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PDF ADS8371I Data sheet ( Hoja de datos )
| Número de pieza | ADS8371I | |
| Descripción | 16BIT 750KHZ UNIPOLAR INPUT/ MICRO POWER SAMPLING ANALOG TO DIGITAL CONVERTER WITH PARALLEL INTERFACE | |
| Fabricantes | Burr-Brown Corporation | |
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ADS8371
SLAS390A − JUNE 2003 − REVISED DECEMBER 2003
16ĆBIT, 750ĆkHz, UNIPOLAR INPUT, MICRO POWER SAMPLING
ANALOGĆTOĆDIGITAL CONVERTER WITH PARALLEL INTERFACE
FEATURES
D 750-KSPS Sample Rate
D High Linearity:
− +0.9 LSB INL Typ, +1.5 LSB Max
− −0.4/+0.6 LSB DNL Typ, +1 LSB Max
D Onboard Reference Buffer and Conversion
Clock
D 0 V to 4.096 V Unipolar Inputs
D Low Noise: 88 dB SNR
D High Dynamic Range: 110 dB SFDR
D Very Low Offset and Offset Drift
D Low Power: 130 mW at 750 KSPS
D Wide Buffer Supply, 2.7 V to 5.25 V
D Flexible 8-/16-Bit Parallel Interface
D Direct Pin Compatible With
ADS8381/ADS8383
D 48-Pin TQFP Package
APPLICATIONS
D Medical Instruments
D Optical Networking
D Transducer Interface
D High Accuracy Data Acquisition Systems
D Magnetometers
DESCRIPTION
The ADS8371 is an 16-bit, 750 kHz A/D converter. The
device includes a 16-bit capacitor-based SAR A/D
converter with inherent sample and hold. The ADS8371
offers a full 16-bit interface or an 8-bit bus option using two
read cycles.
The ADS8371 is available in a 48-lead TQFP package and
is characterized over the industrial −40°C to 85°C
temperature range.
+IN
−IN
REFIN
+
_
SAR
CDAC
Comparator
Clock
Output
Latches
and
3-State
Drivers
BYTE
16-/8-Bit
Parallel DATA
Output Bus
Conversion
and
Control Logic
CONVST
BUSY
CS
RD
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments
semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date. Products
conform to specifications per the terms of Texas Instruments standard warranty.
Production processing does not necessarily include testing of all parameters.
Copyright 2003, Texas Instruments Incorporated
1 page  
www.ti.com
ADS8371
SLAS390A − JUNE 2003 − REVISED DECEMBER 2003
SPECIFICATIONS (CONTINUED)
TA = −40°C to 85°C, +VA = +5 V, +VBD = 3 V or 5 V, Vref = 4.096 V, fSAMPLE = 750 kHz (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN TYP
MAX
Digital Input/Output
Logic family
CMOS
Logic level
Data format
VIH
VIL
VOH
VOL
IIH = 5 µA
IIL = 5 µA
IOH = 2 TTL loads
IOL = 2 TTL loads
+VBD−1
−0.3
+VBD + 0.3
0.8
+VBD − 0.6
0.4
Straight
Binary
Power Supply Requirements
+VBD Buffer supply
Power supply voltage
+VA Analog Supply
Supply current, 750-kHz sample rate (1)
Power dissipation, 750-kHz sample rate (1)
2.7 3.3
4.75 5
26
130
5.25
5.25
28
140
Temperature Range
Operating free-air
−40
(1) This includes only +VA current. +VBD current is typical 1 mA with 5 pF load capacitance on all output pins.
85
UNIT
V
V
V
mA
mW
°C
5
5 Page 
www.ti.com
tw1
CONVST
ADS8371
SLAS390A − JUNE 2003 − REVISED DECEMBER 2003
tw2
tpd1
BUSY
tsu6
CS
tpd3
CONVERT†
tHOLD
SAMPLING†
(When CS Toggle)
BYTE
tw4 tpd2
tw3
tw7
tsu6
tCONV
tsu(AB)
tsu5
th1
tsu5
tACQ
tsu5
tsu5
tCONV
tsu(AB)
tdis
RD = 0
ten
DB[15:8]
Previous
Hi−Z D [15:8]
Hi−Z
DB[7:0]
Previous
Hi−Z D [7:0]
Hi−Z
†Signal internal to device
tpd4
ten
D[15:8]
D[7:0]
tsu2
th2
ten
tdis
D[7:0]
Previous
Hi−Z D [15:8]
Previous
Hi−Z
D [7:0]
Figure 2. Timing for Conversion and Acquisition Cycles With CS Toggling, RD Tied to BDGND
11
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet ADS8371I.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| ADS8371 | 16BIT 750KHZ UNIPOLAR INPUT/ MICRO POWER SAMPLING ANALOG TO DIGITAL CONVERTER WITH PARALLEL INTERFACE | Burr-Brown Corporation |
| ADS8371 | 16-Bit 750-kHz Unipolar Input Micro Power Sampling ADC Converter w/Parallel (Rev. B) |  Texas Instruments |
| ADS8371I | 16BIT 750KHZ UNIPOLAR INPUT/ MICRO POWER SAMPLING ANALOG TO DIGITAL CONVERTER WITH PARALLEL INTERFACE | Burr-Brown Corporation |
| ADS8371IB | 16BIT 750KHZ UNIPOLAR INPUT/ MICRO POWER SAMPLING ANALOG TO DIGITAL CONVERTER WITH PARALLEL INTERFACE | Burr-Brown Corporation |
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