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reference designADS127L21B | Demoboard TIDA-010970

Texas Instruments ADS127L21B | Demoboard TIDA-010970

Low-noise, highly linear digital multimeter and data acquisition signal chain reference design

Overview

TopologyADC
IC revisionA

Description

The target application for this design includes digital multimeters (DMMs) that require ultra-high precision to measure dc signals. This design achieves effective dc accuracy using the ADS127L21B, a highperformance, 24-bit analog-to-digital converter (ADC) with effective linearity. An ultra-low drift buried Zener reference, REF81, calibrates the signal chain to eliminate gain and offset errors.

Typical applications

  • Multimeter

More information

Parts approved by Texas Instruments

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Order Code
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Product series
C
Tol. C
VR(V (DC))
Size
Operating Temperature
DF(%)
RISO
Ceramic Type
L(mm)
W(mm)
H(mm)
Fl(mm)
Packaging
Ti
Ø ID(mm)
Ø OD(mm)
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SamplesAvailability & Sample
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885012206095
SPECWCAP-CSGP MLCCs 50 V(DC), 100 nF, ±10%
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Downloads8 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWCAP-CSGP MLCCs 50 V(DC)
Capacitance100 nF
Capacitance±10% 
Rated Voltage50 V (DC)
Size0603 
Operating Temperature -55 °C up to +125 °C
Dissipation Factor3 %
Insulation Resistance5 GΩ
Ceramic TypeX7R Class II 
Length1.6 mm
Width0.8 mm
Height0.8 mm
Pad Dimension0.4 mm
Packaging7" Tape & Reel 
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Packaging Unit4000 
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9774050360R
SPECWA-SMSI SMT Steel Spacer with internal Thread M3, –, –
Simu­lation–
Availability
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Downloads7 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWA-SMSI SMT Steel Spacer with internal Thread M3
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Operating Temperature -55 °C up to +150 °C
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Length5 mm
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PackagingTape and Reel 
Inner ThreadM3 
Inner Diameter4.2 mm
Outer Diameter6 mm
Packaging Unit650 
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