LM98640QML-SP Texas instruments

LM98640QML-SP

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LM98640QML-SP

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Описание

The LM98640QML-SP is a fully integrated, high performance 14-Bit, 5-MSPS to 40-MSPS signal processing solution. The Serial LVDS output format performs well during single event exposure, preventing data loss. The LM98640QML-SP has an adaptive power scaling feature to optimize power consumption based on the operating frequency and amount of gain required. High-speed signal throughput is achieved with an innovative architecture utilizing Correlated Double Sampling (CDS), typically employed with CCD arrays, or Sample and Hold (S/H) inputs (for CIS and CMOS image sensors). The sampling edges are programmable to a resolution of 1/64th of a pixel period. Both the CDS and S/H have a programmable gain of either 0 dB or 6 dB. The signal paths utilize two ±8-bit offset correction DACs for coarse and fine offset correction, and 8-bit Programmable Gain Amplifiers (PGA) that can be programmed independently for each input. The signals are then routed to two on chip 14-bit 40-MHz high performance analog-to-digital converters (ADC). The fully differential processing channel provides exceptional noise immunity, having a very low noise floor of –79 dB at 1x gain.

Radiation Hardened
- TID 100 krad(Si)
- Single Event Latch-Up (SEL) Immune to LET = 120 MeV-cm²/mg
- Single Event Functional Interrupt (SEFI) Free to 120 MeV-cm²/mg
- SMD 5962R1820301VXC
ADC Resolution: 14-Bit
ADC Sampling Rate: 5 MSPS to 40 MSPS
Input Level: 2.85 V
Supply Voltages 3.3 V and 1.8 V (Nominal)
- 125 mW per Channel at 15 MSPS
- 178 mW per Channel at 40 MSPS
CDS or S/H Processing for CCD or CIS Sensors
- CDS or S/H Gain 0 dB or 6 dB
Programmable Analog Gain for Each Channel
- 256 Steps; Range –3 dB to 18 dB
Programmable Analog Offset Correction
- Fine and Coarse DAC Resolution ±8 Bits
- Fine DAC Range ±5 mV
- Coarse DAC Range ±250 mV
Programmable Input Clamp Voltage
Programmable Sample Edge: 1/64th Pixel Period
INL at 15 MHz: ±3.5 LSB
Noise Floor: –79 dB
Crosstalk: –80 dB
Operating Temp: –55°C to 125°C

Resolution (Bits)	14
Number of channels	2
Sample rate (Msps)	40
Gain (min) (dB)	-3.8
Gain (max) (dB)	18.4
Pd (typ) (mW)	356
Supply voltage (max) (V)	3.3
Operating temperature range (°C)	-55 to 125, 25 to 25
Output data format	LVDS
Rating	Space