CHIPSEA

CS1238-SOP14

24 Bit Analog to Digital Converter 2 Input Sigma-Delta SOP-14

SOP-14RoHSActive

24-bit Sigma-Delta ADC

Manufacturer: CHIPSEA
Manufacturer part #: CS1238-SOP14
Store part #: C81829
Package / case: SOP-14
Category: Analog to Digital Converters (ADC)
Packaging: Tube-packed

Datasheet (PDF)

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11,653 in stock

#C81829

Stock & price checked 6 days ago

Quantity	Unit price	Pack price
1+	₹149.01	₹149.01
10+	₹120.08	₹1,200.80
50+	₹105.51	₹5,275.50
100+	₹91.15	₹9,115.00
500+	₹82.66	₹41,330.00
1,000+	₹78.32	₹78,320.00

Quantity (min 1)

1 × ₹149.01

₹149.01

excl. GST

₹175.83 incl. 18% GST

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Standard pack: 50 per tube

CS1238-SOP14

₹149.01 for 1 + GST

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Specifications

Operating Temperature: -40℃~+85℃
Interface: SPI
Quiescent Current (Iq): 100nA
Voltage - Supply: 3V~5.5V
Number of Channels: 2
Integral non - linearity: 15LSB
Voltage Reference: Built-in;External
Clock/Oscillator: Built-in
Clock Frequency: 5.2MHz
Features: Bipolar input;Built-in temperature sensor;Input buffer;Power-on reset
Resolution(Bits): 24;10Hz
ADC architecture: Sigma-Delta
Programmable Gain: Support

Packaging & compliance

RoHS: RoHS
Lifecycle: Active
Moisture sensitivity: MSL 3 (168 hours)
Packaging: Tube-packed
Standard pack: 50 / Tube
Sold per: Piece
Minimum order: 1
Unit weight: 0.28 g

Overview

CS1238 is a high-precision, low-power Sigma-Delta ADC chip featuring one Sigma-Delta ADC, two differential input channels, and one temperature sensor. The ADC employs a 2nd-order Sigma-Delta modulator with a low-noise instrumentation amplifier architecture for PGA amplification, with selectable gains of 1, 2, 64, and 128. At PGA=128, the effective resolution reaches 20.7 bits (operating at 5V). CS1238 integrates an on-chip RC oscillator, eliminating the need for an external crystal. CS1238 supports multiple functional mode configurations via DRDY/DOUT and SCLK, including temperature sensing, PGA selection, and ADC output data rate selection. CS1238 features a Power Down mode.

Applications

Industrial process control
Electronic scales
Liquid/gas chemical analysis
Blood analyzers
Smart transducers
Portable devices

Key features

Built-in crystal oscillator
Integrated temperature sensor
2-wire SPI interface with Power Down function, maximum rate 1.1MHz
24-bit no missing codes
Selectable PGA gain: 1, 2, 64, 128
Integrated 2-channel 24-bit no missing codes differential input; ENOB of 20.7 bits (at 5V) and 20.2 bits (at 3.3V) at PGA=128
P-P noise: PGA=128, 10Hz: 150nV
INL less than 0.0015%
Selectable output rate: 10Hz, 40Hz, 640Hz, 1.28kHz
Internal short function

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