LTC2393CLX-16 LINER [Linear Technology], LTC2393CLX-16 Datasheet
LTC2393CLX-16
Available stocks
Related parts for LTC2393CLX-16
LTC2393CLX-16 Summary of contents
Page 1
FEATURES n 1Msps Throughput Rate n ±2LSB INL (Max) n Guaranteed 16-Bit No Missing Codes n 94dB SNR (Typ 20kHz Grade n Single 5V Supply n 1. I/O Voltages n 125mW Power ...
Page 2
... LTC2393IUK-16#PBF LTC2393IUK-16#TRPBF LEAD FREE FINISH TRAY LTC2393CLX-16#PBF LTC2393CLX-16#PBF LTC2393ILX-16#PBF LTC2393ILX-16#PBF LTC2393HLX-16#PBF LTC2393HLX-16#PBF Consult LTC Marketing for parts specifi ed with wider operating temperature ranges. *The temperature grade is identifi label on the shipping container. ...
Page 3
ANALOG INPUT l The denotes the specifi cations which apply over the full operating temperature range, otherwise specifi cations are 25°C. (Note 4) A SYMBOL PARAMETER + + V Absolute Input Range ( – – ...
Page 4
LTC2393-16 INTERNAL REFERENCE CHARACTERISTICS operating temperature range, otherwise specifi cations are at T PARAMETER V Output Voltage REF V Output Tempco REF V Output Impedance REF External Reference Voltage REFIN Input Impedance V Line Regulation REF VCM Output Voltage DIGITAL ...
Page 5
TIMING CHARACTERISTICS range, otherwise specifi cations are SYMBOL PARAMETER f Sampling Frequency SMPL t Conversion Time CONV t Acquisition Time ACQ CNVST Low Time t 4 CNVST High Time t 5 CNVST↓ to BUSY Delay t 6 ...
Page 6
LTC2393-16 TYPICAL PERFORMANCE CHARACTERISTICS Integral Nonlinearity vs Output Code 2.0 1.5 1.0 0.5 0 –0.5 –1.0 –1.5 –2.0 0 16384 32768 49152 65536 OUTPUT CODE 239316 G01 DC Histogram (Internal Reference) 2000000 1800000 1600000 1400000 1200000 1000000 800000 600000 400000 ...
Page 7
TYPICAL PERFORMANCE CHARACTERISTICS SNR, SINAD vs Input Frequency 96 SNR 94 SINAD 100 125 150 175 FREQUENCY (kHz) 239316 G10 THD, Harmonics 20kHz IN vs Temperature ...
Page 8
LTC2393-16 PIN FUNCTIONS GND (Pins 20, 35, 41, 44, 48): Ground. All GND pins must be connected to a solid ground plane. AVP (Pins 2, 40, 45, 46, 47): 5V Analog Power Supply. The range of AVP ...
Page 9
PIN FUNCTIONS BUSY (Pin 29): Busy Output. A low-to-high transition oc- curs when a conversion is started. It stays high until the conversion is complete. The falling edge of BUSY can be used as the data-ready clock signal. RD (Pin ...
Page 10
LTC2393-16 FUNCTIONAL BLOCK DIAGRAM LTC2393- – IN REFIN REFOUT VCM TIMING DIAGRAMS CS CNVST BUSY D[15:0] CS CNVST BUSY SCLK SDOUT 10 AVP DVP OVP 16-BIT SAMPLING ADC 16-BIT 1x BUFFER 4.096V ...
Page 11
APPLICATIONS INFORMATION OVERVIEW The LTC2393- low noise, high speed 16-bit suc- cessive approximation register (SAR) ADC. Operating from a single 5V supply, the LTC2393-16 supports a large ±4.096V fully differential input range, making it ideal for high performance ...
Page 12
LTC2393-16 APPLICATIONS INFORMATION INPUT DRIVE CIRCUITS A low impedance source can directly drive the high imped- ance inputs of the LTC2393-16 without gain error. A high impedance source should be buffered to minimize settling time during acquisition and to optimize ...
Page 13
APPLICATIONS INFORMATION Internal Reference To use the internal reference, simply tie the REFOUT and REFIN pins together. This connects the 4.096V output of the internal reference to the input of the internal reference buffer. The output impedance of the internal ...
Page 14
LTC2393-16 APPLICATIONS INFORMATION Signal-to-Noise Ratio (SNR) The signal-to-noise ratio (SNR) is the ratio between the RMS amplitude of the fundamental input frequency and the RMS amplitude of all other frequency components except the fi rst fi ve harmonics and DC. ...
Page 15
APPLICATIONS INFORMATION will fi nish and then the device will power down. The data from that conversion can be read after PD = high is ap- plied. In this mode power consumption drops to a typical value of 175μW from ...
Page 16
LTC2393-16 APPLICATIONS INFORMATION Parallel Modes The parallel output data interface is active when the SER/PAR pin is tied low and when both CS and RD are low. The output data can be read as a 16-bit word as shown in ...
Page 17
APPLICATIONS INFORMATION CS RD BUSY DATA BUS D[15:0] CNVST, RD BUSY DATA BUS D[15:0] Figure 10. Read the Parallel Data During the Conversion CS, RD BYTESWAP Hi-Z D[15:8] Figure 11. 8-Bit Parallel Interface Using the BYTESWAP Pin Hi-Z Hi-Z CURRENT ...
Page 18
LTC2393-16 APPLICATIONS INFORMATION BUSY SCLK SDOUT Hi-Z (ADC 2) SDIN (ADC BUSY SCLK Hi-Z SDOUT (ADC 2) SDIN (ADC 2) CNVST IN SCLK IN Figure 12. Serial Interface with ...
Page 19
APPLICATIONS INFORMATION RESET CVNST DATA BUS D[15: ACQ Hi-Z Figure 13. RESET Pin Timing LTC2393-16 239316 F13 239316p 19 ...
Page 20
LTC2393-16 APPLICATIONS INFORMATION BOARD LAYOUT To obtain the best performance from the LTC2393-16, a printed circuit board (PCB) is recommended. Layout for the printed circuit board should ensure the digital and analog signal lines are separated as much as possible. ...
Page 21
APPLICATIONS INFORMATION Partial Layer 1 Component Side Partial Top Silkscreen Partial Layer 2 Ground Plane LTC2393-16 239316p 21 ...
Page 22
LTC2393-16 PACKAGE DESCRIPTION 5.15 0.05 5.15 0.05 0.25 0.05 0.50 BSC RECOMMENDED SOLDER PAD PITCH AND DIMENSIONS APPLY SOLDER MASK TO AREAS THAT ARE NOT SOLDERED 7.00 0.10 (4 SIDES) PIN 1 TOP MARK (SEE NOTE 6) NOTE: 1. DRAWING ...
Page 23
PACKAGE DESCRIPTION 7.15 – 7.25 5.50 REF 0.50 BSC 0.20 – 0.30 PACKAGE OUTLINE 1.30 MIN RECOMMENDED SOLDER PAD LAYOUT APPLY SOLDER MASK TO AREAS THAT ARE NOT SOLDERED 11° – 13° 11° – 13° 1.00 REF ...
Page 24
LTC2393-16 RELATED PARTS PART NUMBER DESCRIPTION LTC1411 14-Bit 2.5Msps Parallel ADC LTC1606 16-Bit 250ksps Parallel ADC LTC1608 16-Bit 500ksps Parallel ADC LTC1609 16-Bit 200ksps Serial ADC LTC1864 16-Bit 250ksps Serial ADC LTC1864L 16-Bit 150ksps Serial ADC LTC1865 16-Bit 250ksps Serial ...