LM97600CIUT/NOPB Equivalent & Substitute Parts

Part Overview

The LM97600CIUT/NOPB is a 7.6-bit analog to digital converter manufactured by Texas Instruments, designed for high-speed data acquisition applications. This device features 4 differential inputs with simultaneous sampling capability and operates at a 5 GHz sampling rate using folding interpolating architecture. The product is currently obsolete, making identification of suitable substitute components essential for system redesign, legacy support, or component sourcing in applications requiring equivalent or enhanced performance characteristics.

Substiute Parts

LM97600CIUT/NOPB

Texas InstrumentsIn Stock: 3478LM97600CIUT/NOPB Datasheet

Current PartRFQ

ADC12DL3200ACF

Texas InstrumentsIn Stock: 1380ADC12DL3200ACF Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LM97600CIUT/NOPB is determined by the following critical parameters:

Architecture & Conversion Method: Both the main part and substitute must employ folding interpolating architecture to maintain equivalent signal processing characteristics.

Sampling Rate Capability: The main part operates at 5 GHz. Substitute parts must support equivalent or higher sampling rates to maintain system performance.

Resolution & Bit Depth: While the main part provides 7.6-bit resolution, substitute parts with higher bit depth (12-bit) are acceptable as they provide enhanced resolution without compromising compatibility.

Input Configuration: The main part features 4 differential inputs. Substitute parts with 1 or 2 differential inputs represent reduced channel count but maintain differential input type compatibility.

Data Interface: The main part uses LVDS serial output. Substitute parts using LVDS parallel output represent a different interface topology but maintain LVDS signaling standards.

Supply Voltage Ranges: Substitute parts must operate within compatible analog and digital supply voltage ranges to ensure proper circuit integration.

Compliance & Certifications: All parts must maintain ROHS3 compliance and equivalent moisture sensitivity levels for manufacturing and environmental compatibility.

The ADC12DL3200ACF qualifies as a substitute based on shared folding interpolating architecture, LVDS data interface, ROHS3 compliance, equivalent operating temperature range, and active product status enabling continued availability.

Parameter Comparison

Engineering Selection Recommendations

Product Status Consideration: The LM97600CIUT/NOPB is obsolete, limiting long-term availability and support. The ADC12DL3200ACF maintains active product status, ensuring continued manufacturing, technical support, and supply chain reliability for new designs or system updates.

Compliance & Environmental Compatibility: Both parts maintain ROHS3 compliance and equivalent moisture sensitivity levels (MSL 3, 168 hours), ensuring compatibility with modern manufacturing processes and environmental regulations. Both parts are REACH unaffected, supporting global distribution and deployment.

Operating Temperature Range: Both parts operate across the identical temperature range (-40°C to 85°C), maintaining thermal performance equivalence for industrial and commercial applications.

Architecture & Signal Processing: Both parts employ folding interpolating architecture with internal reference types, preserving signal acquisition methodology and performance characteristics across substitution.

Supply Voltage Compatibility: The ADC12DL3200ACF offers wider supply voltage ranges (1.05V ~ 2V for both analog and digital supplies) compared to the main part's narrower specifications, providing greater design flexibility and integration options.

Frequently Asked Questions (FAQ)

Q: Can the ADC12DL3200ACF directly replace the LM97600CIUT/NOPB in existing designs?

A: Direct replacement requires design review. While both parts share folding interpolating architecture and LVDS signaling, key differences exist: the ADC12DL3200ACF provides 12-bit resolution versus 7.6-bit, supports reduced input channels (1-2 versus 4), uses LVDS parallel output versus serial, and operates in different package formats (256-FCBGA versus 292-BBGA). PCB layout modifications and firmware adjustments may be necessary.

Q: What are the primary differences in sampling rate capability?

A: The LM97600CIUT/NOPB operates at 5 GHz sampling rate. The ADC12DL3200ACF supports dual sampling rates of 3.2 GHz and 6.4 GHz, providing flexibility for applications requiring lower latency or reduced power consumption at 3.2 GHz, or enhanced performance at 6.4 GHz.

Q: How do input channel differences affect substitution?

A: The main part provides 4 simultaneous differential inputs, while the ADC12DL3200ACF offers 1 or 2 inputs with support for both differential and single-ended configurations. Applications requiring 4 simultaneous channels cannot use the substitute without multiplexing external signals or implementing multiple devices.

Q: Are the data interface formats compatible?

A: Both parts use LVDS signaling but differ in topology: the main part uses LVDS serial output, while the substitute uses LVDS parallel output. This requires different receiver circuitry and firmware interpretation, necessitating interface redesign during substitution.

Q: What packaging considerations apply to substitution?

A: The main part uses 292-BBGA (27x27 mm), while the substitute uses 256-FCBGA (17x17 mm). The smaller substitute package reduces PCB footprint but requires complete PCB redesign, including trace routing, via placement, and thermal management modifications.

Q: Does the higher bit depth of the substitute part affect compatibility?

A: The ADC12DL3200ACF's 12-bit resolution exceeds the main part's 7.6-bit specification, providing enhanced signal fidelity and dynamic range. This improvement is backward compatible with applications designed for lower resolution, though firmware may require adjustment to utilize the additional bits.

Q: Are supply voltage requirements compatible?

A: The ADC12DL3200ACF accepts wider analog and digital supply voltage ranges (1.05V ~ 2V) compared to the main part's narrower specifications (1.14V ~ 1.26V analog, 2.375V ~ 2.625V digital). Existing power supplies designed for the main part may require modification to support the substitute's voltage requirements.