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ADC088S022CIMT
Texas Instruments
IC ADC 8BIT SAR 16TSSOP
2510 Pcs New Original In Stock
8 Bit Analog to Digital Converter 8 Input 1 SAR 16-TSSOP
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5.0 / 5.0
- (249 Ratings)
ADC088S022CIMT
Product Overview
1229401
DiGi Electronics Part Number
ADC088S022CIMT-DGManufacturer
Texas Instruments
ADC088S022CIMT
Description
IC ADC 8BIT SAR 16TSSOPInventory
2510 Pcs New Original In Stock
8 Bit Analog to Digital Converter 8 Input 1 SAR 16-TSSOP
Quantity
Minimum 1
Minimum 1
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ADC088S022CIMT Technical Specifications
Category
Data Acquisition, Analog to Digital Converters (ADC)
Packaging
-
Series
-
Product Status
Last Time Buy
Number of Bits
8
Sampling Rate (Per Second)
200k
Number of Inputs
8
Input Type
Single Ended
Data Interface
SPI, DSP
Configuration
MUX-S/H-ADC
Ratio - S/H:ADC
1:1
Number of A/D Converters
1
Architecture
SAR
Reference Type
Supply
Voltage - Supply, Analog
2.7V ~ 5.25V
Voltage - Supply, Digital
2.7V ~ 5.25V
Features
-
Operating Temperature
-40°C ~ 105°C
Package / Case
16-TSSOP (0.173", 4.40mm Width)
Supplier Device Package
16-TSSOP
Mounting Type
Surface Mount
Base Product Number
ADC088S022
Datasheet & Documents
HTML Datasheet
ADC088S022CIMT-DG
Environmental & Export Classification
RoHS Status
ROHS3 Compliant
Moisture Sensitivity Level (MSL)
1 (Unlimited)
REACH Status
REACH Unaffected
ECCN
EAR99
HTSUS
8542.39.0001
Additional Information
Standard Package
92
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Reviews
5.0/5.0-(Show up to 5 Ratings)
de desembre 02, 2025
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de desembre 02, 2025
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Frequently Asked Questions (FAQ)
Can the ADC088S022CIMT be safely replaced with the ADC088S022CIMT/NOPB in an existing 5V industrial sensor design, and what are the key reliability risks during transition?
Yes, the ADC088S022CIMT/NOPB is a direct drop-in replacement for the ADC088S022CIMT and is functionally identical, including electrical characteristics, pinout, and timing. However, since both parts are under 'Last Time Buy' status from Texas Instruments, the primary risk isn’t compatibility but long-term supply chain continuity. If your design has a lifecycle beyond current inventory, consider qualifying a modern alternative like the ADS7040 (also 8-bit, 200 kSPS, SPI, 16-TSSOP) early to avoid future redesigns. Always validate firmware timing margins, as subtle SPI clock polarity or phase differences—though unlikely—can cause intermittent failures in marginal systems.
What are the real-world sampling accuracy limitations of the ADC088S022CIMT when powered from a noisy 3.3V digital rail in a mixed-signal PCB layout?
The ADC088S022CIMT uses a supply-referenced architecture (VREF = VDD), so any noise or ripple on the 3.3V rail directly modulates the reference voltage, degrading effective resolution. In practice, even 10–20 mV of high-frequency noise can introduce ±2–3 LSB errors at 8-bit resolution. To mitigate this, use a dedicated low-noise LDO (e.g., TPS7A20) for the analog supply, place a 100 nF ceramic capacitor within 2 mm of the VDD pin, and isolate the analog ground plane from digital return currents. Never share the same via or trace between digital I/O and ADC power—this is a common source of correlated noise that datasheet specs won’t reveal.
How does the ADC088S022CIMT compare to the Microchip MCP3008 for multi-channel sensor monitoring in terms of integration risk and timing predictability?
While both offer 8 channels and SPI interfaces, the ADC088S022CIMT (8-bit, 200 kSPS) trades resolution for speed and lower power compared to the 10-bit MCP3008 (200 kSPS). The critical difference lies in timing: the ADC088S022CIMT has a fixed conversion time of 4.5 µs per sample, enabling deterministic sampling useful in control loops, whereas the MCP3008’s conversion time varies slightly with input voltage due to its SAR architecture nuances. If your application requires tightly synchronized sampling across channels (e.g., phase-sensitive measurements), the ADC088S022CIMT’s consistent timing reduces software jitter. However, the MCP3008’s higher resolution may justify its use if signal integrity allows—just ensure your MCU SPI can handle its slightly different command protocol.
Is it safe to operate the ADC088S022CIMT at -40°C in a battery-powered outdoor enclosure with intermittent thermal cycling, and what derating considerations apply?
The ADC088S022CIMT is rated for -40°C to +105°C operation, so cold-start functionality is supported. However, at -40°C, internal switch resistances increase, potentially causing settling errors on high-impedance sources (>10 kΩ). If your sensor outputs have high source impedance, add a unity-gain buffer (e.g., TLV9061) to maintain accuracy. Also, repeated thermal cycling between extreme temperatures can fatigue solder joints in the 16-TSSOP package—ensure proper pad design with thermal relief and consider underfill if vibration is present. Monitor long-term drift: while not specified in the datasheet, SAR ADCs like the ADC088S022CIMT typically exhibit increased offset drift below -20°C, which may require periodic calibration in precision applications.
Can I daisy-chain multiple ADC088S022CIMT devices on a single SPI bus without additional GPIOs, and what are the signal integrity risks at 20 MHz SCLK?
The ADC088S022CIMT does not support native daisy-chaining; each device requires its own CS (Chip Select) line, meaning you cannot reduce GPIO count through hardware chaining like with some SPI ADCs (e.g., ADS8320). Attempting to share CS lines will cause bus contention and corrupted data. At 20 MHz SCLK (near the max rated speed), transmission line effects become significant—especially with >10 cm traces. Use series termination resistors (22–33 Ω) near the MCU on SCLK and MOSI lines, keep traces short and impedance-controlled, and avoid routing near switching power supplies. If routing constraints force long traces, reduce SCLK to ≤10 MHz and verify setup/hold times with an oscilloscope, as the ADC088S022CIMT has strict t_SU and t_HD requirements that margin erosion can violate silently.
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ADC088S022CIMT CAD Models
Texas Instruments ADC088S022CIMT PCB symbols & footprints
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