No Latency Delta-Sigma™ ADCs Easy Drive™ ∆∑ ADC Family Direct Sensor Digitization 600nVRMS Core, Matched Source RCs Part Number Speed # Ch (sps) Bits LTC ®2480 LTC2481 16 1 16 1 LTC2482 LTC2483 LTC2484 16 16 24 1 1 1 LTC2485 24 1 Noise (µV) INL (ppm) I/O 50Hz/60Hz* MUXOUT/ Rejection ADCIN 7.5/15 0.6 2 SPI Simultaneous No 7.5/15 6.8 6.8 0.6 2 No 7.5/15 0.6 0.6 0.6 2 2 2 IC SPI I2 C SPI Simultaneous Simultaneous Simultaneous Simultaneous No No No 7.5/15 0.6 2 LTC2486 16 4 7.5/15 0.6 2 LTC2487 16 4 7.5/15 0.6 2 LTC2488 16 4 6.8 0.6 2 LTC2489 16 4 6.8 0.6 2 LTC2492 24 4 7.5/15 0.6 LTC2493 24 4 7.5/15 LTC2494 16 16 LTC2495 16 16 2 IC SPI 2 I2 C SPI Simultaneous No Simultaneous No Simultaneous No Simultaneous No Simultaneous No 2 I2 C SPI Simultaneous No 0.6 2 I2C Simultaneous No 7.5/15 0.6 2 SPI Simultaneous Yes 7.5/15 0.6 2 I2 C SPI Simultaneous Yes Simultaneous LTC2496 16 16 6.8 0.6 2 LTC2497 16 16 6.8 0.6 2 Yes 24 16 7.5/15 0.6 2 IC SPI Simultaneous LTC2498 Simultaneous Yes LTC2499 24 16 7.5/15 0.6 2 I2 C Simultaneous Yes 2 5V 5V 51.1k 0.1µF 0.1µF TO IN+ IIN+ = 0 10k-100k 51.1k 5V 102k + 10k–100k 0.1µF 1k LT1497 – TO IN+ 0.1µF TO IN– IIN– = 0 1k Centered Sensor TO IN– 0.1µF Grounded, Buffered Sensor Integrated Temperature Sensor 2.7V TO 5.5V 0.1µF CH0 CH1 • • • CH7 CH8 • • • CH15 Yes IN+ 16-CHANNEL MUX 10µF VCC MUXOUT/ ADCIN REF+ SDI SCK SDO CS 24-BIT EASY DRIVE ∆Σ ADC IN– REF– 4-WIRE SPI INTERFACE COM fO TEMPERATURE SENSOR OSC MUXOUT/ ADCIN 24-Bit First Generation Differential ∆∑ ADC Family GUARANTEED 2°C ACCURACY TEMP SENSOR ON MULTICHANNEL EASY DRIVE ADCs ≈1µV Noise Core Part Number Speed # Ch (sps) Bits LTC2410 LTC2411 LTC2411-1 LTC2412 LTC2413 LTC2415 LTC2415-1 24 24 24 24 24 24 24 1 1 1 2 1 1 1 LTC2414 LTC2418 24 24 8 16 7.5 7.5 7.5 7.5 6.9 15 13.7 7.5 7.5 Noise (µV) INL (ppm) I/O 50Hz/60Hz* MUXOUT/ Rejection ADCIN 0.8 1.45 1.45 0.8 0.8 1.1 1.1 1 1 1 1 1 1 1 SPI SPI SPI SPI SPI SPI SPI Selectable Selectable Simultaneous Selectable Simultaneous Selectable Simultaneous No No No No No No No 1 1 1 1 SPI SPI Selectable Selectable No No Basic Weigh Scale + LT1019 R1 REF + REF – 350Ω BRIDGE IN + IN – R2 VREF SDO SCK LTC2410 CS GND fO 20-Bit First Generation Differential ∆∑ ADC Family Shrunk Sample Capacitor, Easier to Drive, Allows Overclocking Part Number Bits # Ch LTC2430 LTC2431 LTC2435 LTC2435-1 20 20 20 20 1 1 1 1 Speed (sps) Noise (µV) INL (ppm) I/O 50Hz/60Hz* MUXOUT/ Rejection ADCIN 7.5 7.5 15 2.8 2.8 4 4 2 2 2 2 SPI SPI SPI SPI Selectable Selectable Selectable Simultaneous 13.6 No No No No Low Cost 16-Bit Family 2.7V TO 5.5V LTC2439-1 REF + 16-Bit First Generation Differential ∆∑ ADC Family 8-CHANNEL DIFFERENTIAL MULTIPLEXER ≈1µV Noise Core Part Number Speed # Ch (sps) Noise (µV) INL (ppm) Bits LTC2433-1 16 1 LTC2436-1 16 LTC2439-1 16 50Hz/60Hz* MUXOUT/ Rejection ADCIN I/O 6.8 1.45 1 SPI Simultaneous No 2 6.8 0.8 1 SPI Simultaneous No 16 6.8 1 1 SPI Simultaneous No *Simultaneous 50Hz/60Hz rejection; Selectable 50Hz or 60Hz notch filter L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and Easy Drive and No Latency Delta-Sigma are trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. COM REF – 16-BIT ∆ Σ ADC SDI SCK SDO CS 4-WIRE