IC manufacturers Texas Instruments

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Texas Instruments OPA837 | Demoboard TIDA-01055

ADC Voltage Reference Buffer Optimization Reference Design for High Performance DAQ Systems

Overview

TopologyOther Topology
IC revisionE1

Description

The TIDA-01055 reference design for high performance DAQ Systems optimizes the ADC reference buffer to improve SNR performance and reduce power consumption with the TI OPA837 high-speed op amp. This device is used in a composite buffer configuration and provides a 22% power improvement over traditional op amps. Voltage reference sources with an integrated buffer often lack the drive strength required to achieve optimal performance in a high-channel count systems. This reference design is capable of driving several ADCs, and achieves a system ENOB of 15.77 bits using an 18-bit, 2-MSPS SAR ADC.

Features

Remark: Schematic and BOM PDF are added.

  • Two-Stage Buffer Design for Reducing NoiseGenerated From Voltage Reference
  • Implements New Low-Power Reference Driver WithSlew Rate Capability to Drive a 2-MSPS SAR ADC

Typical applications

  • Data Acquisition(DAQ)
  • Lab Instrumentation, semiconductor test equipment, LCD test equipment
  • Battery Test

Products

Order Code Data­sheet Simu­lation Downloads Status Product seriesPins
(pcs)
ApplicationPCB/Cable/PanelModularityTypeWire SectionλDom typ.
(nm)
Emitting ColorλPeak typ.
(nm)
IV typ.
(mcd)
VF typ.
(V)
Chip Technology50% typ.
(°)
CTol. CVR
(V (DC))
SizeOperating TemperatureQ
(%)
RISOCeramic TypeL
(mm)
W
(mm)
H
(mm)
Fl
(mm)
PackagingL
(µH)
IR
(A)
ISAT
(A)
fres
(MHz)
MountTiØ ID
(mm)
Ø OD
(mm)
Qty.Pitch
(mm)
RowsGender Samples
744025006SPEC
9 files Active i| Production is active. Expected lifetime: >10 years.WE-TPC SMT Tiny Power Inductor 2 2828 -40 °C up to +125 °C 2.8 2.8 2.8 6.8 1.1 1.3 59 SMT 550
744031680SPEC
9 files Active i| Production is active. Expected lifetime: >10 years.WE-TPC SMT Tiny Power Inductor 2 3816 -40 °C up to +125 °C 3.8 3.8 1.65 68 0.32 0.22 12 SMT 1000
691213710002SPEC
6 files Active i| Production is active. Expected lifetime: >10 years.WR-TBL Series 213 - 5.00 mm Horiz.l Entry Modular 2 Rising Cage Clamp PCB Yes Horizontal 26 to 16 (AWG) 0.5 to 1.5 (mm²) -40 °C up to +105 °C 10 Box 10 THT 5
61300211121SPEC
7 files Active i| Production is active. Expected lifetime: >10 years.WR-PHD Pin Header - Single 2 Straight -40 °C up to +105 °C1000 MΩ 5.08 Bag 3 THT 2.54 Single Pin Header
61300311121SPEC
7 files Active i| Production is active. Expected lifetime: >10 years.WR-PHD Pin Header - Single 3 Straight -40 °C up to +105 °C1000 MΩ 7.62 Bag 3 THT 2.54 Single Pin Header
150060RS75000SPEC
26 files Active i| Production is active. Expected lifetime: >10 years.WL-SMCW SMT Mono-color Chip LED Waterclear 625 Red 630 250 2 AlInGaP 140 0603 -40 °C up to +85 °C 1.6 0.8 0.7 Tape and Reel SMT 4000
885012006057SPEC
9 files Active i| Production is active. Expected lifetime: >10 years.WCAP-CSGP MLCCs 50 V(DC)100 pF ±5% 50 0603 -55 °C up to +125 °C 100010 GΩ NP0 Class I 1.6 0.8 0.8 0.4 7" Tape & Reel 4000
9774050360RSPEC
6 files Active i| Production is active. Expected lifetime: >10 years.WA-SMSI SMT Steel Spacer with internal Thread M3 -55 °C up to +150 °C 5 Tape and Reel M3 4.2 6 650
Samples
Order Code Data­sheet Simu­lation Downloads Status Product seriesPins
(pcs)
ApplicationPCB/Cable/PanelModularityTypeWire SectionλDom typ.
(nm)
Emitting ColorλPeak typ.
(nm)
IV typ.
(mcd)
VF typ.
(V)
Chip Technology50% typ.
(°)
CTol. CVR
(V (DC))
SizeOperating TemperatureQ
(%)
RISOCeramic TypeL
(mm)
W
(mm)
H
(mm)
Fl
(mm)
PackagingL
(µH)
IR
(A)
ISAT
(A)
fres
(MHz)
MountTiØ ID
(mm)
Ø OD
(mm)
Qty.Pitch
(mm)
RowsGender Samples