LTC1605 Datasheet, PDF (1/16 Pages) Linear Technology – 16-Bit, 100ksps, Sampling ADC

FEATURES
s _{Sample Rate: 100ksps}
s _{Single 5V Supply}
s _{Bipolar Input Range: ±10V}
s _{Power Dissipation: 55mW Typ}
s _{Integral Nonlinearity: ±2.0LSB Max}
s _{Guaranteed No Missing Codes}
s _{Signal-to-Noise Ratio: 86dB Typ}
s _{Operates with Internal or External Reference}
s _{Internal Synchronized Clock}
s _{28-Pin 0.3” PDIP, SSOP and SW Packages}
s _{Improved 2nd Source to ADS7805 and AD976}
U
APPLICATIONS
s _{Industrial Process Control}
s _{Multiplexed Data Acquisition Systems}
s _{High Speed Data Acquisition for PCs}
s _{Digital Signal Processing}
LTC1605
16-Bit, 100ksps,
Sampling ADC
DESCRIPTION
The LTC^®1605 is a 100ksps, sampling 16-bit A/D con-
verter that draws only 55mW (typical) from a single 5V
supply. This easy-to-use device includes sample-and-
hold, precision reference, switched capacitor successive
approximation A/D and trimmed internal clock.
The LTC1605’s input range is an industry standard ±10V.
Maximum DC specs include ±2.0LSB INL and 16-bits no
missing codes over temperature. An external reference
can be used if greater accuracy over temperature is
needed.
The ADC has a microprocessor compatible, 16-bit or two
byte parallel output port. A convert start input and a data
ready signal (BUSY) ease connections to FIFOs, DSPs and
microprocessors.
, LTC and LT are registered trademarks of Linear Technology Corporation.
TYPICAL APPLICATION
Low Power, 100kHz, 16-Bit Sampling ADC on 5V Supply
±10V ^200Ω
INPUT
33.2k
2.2µF
2.2µF
1 ^VIN
4 CAP
3 REF
5V
28 27
V_DIG V_ANA
20k
4k 10k
10µF
0.1µF
16-BIT
SAMPLING ADC
6 TO 13
15 TO 22
D15 TO D0
16-BIT
OR 2 BYTE
PARALLEL
BUS
BUFFER
4k
REFERENCE
CONTROL
LOGIC AND
TIMING
AGND1 AGND2 DGND
2
5
14
BUSY 26
CS 25
R/C 24
BYTE 23
DIGITAL
CONTROL
SIGNALS
1605 • TA01
2.0
1.5
1.0
0.5
0
–0.5
–1.0
–1.5
–2.0
0
Typical INL Curve
16384
32768
CODE
49152 65535
1605 • TA02
1