LTC1400 - Complete SO-8, 12-Bit, 400ksps ADC with Shutdown
Features
- Complete 12-Bit ADC in SO-8
- Single Supply 5V or ±5V Operation
- Sample Rate: 400ksps
- Power Dissipation: 75mW (Typ)
- 72dB S/(N D) and -80dB THD at Nyquist
- No Missing Codes over Temperature
- NAP Mode with Instant Wake-Up: 6mW
- SLEEP Mode: 30µW
- High Impendance Analog Input
- Input range (1mV/LSB): 0V to 4.096 or ±2.048V
- Internal Reference Can be Overdriven Externally
- 3-Wire Interface to DSPs and Processors (SPI and MICROWIRE™ Compatible)
Typical Application
Description
The LTC1400 is a complete 400ksps, 12-bit A/D converter which draws only 75mW from a 5V or ±5V supplies. This easy-to-use device comes complete with a 200ns sample-and-hold and a precision reference. Unipolar and bipolar conversion modes add to the flexibility of the ADC. The LTC1400 is capable of going into two power saving modes: NAP and SLEEP. In NAP mode, it consumes only 6mW of power and can wake up and convert immediately. In the SLEEP mode, it consumes 30µW of power typically. Upon power-up from SLEEP mode, a reference ready (REFRDY) signal is available in the serial data word to indicate that the reference has settled and the chip is ready to convert. The LTC1400 converts 0V to 4.096V unipolar inputs from a single 5V supply and ±2.048V bipolar inputs from ±5V supplies. Maximum DC specs include ±1LSB INL, ±1LSB DNL and 45ppm/°C drift over temperature. Guaranteed AC performance includes 70dB S/(N D) and 76dB THD at an input frequency of 100kHz, over temperature. The 3-wire serial port allows compact and efficient data transfer to a wide range of microprocessors, microcontrollers and DSPs.
Packaging
For complete and up to date package information and drawings, please refer to our packaging page
SO-8
Order Info
- Part numbers ending in PBF are lead free. Please contact LTC marketing for information on lead based finish parts.
- Part numbers containing TR or TRM are shipped in tape and reel or 500 unit mini tape and reel, respectively
- Please refer to our general ordering information or the product datasheet for more details
Package Variations and Pricing
| Part Number | Package | Pins | Temp | Price (1-99) | Price (1k)* | RoHS Data |
|---|---|---|---|---|---|---|
| LTC1400CS8 | SO | 8 | C | $5.90 | $4.90 | View |
| LTC1400CS8#PBF | SO | 8 | C | $5.90 | $4.90 | View |
| LTC1400CS8#TR | SO | 8 | C | $4.96 | View | |
| LTC1400CS8#TRPBF | SO | 8 | C | $4.96 | View | |
| LTC1400IS8 | SO | 8 | I | $6.55 | $5.40 | View |
| LTC1400IS8#PBF | SO | 8 | I | $6.55 | $5.40 | View |
| LTC1400IS8#TR | SO | 8 | I | $5.46 | View | |
| LTC1400IS8#TRPBF | SO | 8 | I | $5.46 | View | |
| Buy Now • Request Samples | ||||||
Demo Boards
Linear Technology offers many demo boards free of charge to qualified customers. Contact your local sales office or distributor to inquire about a demo board. Certain demo boards are also available for sale via credit card on this website. Demo boards are for evaluation purposes only. It remains the customer’s responsibility to verify proper and reliable operation in the actual end application.Click here to view our complete list of demo boards
Applications
- High Speed Data Acquisition
- Digital Signal Processing
- Multiplexed Data Acquisition Systems
- Audio and Telecom Processing
- Digital Radio
- Spectrum Analysis
- Low Power and Battery-Operated Systems
- Handheld or Portable Instruments
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Technical Support
- For immediate technical assistance, contact your local sales office or distributor or call 1-800-4-LINEAR (US customers only) or 408-432-1900.
- For less urgent requests, please complete our Technical Support Request Form. Please allow 2-3 business days for reply.