SPI INTERFACE 0V to 5V Input Range 24-Bit First Generation Single-Ended ∆∑ ADC Family 12.5% Underrange and Overrange Capability Part Number Bits LTC2400 LTC2401 LTC2402 LTC2404 LTC2408 24 24 24 24 24 Speed # Ch (sps) 1 1 2 4 8 7.5 7.5 7.5 7.5 7.5 Noise (µV) INL (ppm) I/O 1.5 3 3 1.5 1.5 2 2 2 2 2 SPI SPI SPI SPI SPI VCC + 0.3V 50Hz/60Hz* MUXOUT/ Rejection ADCIN Selectable Selectable Selectable Selectable Selectable 9/8VREF VREF No No No Yes Yes NORMAL INPUT RANGE 1/2VREF ABSOLUTE MAXIMUM INPUT RANGE EXTENDED INPUT RANGE 0 –1/8VREF –0.3V LTC2400 Input Range 20-Bit First Generation Single-Ended ∆∑ ADC Family Shrunk Sample Capacitor, Easier to Drive, Allows Overclocking Part Number LTC2420 LTC2421 LTC2422 LTC2424 LTC2428 Bits 20 20 20 20 20 # Ch 1 1 2 4 8 Speed (sps) 7.5 7.5 7.5 7.5 7.5 Noise (µV) 6 6 6 6 6 INL (ppm) 4 4 4 4 4 I/O 50Hz/60Hz* MUXOUT/ Rejection ADCIN SPI SPI SPI SPI SPI Selectable Selectable Selectable Selectable Selectable No No No Yes Yes Buffer for Max Performance 0.01µF – + 1/2 LTC2051HV 0.01µF – IN – + 5V 4.7µF VCC REF + 5k IN+ 10µF 0.01µF LT1236-5 8V TO 12V 0.1µF REF – 10Ω BUSY fO LTC2440 SCK IN + 1µF SDO CS IN – 5k SDI EXT 10Ω 1µF 1/2 LTC2051HV MUXOUT/ADCIN for Easy Buffering 5V 24-Bit High Speed ∆∑ ADC Family REF+ 24 24 24 24 24 24 24 24 # Ch 1 8 8 16 4 8 8 16 Speed (sps) 4000 8000 8000 8000 8000 8000 8000 8000 Noise (µV) 0.2 0.2 0.2 0.2 0.22 0.28 0.28 0.28 INL (ppm) 3 3 5 3 2 3 3 3 I/O SPI SPI SPI SPI SPI SPI SPI SPI 50Hz/60Hz* MUXOUT/ Rejection ADCIN Simultaneous Simultaneous Simultaneous Simultaneous Simultaneous Simultaneous Simultaneous Simultaneous REF – No Yes Yes Yes Yes No No No Bits LTC2450 LTC2450-1 LTC2451 LTC2452 LTC2453 LTC2460 LTC2461 LTC2462 LTC2463 LTC2470 16 16 16 16 16 16 16 16 16 16 LTC2471 16 Speed # Ch (sps) 1 1 1 1 1 1 1 1 1 1 1 30 60 60 60 60 60 60 60 60 833 833 Noise (µV) INL (LSB) I/O 1.4 1.4 1.4 1.4 1.4 2.2 2.2 2.2 2.2 3 2 2 2 1 2 1 1 1 1 8 SPI SPI I2 C SPI I2 C SPI I2 C SPI I2 C SPI 0.1µF + ½LT1368 – 0.1µF 0V Integrated Amplifier 4.5V TO 15V V+ HI-Z 2-CHANNEL DIFFERENTIAL / 4-CHANNEL SINGLE ENDED 3 CH1 CH2 – AUTOCAL + CH3 = EXTERNAL OSCILLATOR = INTERNAL OSCILLATOR (SIMULTANEOUS 50Hz/60Hz REJECTION AT 6.9Hz OUTPUT RATE) 4.5V TO 5.5V VREF + VCC VARIABLE SPEED/ RESOLUTION 24-BIT ∆Σ ADC + – fO SDI SCK SDO CS 4-WIRE SPI INTERFACE COM V– Differential Internal Input Reference No No No Yes Yes No No Yes Yes No CS (EXTERNAL AMPLIFIERS) 5V CH0 Part Number SDO + – LTC2442 Input Current Cancellation, Easy to Drive, Simple RC Filters with No Accuracy Penalty SCK ½LT1368 0.1µF Ultra-Tiny 16-Bit ∆∑ ADC Family 24-Bit ∆∑ ADC ADCINN LTC2440 LTC2445 LTC2447 LTC2449 LTC2442 LTC2444 LTC2446 LTC2448 Bits SDI LTC2449 ADCINP Part Number CH0-CH15/ 8-/16COM Channel MUX MUXOUTN MUXOUTP 200nVRMS,10-Speed Gearshift Core No No No No No Yes Yes Yes Yes Yes 8 I2 C No Yes LTC2472 16 1 833 3 8 SPI Yes Yes LTC2473 16 1 833 3 8 I2 C Yes Yes 0.1µF VREF – GND –15V TO 0V Built-In Reference 2.7V TO 5.5V 0.1µF 0.1µF 0.1µF 10µF 0.1µF REFOUT 10k 10k 10k R IN+ COMP LTC2473 IN– 0.1µF REF– AO VCC SCL SDA I2C INTERFACE GND *Simultaneous 50Hz/60Hz rejection; Selectable 50Hz or 60Hz notch filter www.linear.com/NLDS_ADC n 1-800-4-LINEAR 0614A