LTC1605
16-Bit, 100ksps,
Sampling ADC
FEATURES
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DESCRIPTION
The LTC
廬
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鈥檚 input range is an industry standard
鹵10V.
Maximum DC specs include
鹵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.
Sample Rate: 100ksps
Single 5V Supply
Bipolar Input Range:
鹵
10V
Power Dissipation: 55mW Typ
Integral Nonlinearity:
鹵2.0LSB
Max
Guaranteed No Missing Codes
Signal-to-Noise Ratio: 86dB Typ
Operates with Internal or External Reference
Internal Synchronized Clock
28-Pin 0.3鈥?PDIP, SSOP and SW Packages
Improved 2nd Source to ADS7805 and AD976
APPLICATIONS
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Industrial Process Control
Multiplexed Data Acquisition Systems
High Speed Data Acquisition for PCs
Digital Signal Processing
TYPICAL APPLICATION
Low Power, 100kHz, 16-Bit Sampling ADC on 5V Supply
5V
10碌F
28
27
V
DIG
V
ANA
鹵10V
200鈩?/div>
INPUT
33.2k
4 CAP
BUSY 26
2.2碌F
BUFFER
3 REF
2.2碌F
AGND1
2
AGND2
5
DGND
14
1605 鈥?TA01
0.1碌F
1 V
IN
20k
16-BIT
SAMPLING ADC
4k
10k
D15 TO D0
16-BIT
OR 2 BYTE
PARALLEL
BUS
INL (LSBs)
6 TO 13
15 TO 22
4k
REFERENCE
CONTROL
LOGIC AND
TIMING
CS 25
R/C 24
BYTE 23
DIGITAL
CONTROL
SIGNALS
U
U
U
Typical INL Curve
2.0
1.5
1.0
0.5
0
鈥?.5
鈥?.0
鈥?.5
鈥?.0
0
16384
32768
CODE
1605 鈥?TA02
49152
65535
1
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