Analog Devices Inc. LTC1196-2ACS8#TRPBF

Overview

LTC1196-2ACS8#TRPBF from Analog Devices (formerly Linear Technology) is a high-speed, 8-bit successive approximation ADC with differential analog inputs, 1MHz maximum sampling rate at 5V, ±1/2 LSB total unadjusted error over temperature, and SO-8 plastic package. It operates from 2.7V to 6V, consumes 11mA supply current at 5V full speed, and targets compact data acquisition in disk drives and portable instrumentation.

For engineers reviewing the LTC1196-2ACS8#TRPBF datasheet, LTC1196-2ACS8#TRPBF pinout, LTC1196-2ACS8#TRPBF application, or LTC1196-2ACS8#TRPBF equivalent, key selection criteria include its differential input architecture, 1MHz sampling capability at 5V, auto-shutdown absence (vs. LTC1198), SO-8 thermal performance (θ_JA = 175°C/W), and guaranteed ±1/2 LSB TUE for precision ratiometric systems.

Technical Context

The LTC1196-2ACS8#TRPBF implements a switched-capacitor SAR architecture with integrated sample-and-hold, supporting true differential input operation where +IN and –IN define the conversion span relative to VREF. Its serial interface uses 3-wire protocol (CS, CLK, DOUT) with MSB-first output and fixed 12-clock cycle timing.

Unlike the LTC1198 variant, this device lacks multiplexer control and auto-shutdown - it remains active when CS is low and draws continuous ICC (11mA max at 5V, f_SMPL = 1MHz). Conversion time is fixed at 600ns (1.2MHz theoretical max), with t_CONV specified as 600ns min and 710ns max under A-grade conditions.

Key Specifications

Pinout & Package

Package: 8-lead plastic SO (SO-8), 150°C max junction temperature, θ_JA = 175°C/W.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 8-bit high-speed ADC applications.

Compared with ADS7822U and MAX1113ECM+, the LTC1196-2ACS8#TRPBF delivers superior differential signal integrity, guaranteed ±1/2 LSB TUE over temperature, and flexible VREF/VCC decoupling - critical for precision data acquisition where sensor common-mode rejection and system-level calibration reduction are design priorities.

Availability

LTC1196-2ACS8#TRPBF is available at Aetrix Electronics and suitable for high-speed disk drive read channels, portable medical sensor interfaces, and industrial PLC analog input modules requiring stable component supply and long-term manufacturability.

Supply support for LTC1196-2ACS8#TRPBF includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Analog Devices, Inc. (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets.

The LTC1196-2ACS8#TRPBF belongs to ADI's legacy Linear Technology precision data acquisition product line, engineered for compact, high-speed, low-power 8-bit ADC applications where differential input fidelity and guaranteed error performance are essential.

FAQ

What is the maximum sampling rate of the LTC1196-2ACS8#TRPBF at 3V supply?

The LTC1196-2ACS8#TRPBF achieves a maximum sampling rate of 333 kHz at VCC = 2.7V (minimum rated supply), per the "AC CHARACTERISTICS" table on page 6 of the datasheet. This is derived from the f_SMPL(MAX) specification for LTC1196-2 under 2.7V operation, where typical performance reaches 333 kHz with 383 kHz possible under ideal conditions. The 1MHz rating applies only at 5V.

Does the LTC1196-2ACS8#TRPBF support auto-shutdown mode?

No, the LTC1196-2ACS8#TRPBF does not support auto-shutdown. Auto-shutdown is exclusive to the LTC1198 family (e.g., LTC1198-2ACS8#TRPBF), which powers down to ~1nA when CS is high. The LTC1196-2ACS8#TRPBF remains fully active during CS low and draws continuous supply current - 11 mA max at 5V, 4.5 mA max at 2.7V - with no low-power idle state.

Can the LTC1196-2ACS8#TRPBF operate with a 1V reference voltage?

Yes, the LTC1196-2ACS8#TRPBF supports VREF as low as 1V, enabling a 1V full-scale input span. The datasheet explicitly states "1V to 5V Input Span Range (LTC1196)" and confirms analog input range extends from –0.05V to VCC + 0.05V. At VREF = 1V, the device maintains 8-bit resolution with proportionally reduced LSB size (3.9 mV), suitable for low-amplitude sensor signals.

What is the guaranteed total unadjusted error for the LTC1196-2ACS8#TRPBF over temperature?

The LTC1196-2ACS8#TRPBF is an A-grade device with guaranteed total unadjusted error (TUE) of ±1/2 LSB over the full operating temperature range of 0°C to 70°C. This specification includes offset, full-scale, linearity, multiplexer (not applicable here), and hold-step errors - confirmed in the "CONVERTER AND MULTIPLEXER CHARACTERISTICS" table on page 3 of the datasheet.

Is the LTC1196-2ACS8#TRPBF pin-compatible with other variants in the LTC1196 family?

Yes, all LTC1196 variants - including LTC1196-1ACS8#TRPBF, LTC1196-2ACS8#TRPBF, LTC1196-1BCS8#TRPBF, and LTC1196-2BCS8#TRPBF - share identical SO-8 pinout, package dimensions, and pin functions. The suffix "-1" vs "-2" denotes different AC performance grades (e.g., conversion time, sampling rate), while "A" vs "B" indicates error grade (A = ±1/2 LSB TUE, B = ±1 LSB TUE); none affect physical compatibility.