Linear Technology LTC2315-12, 12-bit, 5Msps Serial SAR ADC with 20ppm/C (Max) Internal Reference in TSOT-8 (Req DC590 or DC718) Linear Tec DC1563A-A 数据表
产品代码
DC1563A-A
LTC2315-12
1
231512fa
TYPICAL APPLICATION
FEATURES
DESCRIPTION
12-Bit, 5Msps Serial
Sampling ADC in TSOT
converter that draws only 6.4mA from a wide range analog
supply adjustable from 2.7V to 5.25V. The LTC2315-12
contains an integrated bandgap and reference buffer which
provide a low cost, high performance (20ppm/°C max)
and space saving applications solution. The LTC2315-12
achieves outstanding AC performance of 72.6dB SINAD
and –84dB THD while sampling a 500kHz input frequency.
The extremely high sample rate-to-power ratio makes the
LTC2315-12 ideal for compact, low power, high speed
systems. The LTC2315-12 also provides both nap and
sleep modes for further optimization of the device power
within a system.
The LTC2315-12 has a high-speed SPI-compatible serial
The LTC2315-12 has a high-speed SPI-compatible serial
interface that supports 1.8V, 2.5V, 3V and 5V logic. The
fast 5Msps throughput makes the LTC2315-12 ideally
suited for a wide variety of high speed applications.
Complete 14-/12-Bit Pin-Compatible SAR ADC Family
500ksps
2.5Msps
4.5Msps
5Msps
14-Bit
LTC2312-14 LTC2313-14 LTC2314-14
12-Bit
LTC2312-12 LTC2313-12
LTC2315-12
Power 3V/5V 9mW/15mW 14mW/25mW 18mW/31mW 19mW/32mW
APPLICATIONS
n
5Msps Throughput Rate
n
Guaranteed 12-Bit No Missing Codes
n
Internal Reference: 2.048V/4.096V Span
n
Low Noise: 73dB SNR
n
Low Power: 6.4mA at 5Msps and 5V
n
Dual Supply Range: 3V/5V operation
n
Sleep Mode with < 1µA Typical Supply Current
n
Nap Mode with Quick Wake-up < 1 conversion
n
Separate 1.8V to 5V Digital I/O Supply
n
High Speed SPI-Compatible Serial I/O
n
Guaranteed Operation from –40°C to 125°C
n
8-Lead TSOT-23 Package
n
Communication Systems
n
High Speed Data Acquisition
n
Handheld Terminal Interface
n
Medical Imaging
n
Uninterrupted Power Supplies
n
Battery Operated Systems
n
Automotive
L
, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear
Technology Corporation. All other trademarks are the property of their respective owners.
5V Supply, Internal Reference, 5Msps, 12-bit Sampling ADC
SERIAL DATA LINK TO
ASIC, PLD, MPU, DSP
OR SHIFT REGISTERS
ANALOG INPUT
0V TO 4.096V
5V
2.2µF
2.2µF
2.2µF
231512 TA01
GND
V
DD
REF
A
IN
OV
DD
SCK
CS
SDO
LTC2315-12
DIGITAL OUTPUT SUPPLY
1.8V TO 5V
16k Point FFT, f
S
= 5Msps, f
IN
= 500kHz
231512 TA01a
FREQUENCY (kHz)
AMPLITUDE (dBFS)
0
2500
2000
1000
500
1500
0
–20
–40
–60
–80
–100
–120
–140
V
DD
= 5V
SNR = 73.1dBFS
SINAD = 72.6dBFS
THD = –84dB
SFDR = 87dBc