
22
LTC1282
U
S
A
O
PPLICATI
WU
U
I FOR ATIO
Other High Speed A/D Converters
LTC makes a family of high speed sampling ADCs for a
variety of applications. Both single 5V and
±5V supply
devices are available at high speeds. The high speed
12-bit family is summarized below.
*6mW power shutdown with instant wake up
LTC1273/5/6
AIN
VREF
AGND
D11 (MSB)
D10
D9
D8
D7
D6
D5
D4
DGND
VDD
NC
BUSY
CS
RD
HBEN
D0/8
D1/9
D2/10
D3/11
+
10
F
0.1
F
ANALOG INPUT
2.42V
VREF
OUTPUT
8- OR 12-BIT
PARALLEL BUS
P CONTROL
LINES
+
0.1
F
10
F
5V
2.7
s Conversion
Time
Built-In
Sample & Hold
Reference
Output For
System Use
Parallel Outputs
For The Fastest
Data Transfer Rates
No Negative
Supply Required
for Unipolar
Operation
Internal Clock
No Crystal
Required
Only 75mW
Power
Consumption
Reference On Board
300ksps and 500ksps 12-Bit Sampling A/D Converters
Comparison of Specifications and Features
DEVICE
SAMPLING
S/(N + D)
INPUT
POWER
TYPE
FREQ
@ NYQUIST RANGE
SUPPLY DISSIPATION
LTC1272
250kHz
65dB
0V-5V
5V
75mW
LTC1273
300kHz
70dB
0V-5V
5V
75mW
LTC1275
300kHz
70dB
±2.5V
±5V
75mW
LTC1276
300kHz
70dB
±5V
75mW
LTC1278
500kHz
70dB
0V-5V
5V
75mW
or
±2.5V or ±5V
6mW*
LTC1282
140kHz
68dB
0V-2.5V
3V
12mW
or
±1.25V or ±3V