Datasheet LTC2411, LTC2411-1 (Analog Devices)
| Hersteller | Analog Devices |
| Beschreibung | 24-Bit No Latency ∆Σ™ ADC with Differential Input and Reference in MSOP |
| Seiten / Seite | 42 / 1 — FEATURES. DESCRIPTION. 24-Bit ADC in an MS10 Package. Low Supply Current … |
| Dateiformat / Größe | PDF / 598 Kb |
| Dokumentensprache | Englisch |
FEATURES. DESCRIPTION. 24-Bit ADC in an MS10 Package. Low Supply Current (200µA in Conversion Mode. and 4µA in Autosleep Mode)
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LTC2411/LTC2411-1 24-Bit No Latency ∆Σ™ ADC with Differential Input and Reference in MSOP
FEATURES DESCRIPTION
n
24-Bit ADC in an MS10 Package
The LTC®2411/LTC2411-1 are 2.7V to 5.5V micropower n
Low Supply Current (200µA in Conversion Mode
24-bit differential ∆Σ analog-to-digital converters with
and 4µA in Autosleep Mode)
an integrated oscillator, 2ppm INL and 0.29ppm RMS n
Differential Input and Differential Reference with
noise. They use delta-sigma technology and provide single
GND to VCC Common Mode Range
cycle settling time for multiplexed applications. Through n
2ppm INL, No Missing Codes
a single pin, the LTC2411 can be configured for better n
4ppm Full-Scale Error and 1ppm Offset
than 110dB differential mode rejection at 50Hz or 60Hz n
0.29ppm Noise
±2%, and the LTC2411-1 can provide better than 87dB n
No Latency: Digital Filter Settles in a Single Cycle.
input differential mode rejection over the range of 49Hz
Each Conversion Is Accurate, Even After an
to 61.2Hz, or they can be driven by an external oscillator
Input Step
for a user-defined rejection frequency. The LTC2411 and n Single Supply 2.7V to 5.5V Operation LTC2411-1 are identical when driven by an external oscil- n Internal Oscillator—No External Components lator. The internal oscillator requires no external frequency Required setting components. n 110dB Min, Pin Selectable 50Hz/60Hz Notch Filter The converters accept any external differential reference (LTC2411) voltage from 0.1V to VCC for flexible ratiometric and re- n Simultaneous 50Hz/60Hz Rejection (LTC2411-1) mote sensing measurement configurations. The full-scale differential input range is from –0.5VREF to 0.5VREF. The
APPLICATIONS
reference common mode voltage, VREFCM, and the input common mode voltage, V n INCM, may be independently set Direct Sensor Digitizer anywhere within the GND to V n CC range of the LTC2411/ Weight Scales LTC2411-1. The DC common mode input rejection is n Direct Temperature Measurement better than 140dB. n Gas Analyzers n Strain Gauge Transducers The LTC2411/LTC2411-1 communicate through a flexible n Instrumentation 3-wire digital interface that is compatible with SPI and n Data Acquisition MICROWIRE protocols. n Industrial Process Control L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and No Latency ∆Σ is a trademark of Linear Technology Corporation. All other trademarks are the n 6-Digit DVMs property of their respective owners.
