LTC1605-2_15 Datasheet, PDF (1/20 Pages) Linear Technology – Single Supply 16-Bit, 100ksps, Sampling ADCs

LTC1605-1/LTC1605-2
Single Supply 16-Bit, 100ksps,
Sampling ADCs
FEATURES
s _{Sample Rate: 100ksps}
s _{Complete 16-Bit Solution on a Single 5V Supply}
s _{Unipolar Input Range: 0V to 4V (LTC1605-1)}
s _{Bipolar Input Range: ±4V (LTC1605-2)}
s _{Power Dissipation: 55mW Typ}
s _{Signal-to-Noise Ratio: 86dB Typ}
s _{Operates with Internal or External Reference}
s _{Internal Synchronized Clock}
s _{28-Pin 0.3" PDIP and SSOP Packages}
U
APPLICATIO S
s _{Industrial Process Control}
s _{Multiplexed Data Acquisition Systems}
s _{High Speed Data Acquisition for PCs}
s _{Digital Signal Processing}
DESCRIPTIO
The LTC^®1605-1/LTC1605-2 are 100ksps, sampling
16-bit A/D converters that draw only 55mW (typical) from
a single 5V supply. These easy-to-use devices include a
sample-and-hold, precision reference, switched capacitor
successive approximation A/D and trimmed internal clock.
The LTC1605-1’s input range is 0V to 4V while the
LTC1605-2’s input range is ±4V. 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 APPLICATIO
LTC1605-1 Low Power, 100kHz, 16-Bit Sampling ADC on 5V Supply
0V TO 4V ^200Ω
INPUT
33.2k
2.5V
2.2µF
2.5V
2.2µF
1 ^VIN
4 ^CAP
3 REF
5V
28 27
V_DIG V_ANA
4k
20k 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
2.5V
REFERENCE
CONTROL
LOGIC AND
TIMING
AGND1 AGND2 DGND
2
5
14
BUSY 26
CS 25
R/C 24
BYTE 23
DIGITAL
CONTROL
SIGNALS
1605-1/2 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
1605-1/2 TA02/G04
1