CS5101A

Features:

`Monolithic CMOS A/D Converters
- Inherent Sampling Architecture
- 2-Channel Input Multiplexer
- Flexible Serial Output Port
`Ultra-Low Distortion
- S/(N+D): 92 dB
- THD: 0.001%
`Conversion Time
- CS5101A: 8 s
- CS5102A: 40 s
`Linearity Error: ±0.001% FS
- Guaranteed No Missing Codes
lSelf-Calibration Maintains Accuracy
- Over Time and Temperature
`Low Power Consumption
- CS5101A: 320 mW
- CS5102A: 44 mW
- Power-down Mode: <1 mW
`Evaluation Board Available


Pinout




Specifications

Parameter			Symbol	Min	Typ	Max	Unit
DC Power Supplies	Positive Digital Negative Digital Positive Analog Negative Analog	(Note 35)	VD+ VDVA+ VA-	-0.3 0.3 -0.3 0.3	- - - -	6.0 -6.0 6.0 -6.0	V V V V
Input Current, Any Pin Except Supplies		(Note 36)	Iin	-	-	±10	mA
Analog Input Voltage (AIN and VREF pins)			VINA	(VA-)-0.3	-	(VA+)+0.3	V
Digital Input Voltage			VIND	-0.3	-	(VA+)+0.3	V
Ambient Operating Temperature			TA	-55	-	125	°C
Storage Temperature			Tstg	-65	-	150	°C
Ambient Operating Temperature			TA	-55	-	125	°C
Storage Temperature			Tstg	-65	-	150	°C

Description

The CS5101A and CS5102A are 16-bit monolithic CMOS analog-to-digital converters capable of 100 kHz (5101A) and 20 kHz (5102A) throughput. The CS5102A's low power consumption of 44 mW, coupled with a power down mode, makes it particularly suitable for battery powered operation.

On-chip self-calibration circuitry CS5101A achieves nonlinearity of ±0.001% of FS and guarantees 16-bit no missing codes over the entire specified temperature range. Superior linearity also leads to 92 dB S/(N+D) with harmonics below -100 dB. Offset and full-scale errors are minimized during the calibration cycle, eliminating the need for external trimming.

The CS5101A and CS5102A each consist of a 2-channel input multiplexer, DAC, conversion and calibration microcontroller, clock generator, comparator, and serial communications port. The inherent sampling architecture of the device eliminates the need for an external track and hold amplifier.

CS5101A converters' 16-bit data is output in serial form with either binary or 2's complement coding. Three output timing modes are available for easy interfacing to microcontrollers and shift registers. Unipolar and bipolar input ranges are digitally selectable.