TSM1285: A SINGLE-SUPPLY, 12-BIT, 300KSPS SERIAL-OUTPUT ADC WITH INTERNAL REFERENCE
FUNCTIONAL BLOCK DIAGRAM
APPLICATIONS
- Process Control and Factory Automation
- Data and Low-frequency Signal Acquisition
- Portable Data Logging
- Pen Digitizers & Tablet Computers
- Medical Instrumentation
- Battery-powered Instruments
KEY SPECIFICATIONS
- Alternate Source for MAX1285 and higher-speed upgrade to MAX1240 and MAX1241
- Single-Supply Operation: +2.7V to +3.6V
- DNL & INL: ±1LSB (max)
- 300ksps Sampling Rate
- Low Conversion-Mode Supply Current: 2.5mA @ 300ksps
- Low Supply Current in Shutdown: 2µA
- Internal Track-and-Hold
- Internal +2.5V Reference
- 3-wire Serial Interface: SPI/QSPI/MICROWIRE
- 8-Pin SOIC Package
KEY SPECIFICATIONS – TSM1285
| Part Number | VDD (min) (V) |
VDD (max) (V) |
IDD (mA) | INL (LSB) |
DNL (LSB) |
Throughput Rate (ksps) |
Analog Input Type |
1K Price | Request Free Samples |
|---|---|---|---|---|---|---|---|---|---|
| TSM1285 | 2.7 | 3.6 | 2.5 | 1 | 1 | 300 | SE – Unipolar | $1.20 | Request Here |
DESCRIPTION
The TSM1285 – a single-supply, single-channel, 12-bit analog-to-digital converter (ADC) – is an alternate source for the MAX1285 and a higher-speed upgrade to the MAX1240 and MAX1240 ADCs. The TSM1285 combines a high-bandwidth track-and-hold (T/H), a high-speed serial digital interface, an internal +2.5V reference, and low conversion-mode power consumption. The TSM1285 operates from a single +2.7V to+3.6V supply and draws less than 2.5mA at 300ksps.
Connecting directly to any SPI™/QSPI™/ MICROWIRE™ microcontrollers and other interface-compatible computing devices, the TSM1285’s 3-wire serial interface is easy to use and doesn’t require separate, external logic. An external serial-interface clock controls the TSM1285’s conversion process and its output shift register operation.
In PCB-space-conscious, low-power remote-sensor and data-acquisition applications, the TSM1285 is an excellent choice for its low-power, ease-of-use, and small-package-footprint attributes.
The TSM1285BC is fully specified over the 0°C to +70°C temperature range. TSM1285BE is fully specified over the -40°C to +85°C temperature range. Both products are available in a 8-pin SOIC package.
PIN ASSIGNMENTS / PACKAGE OUTLINES
RoHS/Pb-free Packaging Information: Touchstone Semiconductor supplies only lead-free packaging.
ORDERING INFORMATION AND PRICING
| Part Number | Status | VDD (min)
(V) |
VDD (max)
(V) |
IDD (mA) | Package /Pin Count |
Package Quantity /Carrier |
Temperature Range |
1k+ Price |
|
|---|---|---|---|---|---|---|---|---|---|
| TSM1285BCSA+ | Active | +2.7V | +3.6V | 2.5 @ 300ksps | SOIC-8 | 97 Units /Tube |
0°C to +70°C | $1.20 | Check Inventory |
| TSM1285BCSA+T | Active | +2.7V | +3.6V | 2.5 @ 300ksps | SOIC-8 | 2500 Units /Tape & Reel |
-40°C to +85°C | $1.20 | Check Inventory |
| TSM1285BESA+ | Active | +2.7V | +3.6V | 2.5 @ 300ksps | SOIC-8 | 97 Units /Tube |
0°C to +70°C | $1.20 | Check Inventory |
| TSM1285BESA+T | Active | +2.7V | +3.6V | 2.5 @ 300ksps | SOIC-8 | 2500 Units /Tape & Reel |
-40°C to +85°C | $1.20 | Check Inventory |
Nota bene: The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (USD or US$, FOB USA per unit for the stated volume), and is subject to change without notice. Quantity pricing may vary substantially. International prices may differ because of local duties, taxes, fees, and currency exchange rates. For volume-specific pricing information and/or delivery quotes, please contact your local Touchstone Semiconductor manufacturer’s sales representative or authorized distributor.