LTC2383CMS-16#PBF Linear Technology, LTC2383CMS-16#PBF Datasheet
LTC2383CMS-16#PBF
Specifications of LTC2383CMS-16#PBF
Available stocks
Related parts for LTC2383CMS-16#PBF
LTC2383CMS-16#PBF Summary of contents
Page 1
... LTC238X-16 SAR ADC Family PART NUMBER LTC2383-16 LTC2382-16 LTC2381-16 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. 2.5V 1. 10μF 0.1μF V ...
Page 2
... PLASTIC DFN T = 150°C, θ = 43°C/W JMAX JA EXPOSED PAD (PIN 17) IS GND, MUST BE SOLDERED TO PCB ORDER INFORMATION LEAD FREE FINISH TAPE AND REEL LTC2383CMS-16#PBF LTC2383CMS-16#TRPBF LTC2383IMS-16#PBF LTC2383IMS-16#TRPBF LTC2383HMS-16#PBF LTC2383HMS-16#TRPBF LTC2383CDE-16#PBF LTC2383CDE-16#TRPBF LTC2383IDE-16#PBF LTC2383IDE-16#TRPBF Consult LTC Marketing for parts specified with wider operating temperature ranges. ...
Page 3
ELECTRICAL CHARACTERISTICS temperature range, otherwise specifications are at T SYMBOL PARAMETER + V + Absolute Input Range ( – V – Absolute Input Range ( – V – Input Differential Voltage range IN IN ...
Page 4
LTC2383-16 REFERENCE INPUT The specifications are 25°C. (Note 4) A SYMBOL PARAMETER V Reference Voltage REF I Load Current REF DIGITAL INPUTS AND DIGITAL OUTPUTS full operating temperature range, otherwise specifications are at T SYMBOL PARAMETER V ...
Page 5
ADC TIMING CHARACTERISTICS temperature range, otherwise specifications are at T SYMBOL PARAMETER t SCK Low Time SCKL t SDI Setup Time From SCK ↑ SSDISCK t SDI Hold Time From SCK ↑ HSDISCK t SCK Period in Chain Mode SCKCH ...
Page 6
LTC2383-16 TYPICAL PERFORMANCE CHARACTERISTICS f = 1Msps, unless otherwise noted. SMPL Integral Nonlinearity vs Output Code 2.0 1.5 1.0 0.5 0.0 –0.5 –1.0 –1.5 –2.0 0 16384 32768 49152 65536 OUTPUT CODE 238316 G01 32k Point FFT f = 1Msps, ...
Page 7
TYPICAL PERFORMANCE CHARACTERISTICS f = 1Msps, unless otherwise noted. SMPL INL/DNL vs Temperature 1 MAX INL 0.5 MAX DNL 0 MIN DNL –0.5 MIN INL –1 –55 –35 – 105 125 TEMPERATURE (°C) 238316 G10 ...
Page 8
LTC2383-16 PIN FUNCTIONS CHAIN (Pin 1): Chain Mode Selector Pin. When low, the LTC2383-16 operates in Normal Mode and the RDL/SDI input pin functions to enable or disable SDO. When high, the LTC2383-16 operates in Chain Mode and the RDL/SDI ...
Page 9
TIMING DIAGRAM CHAIN, RDL/SDI = 0 CNV BUSY SCK SDO Conversion Timing Using the Serial Interface POWER-DOWN ACQUIRE CONVERT D15 D14 D13 D12 D11 D10 LTC2383-16 POWER-UP 238316 TD02 238316f ...
Page 10
LTC2383-16 APPLICATIONS INFORMATION OVERVIEW The LTC2383- low noise, low power, high speed 16-bit successive approximation register (SAR) ADC. Operating from a single 2.5V supply, the LTC2383-16 supports a large ±2.5V fully differential input range, making it ideal for ...
Page 11
APPLICATIONS INFORMATION time is important even for DC inputs, because the ADC inputs draw a current spike when entering acquisition. For best performance, a buffer amplifier should be used to drive the analog inputs of the LTC2383-16. The amplifier provides ...
Page 12
LTC2383-16 APPLICATIONS INFORMATION The LT6350 can also be used to buffer and convert single- ended signals larger than the input range of the LTC2383-16 in order to maximize the signal swing that can be digitized. Figure 6 shows the LT6350 ...
Page 13
... The LTC2383-16 requires an external reference to define its input range. A low noise, low temperature drift reference is critical to achieving the full datasheet performance of the ADC. Linear Technology offers a portfolio of high performance references designed to meet the needs of many applications. With its small size, low power and high accuracy, the LTC6652-2 ...
Page 14
LTC2383-16 APPLICATIONS INFORMATION Signal-to-Noise and Distortion Ratio (SINAD) The signal-to-noise and distortion ratio (SINAD) is the ratio between the RMS amplitude of the fundamental input frequency and the RMS amplitude of all other frequency components at the A/D output. The ...
Page 15
APPLICATIONS INFORMATION Internal Conversion Clock The LTC2383-16 has an internal clock that is trimmed to achieve a maximum conversion time of 730ns. With a min- imum acquisition time of 250ns, throughput performance of 1Msps is guaranteed without any external adjustments. ...
Page 16
LTC2383-16 TIMING DIAGRAM Normal Mode, Single Device When CHAIN = 0, the LTC2383-16 operates in Normal mode. In Normal mode, RDL/SDI enables or disables the serial data output pin SDO. If RDL/SDI is high, SDO is in high-impedance. If RDL/SDI ...
Page 17
TIMING DIAGRAM Normal Mode, Multiple Devices Figure 13 shows multiple LTC2383-16 devices operating in Normal Mode(CHAIN = 0) sharing CNV, SCK and SDO. By sharing CNV, SCK and SDO, the number of required signals to operate multiple ADCs in parallel ...
Page 18
LTC2383-16 TIMING DIAGRAM When CHAIN = OV , the LTC2383-16 operates in Chain DD Mode. In Chain Mode, SDO is always enabled and RDL/SDI serves as the serial data input pin (SDI) where daisychain data output from another ADC can ...
Page 19
BOARD LAYOUT To obtain the best performance from the LTC2383-16 a printed circuit board is recommended. Layout for the printed circuit board (PCB) should ensure the digital and analog signal lines are separated as much as possible. In particular, care ...
Page 20
LTC2383-16 BOARD LAYOUT 20 Partial Layer 1 Component Side Partial Layer 2 Ground Plane 238316 BL02 238316 BL03 238316f ...
Page 21
BOARD LAYOUT Partial Layer 3 PWR Plane Partial Layer 4 Bottom Layer LTC2383-16 238316 BL04 238316 BL05 238316f 21 ...
Page 22
LTC2383-16 BOARD LAYOUT 22 Partial Schematic of Demoboard REF1 8 REF 1 GND 7 GND GND GND 238316f ...
Page 23
... LEAD COPLANARITY (BOTTOM OF LEADS AFTER FORMING) SHALL BE 0.102mm (.004") MAX Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However, no responsibility is assumed for its use. Linear Technology Corporation makes no representation that the interconnection of its circuits as described herein will not infringe on existing patent rights. ...
Page 24
... Supply Current www.linear.com ● 0 SNR = 92.2dB –20 THD = –106.2dB SINAD = 92dB –40 SFDR = 110.4dB –60 –80 –100 238316 TA03 –120 –140 –160 –180 0 100 200 300 FREQUENCY (kHz) LT 0810 • PRINTED IN USA © LINEAR TECHNOLOGY CORPORATION 2010 400 500 238316 TA04 238316f ...