TYPICAL APPLICATION
2.7V TO 5.5V VCC 1µF 1µF VCC= INTERNAL OSC/50Hz REJECTION (LTC2411) 1 10 V = EXTERNAL CLOCK SOURCE CC FO = INTERNAL OSC/60Hz REJECTION (LTC2411) LTC2411/ = SIMULTANEOUS 50Hz/60Hz REJECTION (LTC2411-1) 2 1 LTC2411-1 REF+ VCC 9 SCK 2 REFERENCE BRIDGE REF+ 9 4 SCK 3-WIRE VOLTAGE IMPEDANCE IN+ LTC2411/ 8 SDO 3 100Ω TO 10kΩ 5 SPI 0.1V TO V REF– IN– LTC2411-1 CC INTERFACE 3-WIRE 7 CS 4 8 3 ANALOG INPUT RANGE REF– IN+ SDO SPI INTERFACE GND FO –0.5VREF TO 0.5VREF 5 6 10 IN– 7 CS 6 GND 2411 TA02 2411 TA01 2411fa For more information www.linear.com/LTC2411 1
FEATURES DESCRIPTION
n
24-Bit ADC in an MS10 Package
The LTC®2411/LTC2411-1 are 2.7V to 5.5V micropower n
Low Supply Current (200µA in Conversion Mode
24-bit differential ∆Σ analog-to-digital converters with
and 4µA in Autosleep Mode)
an integrated oscillator, 2ppm INL and 0.29ppm RMS n
Differential Input and Differential Reference with
noise. They use delta-sigma technology and provide single
GND to VCC Common Mode Range
cycle settling time for multiplexed applications. Through n
2ppm INL, No Missing Codes
a single pin, the LTC2411 can be configured for better n
4ppm Full-Scale Error and 1ppm Offset
than 110dB differential mode rejection at 50Hz or 60Hz n
0.29ppm Noise
±2%, and the LTC2411-1 can provide better than 87dB n
No Latency: Digital Filter Settles in a Single Cycle.
input differential mode rejection over the range of 49Hz
Each Conversion Is Accurate, Even After an
to 61.2Hz, or they can be driven by an external oscillator
Input Step
for a user-defined rejection frequency. The LTC2411 and n Single Supply 2.7V to 5.5V Operation LTC2411-1 are identical when driven by an external oscil- n Internal Oscillator—No External Components lator. The internal oscillator requires no external frequency Required setting components. n 110dB Min, Pin Selectable 50Hz/60Hz Notch Filter The converters accept any external differential reference (LTC2411) voltage from 0.1V to VCC for flexible ratiometric and re- n Simultaneous 50Hz/60Hz Rejection (LTC2411-1) mote sensing measurement configurations. The full-scale differential input range is from –0.5VREF to 0.5VREF. The
APPLICATIONS
reference common mode voltage, VREFCM, and the input common mode voltage, V n INCM, may be independently set Direct Sensor Digitizer anywhere within the GND to V n CC range of the LTC2411/ Weight Scales LTC2411-1. The DC common mode input rejection is n Direct Temperature Measurement better than 140dB. n Gas Analyzers n Strain Gauge Transducers The LTC2411/LTC2411-1 communicate through a flexible n Instrumentation 3-wire digital interface that is compatible with SPI and n Data Acquisition MICROWIRE protocols. n Industrial Process Control L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and No Latency ∆Σ is a trademark of Linear Technology Corporation. All other trademarks are the n 6-Digit DVMs property of their respective owners.
TYPICAL APPLICATION
2.7V TO 5.5V VCC 1µF 1µF VCC= INTERNAL OSC/50Hz REJECTION (LTC2411) 1 10 V = EXTERNAL CLOCK SOURCE CC FO = INTERNAL OSC/60Hz REJECTION (LTC2411) LTC2411/ = SIMULTANEOUS 50Hz/60Hz REJECTION (LTC2411-1) 2 1 LTC2411-1 REF+ VCC 9 SCK 2 REFERENCE BRIDGE REF+ 9 4 SCK 3-WIRE VOLTAGE IMPEDANCE IN+ LTC2411/ 8 SDO 3 100Ω TO 10kΩ 5 SPI 0.1V TO V REF– IN– LTC2411-1 CC INTERFACE 3-WIRE 7 CS 4 8 3 ANALOG INPUT RANGE REF– IN+ SDO SPI INTERFACE GND FO –0.5VREF TO 0.5VREF 5 6 10 IN– 7 CS 6 GND 2411 TA02 2411 TA01 2411fa For more information www.linear.com/LTC2411 1