Datasheet
FEATURES APPLICATIONS
DESCRIPTION
CDAC
_
+
Output
Latches
and
3-State
Drivers
FS
SAR
Conversion
and
Control Logic
Comparator
Clock
+IN
−IN
REFIN
CONVST
BUSY
CS
PD
4.096-V
Internal
Reference
REFOUT
SCLK
SDO
ADS8382
SLAS416B – JUNE 2004 – REVISED NOVEMBER 2004
18-BIT, 600-kHz, FULLY DIFFERENTIAL PSEUDO-BIPOLAR INPUT,
MICROPOWER SAMPLING ANALOG-TO-DIGITAL CONVERTER
WITH SERIAL INTERFACE AND REFERENCE
• 600-kHz Sample Rate • Medical Instruments
• Optical Networking
• ±1.25 LSB Typ, ±3 LSB Max INL
• Transducer Interface
• 18-Bit NMC Ensured Over Temperature
• High Accuracy Data Acquisition Systems
• SINAD 96 dB, SFDR 120 dB at f
i
= 1 kHz
• Magnetometers
• High-Speed Serial Interface up to 40 MHz
• Onboard Reference Buffer
• Onboard 4.096-V Reference
The ADS8382 is a high performance 18-bit, 600-kHz
• Pseudo-Bipolar Input, up to ±4.2 V
A/D converter with fully differential, pseudo-bipolar
• Onboard Conversion Clock
input. The device includes an 18-bit capacitor-based
• Zero Latency
SAR A/D converter with inherent sample and hold.
• Wide Digital Supply
The ADS8382 offers a high-speed CMOS serial
• Low Power
interface with clock speeds up to 40 MHz.
– 115 mW at 600 kHz
The ADS8382 is available in a 28 lead 6 × 6 QFN
– 15 mW During Nap Mode
package and is characterized over the industrial
–40°C to 85°C temperature range.
– 10 µ W During Power Down
• 28-Pin 6 × 6 QFN Package
High Speed SAR Converter Family
Type/Speed 500 kHz ~ 600 kHz 750 kHZ 1 MHz 1.25 MHz 2 MHz 3 MHz 4 MHz
ADS8383 ADS8381
18-Bit Pseudo-Diff
ADS8380 (S)
18-Bit Pseudo-Bipolar, Fully Diff ADS8382 (S)
16-Bit Pseudo-Diff ADS8371 ADS8401/05 ADS8411
16-Bit Pseudo-Bipolar, Fully Diff ADS8402/06 ADS8412
14-Bit Pseudo-Diff ADS7890 (S) ADS7891
12-Bit Pseudo-Diff ADS7886 ADS7881
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.
Copyright © 2004, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.