1
LTC1606
1606fa
16-Bit, 250ksps,
Single Supply ADC
The LTC
®
1606 is a 250ksps, sampling 16-bit A/D con-
verter that draws only 75mW (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 LTC1606’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 90dB signal-to-noise ratio offers an improvement of
3dB over competing devices, and the RMS transition noise
is reduced (0.65LSB vs 1LSB) relative to competitive
parts.
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.
■
Sample Rate: 250ksps
■
Single 5V Supply
■
Bipolar Input Range:
±
10V
■
Signal-to-Noise Ratio: 90dB Typ
■
Power Dissipation: 75mW Typ
■
Guaranteed No Missing Codes
■
Integral Nonlinearity: ±2.0LSB Max
■
Operates with Internal or External Reference
■
Internal Synchronized Clock
■
28-Pin SSOP and SO Packages
■
100ksps Version (LTC1605)
■
Improved 2nd Source to AD976A and ADS7805
■
Available in 28-Lead Plastic SSOP and SO Packages
■
Industrial Process Control
■
Multiplexed Data Acquisition Systems
■
High Speed Data Acquisition for PCs
■
Digital Signal Processing
Low Power, 250kHz, 16-Bit Sampling ADC on 5V Supply
4k
7.35k
200Ω
REFERENCE
2.5k 9k
16-BIT
SAMPLING ADC
D15 TO D0
33.2k
10µF
10µF
0.1µF
2.2µF
±10V
INPUT
V
IN
LTC1606
CAP
REF
AGND1
1
4
3
2
AGND2
5
DGND
14
CONTROL
LOGIC AND
TIMING
BUSY
BYTE
CS
R/C
28 27
6 TO 13
15 TO 22
26
25
24
23
DIGITAL
CONTROL
SIGNALS
1606 TA01
16-BIT
OR 2 BYTE
PARALLEL
BUS
5V
V
DIG
V
ANA
1.64x
BUFFER
4.096V
2.5V
FEATURES
DESCRIPTIO
U
APPLICATIO S
U
BASIC CO FIGURATIO
UU
Typical INL Curve
CODE
0
INL (LSB)
0
1.0
65535
1606 G04
–1.0
–2.0
16384
32768
49152
2.0
–0.5
0.5
–1.5
1.5
, LTC and LT are registered trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners.