Part A
AD8113JSTZ
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 5722 PCS
- Package
- LQFP-100
- Series
- Interface - Trocadores analógicos - Objetivo Especial
Replacement verdict
Not a drop-in replacement
The AD8113JSTZ and AD8110AST are not drop-in replacements for one another. Although both are analog crosspoint switch ICs from Analog Devices, they differ in channel count, package and pinout, control interface, and switching architecture, so a direct board-level substitution is not possible without redesign.
Different channel count
Different package and pinout
Different control interface
Different switching architecture
Parts at a glance
Part B
AD8110AST
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 116 PCS
- Package
- LQFP-80
- Series
- Interface - Conmutadores analógicos, Multiplexers, Demultiplexeres
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | AD8113JSTZ | AD8110AST | Why it matters |
|---|---|---|---|
| Matrix Configuration | 16 x 16 (256 crosspoints) | 16 x 8 (128 crosspoints) | Defines the number of inputs and outputs that can be routed; a 16x16 device can serve twice as many output channels as a 16x8 device, so they are not directly substitutable in systems needing full 16-output fan-out. |
| Number of Crosspoints | 256 | 128 | Directly determines switching capacity and die complexity; fewer crosspoints limit routing flexibility and the maximum number of simultaneous signal paths. |
| Package / Mounting | 80-lead LQFP (surface mount) | 80-lead LQFP (surface mount) | Package and footprint must match for board-level drop-in compatibility; both use the same 80-lead LQFP, easing physical replacement but not functional equivalence. |
| Output Enable / Disable Control | Per-output enable via serial control | Per-output enable via serial control | Allows unused outputs to be disabled to save power and reduce crosstalk; identical control scheme supports similar software/firmware behavior. |
| Control Interface | Serial (SPI-compatible) digital control | Serial (SPI-compatible) digital control | Determines how the host configures routing; matching serial interfaces simplify firmware reuse across designs. |
| Supply Voltage | ±5 V dual supply (analog) | ±5 V dual supply (analog) | Supply rails must match the system power architecture; identical ±5 V operation allows shared power design and similar signal headroom. |
| Bandwidth | ~60 MHz (large-signal, -3 dB) | ~60 MHz (large-signal, -3 dB) | Sets the maximum signal frequency the switch can pass with acceptable attenuation; comparable bandwidth supports similar video/RF routing applications. |
| Channel-to-Channel Crosstalk | Low crosstalk (typ. -60 dB at 5 MHz) | Low crosstalk (typ. -60 dB at 5 MHz) | Crosstalk affects signal integrity in dense routing; similar isolation means comparable performance in multi-channel systems. |
| Operating Temperature Range | -40 °C to +85 °C (industrial) | -40 °C to +85 °C (industrial) | Temperature range must cover the application environment; matching industrial ratings allow use in the same operating conditions. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AD8113JSTZ | AD8110AST |
|---|---|---|
| Supplier | - | Rochester Electronics, LLC |
| Part Status | Active | Obsolete |
| Mounting Type | Surface Mount | Surface Mount |
| Applications | Audio, Video | - |
| Multiplexer / Demultiplexer Circuit | 16:16 | - |
| Number of Channels | 1 | - |
| Voltage - Supply, Dual (V±) | ±5V ~ 12V | - |
| -3 dB Bandwidth | 60MHz | - |
| Features | Buffered | - |
| Operating Temperature | 0°C ~ 70°C (TA) | - |
Frequently asked questions
What are the primary differences between the AD8113JSTZ and the AD8110AST?
The AD8113JSTZ is a 16 × 16 crosspoint switch with a gain of +2, specified for ±5 V or +5 V operation, and housed in a 100-lead LQFP package. The AD8110AST is a 16 × 8 crosspoint switch with a gain of +1, specified for ±5 V operation, and housed in an 80-lead LQFP package. The AD8113JSTZ provides twice the output channel count and a fixed gain of +2, while the AD8110AST offers half the output count with unity gain.
Are the AD8113JSTZ and AD8110AST pin-compatible or footprint-compatible?
No. The AD8113JSTZ uses a 100-lead LQFP package, while the AD8110AST uses an 80-lead LQFP package. The package body sizes and pin counts differ, so the PCB land patterns are not interchangeable and the two devices cannot be directly substituted without a board redesign.
What are the matrix dimensions and channel counts of each device?
The AD8113JSTZ is a 16 × 16 crosspoint switch, providing 16 inputs and 16 outputs. The AD8110AST is a 16 × 8 crosspoint switch, providing 16 inputs and 8 outputs. The AD8113JSTZ therefore offers twice as many output channels as the AD8110AST.
What gain configuration does each crosspoint switch use?
The AD8113JSTZ is specified with a gain of +2 (6 dB). The AD8110AST is specified with a gain of +1 (0 dB, unity gain). This difference affects output signal amplitude and must be accounted for in system level planning.
What supply voltages are the AD8113JSTZ and AD8110AST specified for?
Both devices are specified for dual ±5 V supplies. The AD8113JSTZ is additionally specified for single +5 V operation, while the AD8110AST is specified for ±5 V operation. Designers should confirm the exact supply configuration against the respective manufacturer datasheets for the intended operating mode.
Do both parts support serial and parallel control interfaces?
Yes. Both the AD8113JSTZ and the AD8110AST provide both serial and parallel control interface options for programming the crosspoint matrix, allowing host controllers to select input-to-output connections using either interface style.
Can the AD8110AST be used as a drop-in replacement for the AD8113JSTZ in an existing design?
No. Beyond the package and pin-count differences (80-lead versus 100-lead LQFP), the AD8110AST provides only 8 outputs versus 16 on the AD8113JSTZ and uses unity gain versus a gain of +2. A direct drop-in replacement is not possible; the design would require re-layout and revalidation of channel count and gain requirements.
What are typical applications for these crosspoint switches?
Both devices are intended for routing analog video and signal paths in professional video, broadcast, and instrumentation systems where multiple inputs must be switched to multiple outputs under digital control. The AD8113JSTZ suits systems needing 16 outputs and gain, while the AD8110AST suits systems needing 8 outputs at unity gain.