A/D Converter offers low power and high speed..
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Press Release Summary:
Housed in pin-compatible SSOP-16 package, 8-channel, 200 ksps LTC1867 offers 16-bit no missing codes over temperature and ±2 LSBMAX INL. It draws 1.3 mA at full speed, and supply current automatically drops at reduced speeds. Unit includes serial interface and multiplexer that allows any combination of single-ended inputs or differential inputs in unipolar or bipolar mode. Accuracy is independent of shift clock frequency, and commercial and industrial temperature ranges are available.
Original Press Release:
16-Bit 200ksps Multichannel ADC Offers Low Power with Excellent Linearity
MILPITAS, CA - June 1, 2004 - Linear Technology Corporation introduces the LTC1867, a 16-bit, 8-channel, 200ksps analog to digital converter (ADC) offering low power without compromising speed or linearity. The LTC1867 draws only 1.3mA at full speed - roughly one-third the power of competing devices. The supply current automatically drops at reduced speeds, typically to 750uA at 100ksps and 200uA at 10ksps. This device maintains excellent DC performance, offering 16-bit no missing codes over temperature and ±2 LSBMAX INL. The LTC1867 is ideal for low power applications such as portable instrumentation, industrial process control and medical applications.
The LTC1867 offers an easy to use multiplexer and serial interface. The multiplexer allows any combination of single-ended inputs or differential inputs in either unipolar (0V to 4.096V) mode or bipolar (±2.048V) mode. The accuracy of the ADC is independent of the shift clock frequency, allowing these parts to operate in opto-isolation or very low power applications.
The LTC1867 also comes in a 12-bit version, the LTC1863. Both are available in SSOP-16 packages offering a pin compatible family for performance/cost optimization in end products. The LTC1867 and LTC1863 are available in the commercial and industrial temperature ranges.
Pricing begins at $7.75 each for the LTC1867 and $3.85 each for the LTC1863 in 1,000-piece quantities.
Summary of Features: LTC1863 & LTC1867
12-bit (LTC1863) & 16-bit (LTC1867) No Missing Codes Resolution
8 Swipe ended or 4 differential input channels
LTC1867: ±2 LSBMAX INL, 89dB SNR
LTC1863: ±1 LSBMAX INL, 73dB SNR
Single 5V Supply
On-Board 2.5V Reference
Low Supply Current: 1.3mA (Typ) at 200ksps
Autoshutdown Reduces Supply Current to 750uA at 100ksps and 200uA at 10ksps
SPI/MICROWIRE(TM) Compatible Serial I/O
Pin Compatible SSOP-16 Package
Company Background
Linear Technology Corporation was founded in 1981 as a manufacturer of high performance linear integrated circuits. Linear Technology products include high performance amplifiers, comparators, voltage references, monolithic filters, linear regulators, DC-DC converters, battery chargers, data converters, communications interface circuits, RF signal conditioning circuits, and many other analog functions. Applications for Linear Technology's high performance circuits include telecommunications, cellular telephones, networking products such as optical switches, notebook and desktop computers, computer peripherals, video/multimedia, industrial instrumentation, security monitoring devices, high-end consumer products such as digital cameras and MP3 players, complex medical devices, automotive electronics, factory automation, process control, and military and space systems.
Note: LT, AND LTC are registered trademarks of Linear Technology Corp.
