TS7001 Datasheet, PDF (1/20 Pages) Touchstone Semiconductor Inc – A Micropower, 2-channel, 187.5-ksps, Serial-Output 12-bit SAR ADC

TS7001
A Micropower, 2-channel, 187.5-ksps, Serial-Output 12-bit SAR ADC
FEATURES
 Pin-for-pin, 1.5x Faster Upgrade to AD7887
 Single-supply Operation: +2.7V to +3.6V
 INL: ±1LSB
 One or Two Single-ended Analog Inputs
 Internal Wide-bandwidth Track-and-Hold
 Integrated +2.5-V Reference
 Flexible Power/Throughput-Rate Management
0.85mA at 187.5ksps (Internal VREF ON)
0.7mA at 187.5ksps (Internal VREF OFF)
 Shutdown-mode Supply Current: 1μA (max)
 SPI®/QSPI™/MICROWIRE™/DSP-Compatible
Serial Interfaces¹
 Operating Temperature Range: -40ºC to +85ºC
 8-pin MSOP Packaging
APPLICATIONS
Instrumentation and Control Systems
High-Speed Modems
Battery-powered systems:
Personal Digital Assistants, Medical
Instruments, Mobile Communications
DESCRIPTION
The TS7001 – a pin-for-pin, 1.5x faster alternate to
the AD7887 - is a self-contained, 2-channel, high-
speed, micropower, 12-bit analog-to-digital converter
(ADC) that operates from a single +2.7V to +3.6V
power supply. The TS7001 is capable of a 187.5-ksps
throughput rate with an external 3MHz serial clock
and draws 0.85mA supply current.
The wideband input track-and-hold acquires signals
in 500ns and features a single-ended sampling
topology. Output data coding is straight binary and
the ADC is capable of converting full power signals
up to 10 MHz. The ADC also contains an integrated
2.5V reference or the VREF pin can be overdriven by
an external reference.
The TS7001’s provides one or two analog inputs
each with an analog input range from 0 to V_REF. In
two-channel operation, the analog input range is 0V
to VDD. Efficient circuit design ensures low power
consumption of 2mW (typical) for normal operation
and 3μW in power-down operation.
The TS7001 is fully specified from -40ºC to +85ºC
and is available in 8-pin MSOP package.
FUNCTIONAL BLOCK DIAGRAM
1 _{SPI and QSPI are trademarks of Motorola, Inc.}
MICROWIRE is a trademark of National
Semiconductor Corporation
The Touchstone Semiconductor logo is a registered trademark of
Touchstone Semiconductor, Incorporated.
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