LTM9012
Quad 14-Bit, 125Msps ADC
with Integrated Drivers
FeaTures
DescripTion
n
4-Channel Simultaneous Sampling ADC with
The LTM®9012 is a 4-channel, simultaneous sampling
14-bit µModule® analog-to-digital converter (ADC) with
integrated, fixed gain, differential ADC drivers. The low
noise amplifiers are suitable for single-ended drive and
pulse train signals such as imaging applications. Each
channel includes a lowpass filter between the driver out-
put and ADC input.
Integrated, Fixed Gain, Differential Drivers
n
68.3dB SNR
n
78dB SFDR
n
Low Power: 1.27W Total, ꢃ18mW per Channel
n
1.8V ADC Core and ꢃ.ꢃV Analog ꢁnput ꢀupplꢂ
n
ꢀerial LVDꢀ Outputs: 1 or 2 Sits per Channel
n
ꢀhutdown and Iap Modes
DC specs include 1.2LꢀS ꢁIL (tꢂp), 0.ꢃLꢀS DIL (tꢂp)
and no missing codes over temperature. The transition
n
11.25mm × 15mm SGA Package
noise is a low 1.2LꢀS
.
RMꢀ
applicaTions
The digital outputs are serial LVDꢀ and each channel out-
puts two bits at a time (2-lane mode). At lower sampling
rates there is a one bit option (1-lane mode). The LVDꢀ
drivers have optional internal termination and adjustable
output levels to ensure clean signal integritꢂ.
n
ꢁndustrial ꢁmaging
n
Medical ꢁmaging
Multichannel Data Acquisition
n
n
Iondestructive Testing
+
–
L, LT, LTC, LTM, Linear Technologꢂ, the Linear logo and µModule are registered trademarks of
Linear Technologꢂ Corporation. All other trademarks are the propertꢂ of their respective owners.
The EIC and EIC inputs maꢂ be driven differentiallꢂ
or single-ended with a sine wave, PECL, LVDꢀ, TTL or
CMOꢀ inputs. An internal clock dutꢂ cꢂcle stabilizer al-
lows high performance at full speed for a wide range of
clock dutꢂ cꢂcles.
Typical applicaTion
Single-Ended Sensor Digitization
LTM9012, 125Msps, 70MHz FFT
3.3V
1.8V
1.8V
0
V
V
OV
DD
CC
DD
LTM9012
–10
–20
14
14
14
14
PIPELINE
ADC
DATA
SERIALIZER
ENCODER
AND
LVDS
DRIVERS
–30
CHANNEL 1
CHANNEL 2
–40
–50
PIPELINE
ADC
IMAGE
SENSOR
•
•
•
–60
FPGA
–70
CHANNEL 3
CHANNEL 4
PIPELINE
ADC
–80
–90
–100
–110
–120
PIPELINE
ADC
+
–
FR
FR
INTERNAL
REFERENCE & SUPPLY
BYPASS CAPACITORS
35 40
0
5
10 15 20 25 30
45 50 55 60
+
–
V
REF
PLL
+
DCO
DCO
FREQUENCY (MHz)
9012 TA01b
–
SCK SDI SDO CS PAR/SER ENC
ENC
9012 TA01a
ENCODE CLOCK
9012fa
1
For more information www.linear.com/LTM9012