RESOLVABLE SIGNAL ( 24331 TA01 0 0 1 2 3 4 5 VREF (V) 24331 TA02 *FOR VREF ≥ 0.5V THE RESOLUTION IS LIMITED BY STEP SIZE 24331fa 1
U FEATURES DESCRIPTIO
■
16-Bit Differential ADC in a Tiny MSOP
The LTC®2433-1 is a differential input micropower 16-bit ■
Low Supply Current: 200
µ
A, 4
µ
A in Autosleep
No Latency ∆ΣTM analog-to-digital converter with an inte- ■
Rail-to-Rail Differential Input/Reference
grated oscillator. It provides 0.12LSB INL and 1.45µV ■
0.12LSB INL, No Missing Codes
RMS noise independent of VREF. It uses delta-sigma ■
0.16LSB Full-Scale Error and 5
µ
V Offset
technology and provides single conversion settling of the ■
1.45
µ
V RMS Noise, Independent of V
digital filter. Through a single pin, the LTC2433-1 can be
REF
■
Very Low Transition Noise: <0.02LSB
configured for better than 87dB input differential mode ■ Operates with a Reference as Low as 100mV with rejection at 50Hz and 60Hz ±2%, or it can be driven by an 16-Bit Resolution external oscillator for a user defined rejection frequency. ■ Internal Oscillator—No External Components The internal oscillator requires no external frequency Required setting components. ■ 87dB Min, Simultaneous 50Hz and 60Hz Notch Filter The converter accepts any external differential reference ■ Single Supply 2.7V to 5.5V Operation voltage from 0.1V to VCC for flexible ratiometric and ■ Pin Compatible with the 20/24-Bit LTC2431/LTC2411 remote sensing measurement configurations. The full- ■ Available in 10-Lead MSOP Package scale differential input range is from – 0.5 •␣ VREF to 0.5 •
U
VREF. The reference common mode voltage, VREFCM, and
APPLICATIO S
the input common mode voltage, VINCM, may be indepen- ■ dently set anywhere between GND and V Direct Sensor Digitizer CC. The DC ■ Weight Scales common mode input rejection is better than 140dB. ■ Direct Temperature Measurement The LTC2433-1 communicates through a flexible 3-wire ■ Gas Analyzers digital interface which is compatible with SPI and ■ Strain-Gage Transducers MICROWIRETM protocols. ■ Instrumentation , LTC and LT are registered trademarks of Linear Technology Corporation. ■ Data Acquisition No Latency ∆Σ is a trademark of Linear Technology Corporation. MICROWIRE is a trademark of National Semiconductor Corporation. ■ Industrial Process Control
U TYPICAL APPLICATIO Minimum Resolvable Signal vs VREF
90 5V REF 80 µV)* 1µF = EXTERNAL CLOCK SOURCE 70 1 10 4.9k VCC FO = INTERNAL OSC/SIMULTANEOUS 60 (100mV) 2 50Hz/60Hz REJECTION REF+ 4 50 100Ω IN+ LTC2433-1 40 5 9 IN– SCK 30 3 8 3-WIRE REF– 20 SDO SPI INTERFACE 6 7 10 GND CS MINIMUM RESOLVABLE SIGNAL ( 24331 TA01 0 0 1 2 3 4 5 VREF (V) 24331 TA02 *FOR VREF ≥ 0.5V THE RESOLUTION IS LIMITED BY STEP SIZE 24331fa 1
