1 Features

1? Qualified for Automotive Applications

? AEC-Q100 Qualified With the Following Results:

– Device Temperature Grade 2: –40°C to 105°C

Ambient Operating Temperature Range

– Device HBM ESD Classification Level H2

– Device CDM ESD Classification Level C6

? 14-Bit Resolution With no Missing Codes

? Specified Performance Up to 200 kSPS

? Pseudo Differential Inputs

? Zero-Power Track Mode

? ±150-mV Swing Around GND on Negative Input

? Separate Digital I/O and Analog Supplies

? Operating Temperature Range of –40°C to

+105°C

? SPI?, QSPI?, Microwire, DSP-Compatible Serial

Interface

? Conversion Rate: 50 kSPS to 200 kSPS

? INL (–15°C to +65°C): ±0.95 LSB (max)

? DNL: ±0.95 LSB (max)

? Post Calibration TUE (–15°C to +65°C): ±0.5 mV

(max)

? SNR: 80 dBc (min)

? THD: –97 dBc (typ)

? ENOB: 13.0 Bits (min)

? Power Consumption:

– 200 kSPS, 5 V: 4.8 mW (typ)

– Power-Down, 5 V: 13 μW (typ)

2 Applications

? Automotive Battery Management

? Automotive Navigation

? Portable Systems

? Medical Instruments

? Instrumentation and Control Systems

? Motor Control

? Direct Sensor Interface

3 Description

The ADC141S628-Q1 device is a 14-bit, 200-kSPS,

pseudo-differential, analog-to-digital converter (ADC)

that is AEC-Q100 grade 2 qualified. The converter is

based on a successive-approximation register (SAR)

architecture and has pseudo-differential analog

inputs. The signal path is maintained from the internal

sample-and-hold circuits throughout the ADC to

provide excellent common-mode noise rejection. The

ADC141S628-Q1 features a zero-power track mode

where the ADC is consuming the minimum amount of

supply current while the internal sampling capacitor

tracks the applied analog input voltage.

The serial data output of the ADC141S628-Q1 is

straight binary and is compatible with several

standards, such as SPI, QSPI, Microwire, and many

common DSP serial interfaces. The ADC141S628-Q1

has no latency which means the conversion result is

clocked out by the serial clock input and is the result

of the conversion currently in progress.

The ADC141S628-Q1 can be operated with

independent analog (VA) and digital input/output

(VIO) supplies. VA and VIO can range from 4.5 V to

5.5 V and can be set independent of each other. This

functionality allows a user to maximize performance

and minimize power consumption. Similarly, the

ADC141S628-Q1 uses an external reference that can

be varied from 1.0 V to VA allowing users to optimize

the full dynamic range of the input. The pseudodifferential

input, low power consumption, and small

size make the ADC141S628-Q1 ideal for remote data

acquisition applications.

Operation is specified over the temperature range of

–40°C to +105°C and clock rates of 0.36 MHz to

3.6 MHz. The ADC141S628-Q1 is available in a 10-

lead package.