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See Technical Specifications

ADS7044IDCUT

Ultra-Low-Power Ultra-Small-Size SAR ADC | 12 Bit | 1MSPS | Fully Differential

Manufacturer:

Texas Instruments, Inc
Mfr.Part #:

ADS7044IDCUT
Datasheet:

ADS7044IDCUT Datasheet (PDF)
Number of Bits:

12
Sampling Rate (Per Second):

1M
Number of Inputs:

1
Input Type:

Differential
EDA/CAD Models:

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ADS7044IDCUT General Description

The ADS7044 is a 1-MSPS, analog-to-digital converter (ADC). The device supports a wide analog input voltage range (±1.65 V to ±3.6 V) and includes a capacitor-based, successive-approximation register (SAR) ADC with an inherent sample-and-hold circuit. The SPI-compatible serial interface is controlled by the CS and SCLK signals. The input signal is sampled with the CS falling edge and SCLK is used for conversion and serial data output. The device supports a wide digital supply range (1.65 V to 3.6 V), enabling direct interface to a variety of host controllers. The device complies with the JESD8-7A standard for normal DVDD range (1.65 V to 1.95 V).

The device is available in 8-pin, miniature, leaded, and X2QFN packages and is specified for operation from –40°C to 125°C. Miniature form-factor and extremely low-power consumption make this device suitable for space-constrained, battery-powered applications.

Key Features

Industry’s First SAR ADC with Nanowatt Power Consumption:
- 261 µW at 1 MSPS with 1.8-V AVDD
- 900 µW at 1 MSPS with 3-V AVDD
- 90 µW at 100 kSPS with 3-V AVDD
- Less than 1 µW at 1 kSPS with 3-V AVDD
Industry’s Smallest SAR ADC:
- X2QFN-8 Package with 2.25-mm² Footprint
1-MSPS Throughput with Zero Data Latency
Wide Operating Range:
- AVDD: 1.65 V to 3.6 V
- DVDD: 1.65 V to 3.6 V (Independent of AVDD)
- Temperature Range: –40°C to 125°C
Excellent Performance:
- 12-Bit Resolution with NMC
- ±1-LSB (Max) DNL and INL
- 71-dB SNR with 3-V AVDD
- –85-dB THD with 3-V AVDD
Unipolar, Differential Input Range: –AVDD to AVDD
Integrated Offset Calibration
SPI™-Compatible Serial Interface: 16 MHz
JESD8-7A Compliant Digital I/O

Specifications

Category	Integrated Circuits (ICs)Data AcquisitionAnalog to Digital Converters (ADC)	Series	-
Number of Bits	12	Sampling Rate (Per Second)	1M
Number of Inputs	1	Input Type	Differential
Data Interface	SPI	Configuration	S/H-ADC
Ratio - S/H:ADC	1:1	Number of A/D Converters	1
Architecture	SAR	Reference Type	Supply
Voltage - Supply, Analog	1.65V ~ 3.6V	Voltage - Supply, Digital	1.65V ~ 3.6V
Features	-	Operating Temperature	-40°C ~ 125°C
Mounting Type	Surface Mount	Base Product Number	ADS7044
Resolution (Bits)	12	Sample rate (max) (ksps)	1000
Number of input channels	1	Interface type	SPI
Input type	Differential	Rating	Catalog
Reference mode	Supply	Input voltage range (max) (V)	3.6
Input voltage range (min) (V)	0	Operating temperature range (°C)	-40 to 125
Power consumption (typ) (mW)	0.261	Analog supply (min) (V)	1.65
Analog supply voltage (max) (V)	3.6	SNR (dB)	71
Digital supply (min) (V)	1.65	Digital supply (max) (V)	3.6
feature-resolution	12bit	feature-minimum-single-supply-voltage-v
feature-power-supply-type		feature-minimum-dual-supply-voltage-v
feature-maximum-dual-supply-voltage-v		feature-packaging	Tape and Reel
feature-maximum-single-supply-voltage-v		feature-rad-hard
feature-pin-count	8	feature-cecc-qualified	No
feature-esd-protection	Yes	feature-escc-qualified
feature-military	No	feature-aec-qualified	No
feature-aec-qualified-number		feature-eccn-code	EAR99
feature-svhc	Yes	feature-svhc-exceeds-threshold	No